Developer Workbench
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Fast, focused utilities for developers and designers. Search the collection and get straight to work.
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- SEO & PerformanceRecent
Compression Ratio Calculator
Compare original, gzip, and Brotli sizes to see compression ratios and percentage savings.
Open tool - Database & SQLRecent
SQL Pagination Calculator
Turn a page number and page size into SQL LIMIT/OFFSET (or OFFSET/FETCH) and see the boundary cases explained.
Open tool - Database & SQLRecent
SQL Identifier Converter
Normalize field and table names into snake_case, camelCase, PascalCase and other SQL naming conventions, entirely in your browser.
Open tool - CSS & LayoutRecent
CSS Gradient Generator
Build linear, radial and conic CSS gradients with a live preview and copy-ready CSS — all in your browser.
Open tool - CSS & LayoutRecent
CSS Transform Playground
Combine translate, rotate, scale, skew and transform-origin with a live preview, then copy the CSS.
Open tool - CSS & LayoutRecent
CSS Filter Generator
Build CSS filter chains for blur, brightness, contrast, hue, saturation and more with a live preview and copyable CSS.
Open tool - CSS & LayoutRecent
Cubic Bezier Editor
Design easing curves visually, preview the motion, and copy production-ready cubic-bezier() CSS.
Open tool - CSS & LayoutRecent
Media Query Generator
Build CSS media queries from width, orientation, pointer, hover, color-scheme, and more — with a live match preview in your browser.
Open tool - CSS & LayoutRecent
CSS Unit Converter
Convert px, rem, em, percent, vw, vh, and related CSS units using configurable root, parent, and viewport bases.
Open tool - CSS & LayoutRecent
CSS Specificity Calculator
Calculate CSS selector specificity and compare which selector wins, entirely in your browser.
Open tool - Color & TypographyRecent
Universal Color Converter
Convert HEX, RGB, HSL, HSV, HWB, CMYK and alpha-aware color formats live in your browser.
Open tool - Color & TypographyRecent
Color Shade Generator
Generate configurable lighter and darker shade scales from a base color, then copy CSS variables, JSON tokens or Tailwind config.
Open tool - HTML & MarkupRecent
HTML Formatter
Beautify or compact HTML with configurable indentation while preserving markup semantics.
Open tool - HTML & MarkupRecent
HTML Table Generator
Build a table visually or from pasted CSV/TSV data and copy clean, ready-to-paste HTML.
Open tool - HTML & MarkupRecent
Meta Tag Generator
Generate a complete baseline of SEO, Open Graph, and Twitter meta tags for any page — entirely in your browser.
Open tool - HTML & MarkupRecent
Open Graph Generator
Build Open Graph and Twitter Card meta tags with a live social preview — entirely in your browser.
Open tool - AccessibilityRecent
Heading Structure Visualizer
Paste HTML to see its H1–H6 outline and catch skipped levels, empty headings, and H1 mistakes — entirely in your browser.
Open tool - JavaScript & BrowserRecent
JavaScript Formatter
Beautify or compact JavaScript instantly in your browser, with clear error locations and copy or download output.
Open tool - JavaScript & BrowserRecent
Fetch Request Builder
Build browser fetch() requests with query parameters, headers, and body types, then copy the generated JavaScript.
Open tool - Structured DataRecent
JSON Validator
Validate JSON with clear line, column and syntax error feedback — entirely in your browser.
Open tool - Structured DataRecent
JSON Tree Viewer
Explore JSON as a collapsible, searchable tree with instant feedback — entirely in your browser.
Open tool - Structured DataRecent
JSON to PHP Array
Convert JSON into clean, readable PHP array syntax — entirely in your browser.
Open tool - Structured DataRecent
XML Formatter & Validator
Format XML with clean indentation and locate malformed markup with line and column details — entirely in your browser.
Open tool - Text & RegexRecent
Case Converter
Convert text between camelCase, snake_case, kebab-case, PascalCase, Title Case and more — instantly, in your browser.
Open tool - Text & RegexRecent
Whitespace Cleaner
Normalize spaces, tabs, blank lines, trailing whitespace, and line endings entirely in your browser.
Open tool - Text & RegexRecent
Find / Replace Tester
Preview literal or regular-expression find and replace operations with match highlighting and clear errors before you apply them.
Open tool - Text & RegexRecent
Character Counter
Count characters, words, lines, bytes, graphemes, and Unicode code points live in your browser.
Open tool - Text & RegexRecent
Multi-Context String Escaper
Escape or unescape text for HTML, JavaScript, JSON, SQL, URLs and regular expressions — entirely in your browser.
Open tool - Text & RegexRecent
Regex Replacement Tester
Test search-and-replace regular expressions with capture-group substitutions against sample text, live in your browser.
Open tool - URL, HTTP & APIsRecent
URL Parser
Break a URL into scheme, authority, hostname, port, path, query, and fragment — entirely in your browser.
Open tool - URL, HTTP & APIsRecent
Query String Builder
Build correctly encoded query strings from editable key/value pairs and copy the result.
Open tool - URL, HTTP & APIsRecent
Query String Parser
Turn a URL or query string into an editable table of parameters and rebuild a clean query string — in your browser.
Open tool - URL, HTTP & APIsRecent
UTM Builder
Build correctly encoded UTM campaign URLs from a destination link and campaign details, entirely in your browser.
Open tool - URL, HTTP & APIsRecent
URL Cleaner
Strip tracking parameters and tidy up URLs without changing where they point — entirely in your browser.
Open tool - URL, HTTP & APIsRecent
HTTP Header Parser
Paste raw request or response headers and get a structured, explained, copyable view in your browser.
Open tool - URL, HTTP & APIsRecent
HTTP Status Code Reference
Search HTTP status codes by number or phrase and read concise meanings, usage notes and related codes.
Open tool - URL, HTTP & APIsRecent
cURL Command Builder
Turn a method, URL, headers, and body into a ready-to-paste curl command — entirely in your browser.
Open tool - Security & EncodingRecent
Base64 Encoder / Decoder
Encode text or files to Base64, or decode Base64 back to text and files, entirely in your browser.
Open tool - Security & EncodingRecent
Hash Generator
Generate MD5, SHA-1, SHA-256, SHA-384, SHA-512 and CRC32 hashes from text or a file — entirely in your browser.
Open tool - Security & EncodingRecent
JWT Decoder
Decode a JWT header and payload and inspect its claims locally — your token never leaves the browser.
Open tool - Security & EncodingRecent
Secure Password Generator
Generate a strong random password with configurable length and character rules from your browser's cryptographic random source.
Open tool - Security & EncodingRecent
Secure Random String Generator
Generate cryptographically secure random tokens and passwords from configurable character sets and lengths — all in your browser.
Open tool - Images & SVGRecent
Image Dimension Inspector
Drop in an image to instantly read its dimensions, aspect ratio, file size, MIME type, and metadata — all in your browser.
Open tool - Images & SVGRecent
Base64 Image Converter
Convert an image to a Base64 data URI or decode a data URI back into a downloadable image — all in your browser.
Open tool - Images & SVGRecent
SVG Viewer
Paste SVG markup to preview it safely and get clear source diagnostics — entirely in your browser.
Open tool - Images & SVGRecent
SVG Formatter
Beautify or minify SVG markup with a live preview, all in your browser.
Open tool - Images & SVGRecent
SVG to Data URI
Encode SVG markup into a URL-encoded or Base64 data URI for CSS and HTML, entirely in your browser.
Open tool - SEO & PerformanceRecent
SERP Snippet Preview
Preview your title, description, and URL as a Google-style search snippet at desktop and mobile widths.
Open tool - SEO & PerformanceRecent
Robots.txt Generator
Build a valid robots.txt with allow/disallow rules, crawl-delay and sitemap — with a live preview in your browser.
Open tool - SEO & PerformanceRecent
Sitemap XML Generator
Turn a list of URLs into valid sitemap XML with live validation, copy, and download — entirely in your browser.
Open tool - SEO & PerformanceRecent
Hreflang Generator
Generate hreflang link elements for locale and region combinations from a base URL and URL pattern — entirely in your browser.
Open tool - SEO & PerformanceRecent
Social Preview Tester
Preview Open Graph and Twitter Card metadata live, with length checks and copy-ready meta tags.
Open tool - SEO & PerformanceRecent
Cache-Control Explainer
Paste any Cache-Control header to get a plain-English breakdown of every directive, plus warnings for conflicts and mistakes.
Open tool - Database & SQLRecent
SQL Formatter
Beautify SQL for common dialects with live formatting, configurable keyword case and copy or download output.
Open tool - Database & SQLRecent
SQL IN-Clause Builder
Turn pasted values into quoted, escaped, deduplicated SQL IN lists — entirely in your browser.
Open tool - Dates & SchedulingRecent
Time Zone Converter
Convert a date and time across multiple IANA time zones at once, with daylight saving applied for that date — entirely in your browser.
Open tool - Dates & SchedulingRecent
ISO 8601 Converter
Parse and build ISO 8601 dates, timestamps, offsets, and durations with instant, plain-English explanations.
Open tool - Dates & SchedulingRecent
Date Difference Calculator
Calculate exact and calendar differences between two dates or times, including business days, entirely in your browser.
Open tool - Dates & SchedulingRecent
Business Days Calculator
Count business days between two dates with configurable weekends and holiday exclusions — entirely in your browser.
Open tool - Git, Server & DeploymentRecent
Gitignore Generator
Build a .gitignore from selected languages, frameworks, editors, and operating systems with a live preview you can copy or download.
Open tool - Git, Server & DeploymentRecent
chmod Calculator
Convert Unix file permissions between checkbox, octal, and symbolic forms and copy a ready-to-run chmod command.
Open tool - Color & TypographyRecent
Font Size Scale Generator
Build a modular type scale from a base size and ratio, preview it live, and copy ready-to-use CSS variables.
Open tool - Color & TypographyRecent
CSS Text Shadow Generator
Build single or layered CSS text shadows with a live preview, then copy production-ready CSS — entirely in your browser.
Open tool - Structured DataRecent
CSV Deduplicator
Remove duplicate CSV rows using all columns or selected key columns — entirely in your browser.
Open tool - Images & SVGRecent
Placeholder Image Generator
Generate downloadable placeholder images at exact sizes with custom labels and colors — entirely in your browser.
Open tool - Creative Workflow HelpersRecent
MIME Type Inspector
Look up or infer MIME types from a filename, extension, or Content-Type header — with a structured breakdown.
Open tool - Creative Workflow HelpersRecent
Invisible Character Finder
Reveal zero-width spaces, non-breaking spaces, bidi marks and other invisible characters in your text.
Open tool - CSS & LayoutRecent
Backdrop Filter Generator
Create frosted-glass backdrop-filter and blur effects with a live preview and copyable CSS.
Open tool - CSS & LayoutRecent
Z-Index Planner
Plan named UI layers and generate a consistent z-index scale you can copy straight into CSS.
Open tool - AccessibilityRecent
Touch Target Checker
Check element dimensions and spacing against WCAG, Apple, and Material touch-target guidance in your browser.
Open tool - AccessibilityRecent
Accessible Button Generator
Generate accessible button and link patterns for common interaction types, with a live preview, copyable HTML and CSS, and plain-language accessibility notes.
Open tool - JavaScript & BrowserRecent
JavaScript Object Inspector
Paste JSON or a JavaScript object literal to explore its types, keys, nesting and paths — entirely in your browser.
Open tool - Structured DataRecent
JSON Path Finder
Click any value in nested JSON to get its dot, bracket, and JSON Pointer paths — entirely in your browser.
Open tool - Structured DataRecent
CSV Column Extractor
Select, rename, reorder, or remove CSV columns and copy or download the result — entirely in your browser.
Open tool - URL, HTTP & APIsRecent
URL Comparison Tool
Compare two URLs component by component and highlight meaningful differences — entirely in your browser.
Open tool - URL, HTTP & APIsRecent
Bulk URL Parser
Paste many URLs and parse them into downloadable structured columns — entirely in your browser.
Open tool - Security & EncodingRecent
JWT Expiration Calculator
Paste a JWT to see when it was issued, when it becomes valid, and exactly how long until it expires.
Open tool - Images & SVGRecent
SVG Color Replacer
Paste an SVG to discover every fill and stroke color, then swap individual colors with live preview.
Open tool - SEO & PerformanceRecent
Canonical URL Checker
Compare a page URL with its canonical URL and flag common canonicalization problems, entirely in your browser.
Open tool - SEO & PerformanceRecent
Resource Size Calculator
Paste a list of JS, CSS, image and font resources to total them and see the size breakdown by category.
Open tool - SEO & PerformanceRecent
Page Weight Budget Planner
Set a total page-weight budget, split it across resource categories, and track actual sizes against each cap in your browser.
Open tool - SEO & PerformanceRecent
Preload / Preconnect Generator
Generate preload, preconnect, dns-prefetch, prefetch, and modulepreload resource hints for your page head.
Open tool - SEO & PerformanceRecent
Image Savings Calculator
Compare image dimensions and formats in your browser to see transfer savings across page views.
Open tool - Database & SQLRecent
SQL Minifier
Compress SQL onto one line by removing comments and redundant whitespace while preserving strings and query semantics.
Open tool - Structured DataRecent
JSONPath Tester
Run JSONPath expressions against your JSON and instantly inspect every matched value and its path — entirely in your browser.
Open tool - Structured DataRecent
YAML Validator
Validate and format YAML with clear line, column and syntax error feedback — entirely in your browser.
Open tool - Structured DataRecent
YAML / JSON Converter
Convert between YAML and JSON in both directions with instant validation and copy or download output.
Open tool - Security & EncodingRecent
HMAC Generator
Generate HMAC signatures from a message and secret key with SHA-256, SHA-512, SHA-384, SHA-1 or MD5 — entirely in your browser.
Open tool - AccessibilityRecent
Accessible Link Checker
Paste HTML markup to flag vague, duplicated, empty, or context-poor link text before it ships.
Open tool - Git, Server & DeploymentRecent
Environment File Inspector
Validate .env-style files and catch duplicate keys, malformed lines, and suspicious whitespace — entirely in your browser.
Open tool - CSS & LayoutRecent
CSS Grid Generator
Design grid columns, rows, gaps and named areas visually with a live preview and copy-ready CSS — all in your browser.
Open tool - CSS & LayoutRecent
Flexbox Playground
Experiment with flex container and item properties against a live layout and copy the finished CSS.
Open tool - CSS & LayoutRecent
CSS Animation Builder
Create CSS @keyframes animations visually with a live preview, presets and copyable CSS.
Open tool - Color & TypographyRecent
Color Palette Generator
Turn one seed color into a coordinated color-harmony palette, then copy it as CSS variables, JSON tokens, Tailwind colors or a hex list.
Open tool - HTML & MarkupRecent
HTML Validator Helper
Paste HTML to find common structural mistakes with clear, plain-language fixes — entirely in your browser.
Open tool - HTML & MarkupRecent
HTML Form Builder
Build compact, accessible HTML forms visually and copy clean, ready-to-paste markup — entirely in your browser.
Open tool - AccessibilityRecent
Accessible Form Checker
Paste form markup to flag missing labels, broken label and aria references, missing fieldset legends, and other accessibility failures.
Open tool - Structured DataRecent
JSON Diff
Compare two JSON documents semantically and see every added, removed and changed value — entirely in your browser.
Open tool - Structured DataRecent
JSON to CSV
Flatten JSON records into clean, configurable CSV you can copy or download — entirely in your browser.
Open tool - Structured DataRecent
CSV to JSON
Convert CSV to JSON with delimiter, header, and type options — entirely in your browser.
Open tool - Structured DataRecent
XML to JSON Converter
Convert common XML structures into predictable, attribute-aware JSON — entirely in your browser.
Open tool - Structured DataRecent
CSV Viewer
Paste or upload CSV data and explore it as a sortable, filterable table — entirely in your browser.
Open tool - Text & RegexRecent
Text Diff
Compare two text blocks and see line and inline differences side by side — entirely in your browser.
Open tool - Text & RegexRecent
Regex Tester
Test regular expressions live against sample text and see every match, capture group and error highlighted in your browser.
Open tool - Text & RegexRecent
Regex Explainer
Break a regular expression into understandable components and flags, then test it against sample text in your browser.
Open tool - Text & RegexRecent
Regex Builder
Build regular expressions from reusable blocks with a live match preview — entirely in your browser.
Open tool - URL, HTTP & APIsRecent
HTTP Request Builder
Build a complete HTTP request from method, URL, query parameters, headers, and body, then copy the raw message or cURL command.
Open tool - URL, HTTP & APIsRecent
cURL Command Explainer
Paste a curl command and get every option, header, URL part and body explained — entirely in your browser.
Open tool - URL, HTTP & APIsRecent
cURL to Fetch Converter
Paste a curl command and instantly get ready-to-paste browser fetch() JavaScript, entirely in your browser.
Open tool - URL, HTTP & APIsRecent
cURL to PHP Converter
Convert a curl command into concise, ready-to-run PHP cURL code — entirely in your browser.
Open tool - URL, HTTP & APIsRecent
API Response Inspector
Paste a raw HTTP response to inspect its status, headers and body — with JSON, XML, HTML and form payloads rendered clearly in your browser.
Open tool - Security & EncodingRecent
Password Strength Analyzer
Analyze a password's length, character mix, repetition and estimated crack resistance locally in your browser.
Open tool - Security & EncodingRecent
CSP Builder
Build a Content-Security-Policy from ready-made presets, tune every directive, and copy it as a header, meta tag, or nginx rule — entirely in your browser.
Open tool - Images & SVGRecent
Image Resizer
Resize PNG, JPEG, WebP, GIF, BMP or SVG images to exact dimensions, a percentage or a bounding box, then download the result in your browser.
Open tool - Images & SVGRecent
Image Cropper
Crop images in your browser with freeform handles, exact pixel fields, or common aspect ratio presets.
Open tool - Images & SVGRecent
Image Compressor
Compress images in your browser with a live before/after quality comparison and instant size savings.
Open tool - Images & SVGRecent
Image Format Converter
Convert images between PNG, JPEG and WebP in your browser, with quality and resize controls and nothing uploaded.
Open tool - Images & SVGRecent
Favicon Generator
Turn one source image into favicon.ico, PNG icons, a web app manifest and copy-ready HTML link tags — entirely in your browser.
Open tool - Images & SVGRecent
SVG Optimizer
Strip unnecessary SVG metadata and simplify markup while keeping the artwork rendering correctly — all in your browser.
Open tool - SEO & PerformanceRecent
Robots.txt Tester
Check whether a URL is allowed or blocked for a chosen user-agent under pasted robots.txt rules.
Open tool - SEO & PerformanceRecent
Schema.org Generator
Build common schema.org JSON-LD structured data with guided fields and copy it straight into your pages.
Open tool - SEO & PerformanceRecent
JSON-LD Validator Helper
Validate JSON-LD syntax and flag common structural omissions in your structured data — entirely in your browser.
Open tool - SEO & PerformanceRecent
Web App Manifest Generator
Build a valid web app manifest interactively with a live preview, installability checks, and copyable JSON.
Open tool - Database & SQLRecent
SQL INSERT Generator
Paste CSV, TSV, or JSON and instantly generate escaped, ready-to-run SQL INSERT statements in your browser.
Open tool - Database & SQLRecent
JOIN Visualizer
Visualize INNER, LEFT, RIGHT, FULL and CROSS joins against tiny example tables, entirely in your browser.
Open tool - Dates & SchedulingRecent
Time Zone Meeting Planner
Compare working hours across time zones and find the best overlapping meeting times — entirely in your browser.
Open tool - Dates & SchedulingRecent
Cron Expression Builder
Build a cron expression visually from scheduling intent and copy it, with plain-language feedback and next run times.
Open tool - Dates & SchedulingRecent
Cron Next-Run Calculator
Preview the next execution times for a cron expression in any time zone, entirely in your browser.
Open tool - Git, Server & DeploymentRecent
Git Command Explainer
Paste a git command and get the subcommand, every flag, the targets and the likely effects explained in plain English.
Open tool - Git, Server & DeploymentRecent
.htaccess Redirect Generator
Generate common Apache .htaccess redirect and rewrite rules for URLs, domains, HTTPS, trailing slashes, and clean URLs — in your browser.
Open tool - Creative Workflow HelpersRecent
Cookie Builder & Inspector
Build a Set-Cookie header or paste one to inspect its expiry, path, domain, Secure, HttpOnly and SameSite attributes — entirely in your browser.
Open tool - Creative Workflow HelpersRecent
CORS Header Builder & Explainer
Model a cross-origin request and get the exact CORS response headers to send, explained in plain language.
Open tool - Creative Workflow HelpersRecent
JSON Schema Validator
Validate a JSON instance against a JSON Schema and get readable path-level errors — entirely in your browser.
Open tool - Creative Workflow HelpersRecent
PHP Array / JSON Converter
Convert PHP array syntax to JSON and JSON back to PHP array syntax, entirely in your browser.
Open tool - Color & TypographyRecent
Typography Preview
Compare font families, weights, sizes, spacing and line heights against your own sample text — live in the browser.
Open tool - AccessibilityRecent
ARIA Attribute Helper
Explain and generate the ARIA attributes for common accessible UI patterns, with copyable markup.
Open tool - SEO & PerformanceRecent
SEO Head Analyzer
Paste your page's head markup to find missing, duplicate, or conflicting SEO metadata — entirely in your browser.
Open tool - Creative Workflow HelpersRecent
Form Payload Visualizer
Turn form fields into a query string, URL-encoded body, FormData object, or multipart payload and see exactly what gets sent — entirely in your browser.
Open tool - CSS & LayoutRecent
CSS Shape Generator
Design circles, ellipses, polygons, badges, tags and speech bubbles, then copy clean, production-ready CSS.
Open tool - CSS & LayoutRecent
Breakpoint Tester
Preview your HTML at multiple viewport widths side by side and catch horizontal overflow at each breakpoint.
Open tool - Color & TypographyRecent
Accessible Palette Generator
Turn one brand color into an accessible tonal palette whose text, button and muted roles are adjusted to meet a WCAG contrast target.
Open tool - HTML & MarkupRecent
HTML Email Table Builder
Build conservative table-based HTML email layouts with a live preview and copyable, email-safe markup.
Open tool - HTML & MarkupRecent
Semantic HTML Advisor
Pick a common page structure and get the right semantic HTML elements, with a copyable snippet and a plain-English explanation.
Open tool - AccessibilityRecent
Tab Order Visualizer
Paste HTML and instantly see every focusable element in the exact order the Tab key will reach it.
Open tool - AccessibilityRecent
WCAG Contrast Batch Checker
Test every foreground and background combination between two color palettes and see which ones pass WCAG contrast.
Open tool - JavaScript & BrowserRecent
Array Transformation Playground
Build map, filter, sort, reduce, grouping, and projection pipelines over a JSON array and copy the result — entirely in your browser.
Open tool - JavaScript & BrowserRecent
JavaScript Date Tester
Test how JavaScript parses and formats date strings across time zones, with instant validity checks and copyable output.
Open tool - Structured DataRecent
CSV Cleaner
Detect malformed quoting, inconsistent columns, whitespace and delimiter problems, then copy or download a cleaned CSV.
Open tool - Structured DataRecent
Data Type Detector
Paste tabular values and instantly infer each column's likely data type and nullability — entirely in your browser.
Open tool - Structured DataRecent
Nested Data Flattener
Flatten nested JSON into tabular dot or bracket paths, or reconstruct nested JSON from flat paths — entirely in your browser.
Open tool - Text & RegexRecent
Log Pattern Extractor
Develop and test regex extraction patterns against groups of log lines, entirely in your browser.
Open tool - Text & RegexRecent
Capture Group Visualizer
See the capture groups, nesting and matched text of any regular expression highlighted as you type.
Open tool - Images & SVGRecent
Responsive Image Generator
Plan responsive image variant widths and generate ready-to-paste srcset, sizes and img markup — entirely in your browser.
Open tool - Images & SVGRecent
Social Image Safe-Area Preview
Preview artwork against common social sharing crops and text-safe regions, entirely in your browser.
Open tool - Images & SVGRecent
SVG Path Viewer
Paste SVG path data to preview it and inspect its bounding box, coordinates, and command breakdown — entirely in your browser.
Open tool - Images & SVGRecent
SVG Sprite Builder
Combine uploaded SVG icons into a single reusable symbol sprite, entirely in your browser.
Open tool - Images & SVGRecent
SVG Background Generator
Build lightweight, tileable SVG background patterns with a live preview, then copy the SVG or CSS.
Open tool - Images & SVGRecent
SVG Icon Preview Sheet
Paste or load many SVG icons into a searchable labeled preview grid and export the set as a sprite.
Open tool - Database & SQLRecent
SQL Table Generator
Paste sample JSON or CSV data and instantly infer a starter CREATE TABLE statement for your database.
Open tool - Database & SQLRecent
MySQL Date Expression Builder
Build common MySQL date ranges, intervals, and comparison clauses visually and copy a ready-to-paste WHERE expression.
Open tool - Git, Server & DeploymentRecent
Git Command Builder
Pick a Git task and fill in the details to get an exact, copyable command with a plain-language explanation.
Open tool - Git, Server & DeploymentRecent
Git Diff Cleaner
Paste a raw git diff to summarize files and line changes and optionally hide noise such as whitespace-only edits — in your browser.
Open tool - Git, Server & DeploymentRecent
Docker Port / Volume Visualizer
Paste a docker run command or Compose snippet to see every port and volume mapping explained, with clear warnings.
Open tool - Git, Server & DeploymentRecent
Deployment Checklist Generator
Describe your stack and get a focused pre/post-deploy checklist with rollback steps, ready to copy or download.
Open tool - Creative Workflow HelpersRecent
CSS Logical Properties Converter
Convert directional CSS like margin-left or text-align into logical property equivalents, with a live LTR/RTL preview.
Open tool - Creative Workflow HelpersRecent
DOM Diff Viewer
Compare two HTML fragments structurally to see exactly which elements, attributes and text changed — entirely in your browser.
Open tool - Creative Workflow HelpersRecent
.env Compare & Merge
Compare development, staging, and production .env key sets without exposing secret values, then build a merged template.
Open tool - Creative Workflow HelpersRecent
Unicode Character Inspector
Inspect any character as grapheme clusters, code points, Unicode names, categories and UTF-8/UTF-16 encodings — entirely in your browser.
Open tool - Creative Workflow HelpersRecent
Stack Trace Cleaner
Paste a stack trace to strip framework noise, collapse repeated frames, and copy a clean, readable result — entirely in your browser.
Open tool - Creative Workflow HelpersRecent
Log Timestamp Normalizer
Paste mixed logs, detect every timestamp format, and normalize them to one timezone and format in your browser.
Open tool - Creative Workflow HelpersRecent
Permissions Policy Builder
Build, validate and explain a Permissions-Policy header for browser features — entirely in your browser.
Open tool - JavaScript & BrowserRecent
Browser Feature Checker
Check browser support for a web platform feature against a bundled compatibility snapshot and see whether it passes your target browser versions.
Open tool - URL, HTTP & APIsRecent
Redirect Chain Inspector
Paste captured HTTP responses and inspect every redirect hop — status, Location, resolved URLs, loops and timing — entirely in your browser.
Open tool - URL, HTTP & APIsRecent
Webhook Payload Tester
Build a webhook payload and headers with real provider presets, sign it with HMAC, and copy a ready-to-run cURL, JavaScript or raw HTTP replay — all in your browser.
Open tool - AccessibilityRecent
Alt Text Helper
Get the right alt attribute for any image based on its purpose and context, with copyable HTML and a screen-reader preview.
Open tool - SEO & PerformanceRecent
Service Worker Cache Planner
Map asset and request categories to service-worker caching strategies and get ready-to-ship Workbox or vanilla code.
Open tool - Creative Workflow HelpersRecent
Webhook Signature Verifier
Verify GitHub, Stripe, Shopify and Slack HMAC webhook signatures from the raw body, secret and header — entirely in your browser.
Open tool - Creative Workflow HelpersRecent
JSON Schema Sample Generator
Paste a JSON Schema and instantly generate a representative example JSON instance — entirely in your browser.
Open tool - Creative Workflow HelpersRecent
Mojibake Repair Helper
Paste garbled text to detect the encoding mistake behind it and preview the most likely repair, entirely in your browser.
Open tool - Creative Workflow HelpersRecent
CSS Stacking Context Explorer
Model stacking contexts and instantly see why one element paints above or below another, entirely in your browser.
Open tool - Creative Workflow HelpersRecent
CSS Cascade Conflict Explainer
Paste competing CSS declarations and instantly see which one wins and why — importance, layers, specificity and source order.
Open tool - Creative Workflow HelpersRecent
Accessible Name Calculator
Paste HTML, pick an element, and see the accessible name assistive technology computes — entirely in your browser.
Open tool - Creative Workflow HelpersRecent
JSON Schema Generator from Sample
Paste one or more sample JSON payloads and infer a starter JSON Schema instantly — entirely in your browser.
Open tool - Creative Workflow HelpersRecent
CSP Analyzer
Paste a Content-Security-Policy to flag risky, redundant, contradictory, and commonly misunderstood directives — entirely in your browser.
Open tool - Creative Workflow HelpersRecent
MySQL EXPLAIN Visualizer
Paste MySQL EXPLAIN output to get a readable execution plan with plain-English warnings — entirely in your browser.
Open tool - Images & SVGRecent
SVG Path Transformer
Scale, translate, rotate, and flip SVG path coordinates around the path center or the origin, with a live preview and copyable result.
Open tool - Database & SQLRecent
Database Schema Diff Viewer
Compare two CREATE TABLE schema definitions and highlight structural changes in tables, columns, indexes and foreign keys.
Open tool - Creative Workflow HelpersRecent
Apache Rewrite Tester
Test Apache mod_rewrite rules against a sample request path and see the rewritten URL, redirects, captures and warnings.
Open tool - Text & RegexRecent
Regex Flavor Comparator
Paste a regular expression to see which constructs differ across JavaScript, Python, PHP/PCRE, Java, .NET, Ruby, Go and Rust.
Open tool - Git, Server & DeploymentRecent
Nginx / Apache Rule Converter
Translate common redirect and routing rules between Apache .htaccess and Nginx syntax, entirely in your browser.
Open tool - Color & Typography
Color Mixer
Mix two colors, then build design-system tints, shades, UI states, palettes and transparency steps with HEX, RGB, HSL and color-mix() output.
Open tool - Color & Typography
Contrast Checker
Check foreground and background colors for WCAG AA and AAA contrast pass levels.
Open tool - Color & Typography
Line Height Calculator
Turn a font size and target ratio into readable line-height values in unitless, px, em, rem, percent, and points.
Open tool - Creative Workflow Helpers
CSS Selector Match Tester
Paste your HTML and a CSS selector to instantly see which elements match — entirely in your browser.
Open tool - CSS & Layout
Aspect Ratio Calculator
Convert width and height into a simplified aspect ratio, find a missing dimension from a ratio, and copy a CSS aspect-ratio value.
Open tool - CSS & Layout
Border Radius Generator
Set uniform or per-corner border radii with a live preview, then copy the CSS — entirely in your browser.
Open tool - CSS & Layout
Box Shadow Generator
Visually build single or layered CSS box shadows and copy production-ready CSS — entirely in your browser.
Open tool - CSS & Layout
CSS Clamp Generator
Generate responsive clamp() values from minimum and maximum sizes and viewport ranges, with a live preview.
Open tool - CSS & Layout
CSS Transition Builder
Compose CSS transition properties, durations, delays and easing values with a live preview and copyable output.
Open tool - CSS & Layout
CSS Triangle Generator
Design border-based CSS triangles visually and copy production-ready CSS.
Open tool - Dates & Scheduling
Cron Expression Explainer
Translate cron expressions into plain language with a field-by-field breakdown, warnings, and next run times — all in your browser.
Open tool - Dates & Scheduling
Unix Timestamp Converter
Convert Unix timestamps to readable dates and back, in seconds or milliseconds, entirely in your browser.
Open tool - HTML & Markup
HTML Entity Encoder / Decoder
Encode or decode named and numeric HTML entities instantly in your browser.
Open tool - HTML & Markup
HTML List Generator
Turn plain lines or term/definition pairs into clean, ready-to-paste ordered, unordered, or definition lists.
Open tool - JavaScript & Browser
JavaScript String Escaper
Escape and unescape arbitrary strings safely for JavaScript string literals — entirely in your browser.
Open tool - Security & Encoding
UUID Generator
Generate UUID v4 and v7 values in bulk, then copy or download them — everything runs in your browser.
Open tool - SEO & Performance
Cache-Control Builder
Build a Cache-Control response header from your caching intent, with live explanations and copyable output.
Open tool - Structured Data
JSON Formatter
Beautify or minify JSON with configurable indentation, live validation, and copy or download output.
Open tool - Structured Data
JSON to JavaScript
Convert JSON into clean JavaScript object, constant, or module syntax — entirely in your browser.
Open tool - Text & Regex
Duplicate Line Remover
Remove duplicate lines from pasted text, keeping the first or last occurrence, with case and whitespace matching options — entirely in your browser.
Open tool - Text & Regex
Line Sorter
Sort lines alphabetically, numerically, naturally, by length, or randomly with trim and duplicate options.
Open tool - Text & Regex
Lorem Ipsum Generator
Generate configurable lorem ipsum placeholder words, sentences, or paragraphs in your browser.
Open tool - Text & Regex
Slug Generator
Turn titles and phrases into configurable URL-safe slugs, live in your browser.
Open tool - URL, HTTP & APIs
Pagination Calculator
Calculate page counts, offsets, limits, item ranges, and pagination URLs for any paged list.
Open tool - URL, HTTP & APIs
Relative URL Resolver
Resolve relative URLs against a base URL and copy the absolute results — entirely in your browser.
Open tool - URL, HTTP & APIs
URL Encoder / Decoder
Percent-encode or decode a URL or component with encodeURI, encodeURIComponent, form and strict RFC 3986 modes — entirely in your browser.
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