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Best Free Online Security Tools — Password Generators, Hash Tools & More

A guide to the best free security tools on the platform: password generators, hash generators, JWT decoders, and encoding utilities.

Looking for free security tools that run in your browser? Here's a roundup of the best security and encoding tools available on the platform.

Password Generator — Create cryptographically secure passwords with customizable length (8-128 characters) and character types. Uses the Web Crypto API for true randomness.

Password Strength Checker — Analyze any password's strength with entropy calculation, character analysis, and estimated time-to-crack.

Hash Generator — Compute MD5, SHA-1, SHA-256, and SHA-512 hashes from any text. Essential for checksum verification and data integrity.

JWT Decoder — Decode and inspect JSON Web Tokens to view header, payload, and signature. Check expiration claims and token validity.

Base64 Encoder/Decoder — Convert between text and Base64 encoding with full UTF-8 support.

URL Encoder/Decoder — Safely encode text for URLs or decode percent-encoded strings.

All tools are completely free, require no signup, and process everything locally in your browser. No data is ever sent to a server.

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🔐 Security Tools 🧰 All 375+ Tools & Games
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Explore 375+ Free Tools & Games
Password generators, JSON formatters, calculators, color tools, browser games and much more. All client-side — nothing sent to servers.
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