Security & Encoding Tools
10 browser-based security & encoding tools. Pick one to get started — most run entirely in your browser.
Tools in this category
- Security & Encoding
Base64 Encoder / Decoder
Encode text or files to Base64, or decode Base64 back to text and files, entirely in your browser.
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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.
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Hash Generator
Generate MD5, SHA-1, SHA-256, SHA-384, SHA-512 and CRC32 hashes from text or a file — entirely in your browser.
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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.
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JWT Decoder
Decode a JWT header and payload and inspect its claims locally — your token never leaves the browser.
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JWT Expiration Calculator
Paste a JWT to see when it was issued, when it becomes valid, and exactly how long until it expires.
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Password Strength Analyzer
Analyze a password's length, character mix, repetition and estimated crack resistance locally in your browser.
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Secure Password Generator
Generate a strong random password with configurable length and character rules from your browser's cryptographic random source.
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Secure Random String Generator
Generate cryptographically secure random tokens and passwords from configurable character sets and lengths — all in your browser.
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UUID Generator
Generate UUID v4 and v7 values in bulk, then copy or download them — everything runs in your browser.
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