Free Online Security Tools
Free online security and cryptography tools. Generate hashes, passwords, JWT tokens, and encrypt files — all in-browser.
8 tools available
MD5 Generator
Generate MD5 hash from text or files
SHA256 Hash Generator
Generate SHA256 hashes
SHA512 Hash Generator
Generate SHA512 hashes
JWT Decoder
Decode JWT tokens
Password Generator
Generate secure passwords
JWT Generator
Generate JWT tokens with HS256
ENV Diff Comparator
Compare, audit & merge .env files with secret detection
ZIP with Password
Compress & encrypt files locally — no upload, no server.
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About Free Online Security Tools
Free online security and cryptography tools. Generate hashes, passwords, JWT tokens, and encrypt files — all in-browser. All tools are 100% free, work entirely in your browser for maximum privacy, and require no installation or sign-up. Whether you're debugging, converting data formats, or generating code, our free online security tools help you work faster and smarter.
Why Choose Our Tools?
- Privacy-First: All processing happens in your browser — no data leaves your device.
- Instant Results: Client-side processing means zero server delays.
- No Sign-Up: Start using any tool immediately, no registration required.
- Multilingual: Available in 10 languages for developers worldwide.