Are these security tools really safe to use?
Yes. All processing happens in your browser using the Web Crypto API. Your data never touches our servers. You can verify this by checking the Network tab in DevTools.
Free Online Security Tools — Client-Side & Private
Generate cryptographic hashes and secure passwords directly in your browser. No server-side processing means your sensitive data — passwords, hashes, file checksums — stays on your device.
2 Security Tools — Fully Client-Side
Why Client-Side Security Tools?
Zero Server Exposure
Passwords and file hashes you generate never leave your browser. Many online security tools send your data to a backend for processing — ByteBox uses the Web Crypto API to keep everything local.
Instant, No Round-Trips
Hashes generate in milliseconds. Password strength updates as you toggle options. No waiting for a server response — the result appears as soon as you change a setting.
Cryptographically Secure
The password generator uses window.crypto.getRandomValues() — the same CSPRNG browsers use for TLS. The hash tool uses the native SubtleCrypto API for SHA and a battle-tested JS implementation for MD5.
Frequently Asked Questions
Can I hash files with ByteBox?
Yes. The Hash Generator supports file hashing for MD5, SHA-1, SHA-256, and SHA-512. Simply switch to the File tab, drop your file, and the hash is computed locally using array buffers.
What hash algorithm should I use?
SHA-256 is the current industry standard. Use SHA-512 for high-security environments. MD5 and SHA-1 are available for legacy compatibility but should not be used for security-critical applications.
What other ByteBox tools relate to security?
ByteBox also offers a JWT Decoder for inspecting authentication tokens and a Base64 Encoder/Decoder for safe binary-to-text transport.