#️⃣ Hash Generator

Generate MD5, SHA-1, SHA-256, and SHA-512 hashes. Free, instant, 100% private — all processing happens in your browser.

Input text

Or hash a file:

📁 Drop file here or

About Hash Functions

A hash function takes input data and produces a fixed-size string of bytes. The same input always produces the same hash, but even a tiny change produces a completely different hash.

Algorithms

Algorithm	Bits	Security	Use Case
MD5	128	Broken	Checksums, non-security use only
SHA-1	160	Weak	Git commits, legacy compatibility
SHA-256	256	Secure	Passwords, digital signatures, blockchain
SHA-512	512	Secure	High-security, password hashing

⚠️ Important: MD5 and SHA-1 are not secure for cryptographic purposes. Use SHA-256 or SHA-512 for security-sensitive applications.

🔒 All hashing happens in your browser via the Web Crypto API. Your data never leaves your device.

About Hash Generator

Generate cryptographic hashes from text or files. Supports MD5, SHA-1, SHA-256, SHA-384, and SHA-512. Verify file integrity, hash passwords, and generate checksums. All in your browser.

5 Hash Algorithms

MD5, SHA-1, SHA-256, SHA-384, SHA-512. Choose based on security needs — SHA-256 for general use.

File Hashing

Generate checksums for files. Verify downloads, detect corruption, and compare file versions.

HMAC Support

Keyed-hash message authentication with secret key. Used for API signing and message verification.

Browser-Side Security

All hashing runs locally in your browser. Sensitive data never leaves your device. No server uploads.

📋 Common Use Cases

Verifying File Integrity

Generate a SHA-256 hash of a downloaded file and compare it against the publisher's checksum to confirm it hasn't been tampered with.

Hashing Passwords for Testing

Produce quick MD5 or SHA hashes of test passwords during development of authentication systems without spinning up a backend.

Comparing Two Files

Generate hashes of two files to quickly determine whether their contents are identical without reading through them manually.

Generating API Signatures

Create SHA-256 hashes of request payloads combined with a secret key to generate HMAC-style signatures for API authentication.

🪜 How to Use This Tool

Select hash algorithm
Choose from MD5, SHA-1, SHA-256, or SHA-512 depending on your security or compatibility requirements.

Enter text or upload a file
Type the string you want to hash in the input box or upload a file to compute its checksum.

View the hash result
See the computed hexadecimal hash value displayed instantly with a convenient copy button.

Switch algorithms to compare
Toggle between hash types to see how the same input produces different-length outputs across algorithms.

Frequently Asked Questions

Are these dev tools free?▼

Yes. All dev tools are completely free. No signup, no account.

Is my data sent to a server?▼

No. Base64 encoding, URL encoding, JWT decoding, hash generation, and regex testing all happen in your browser. Your tokens and secrets stay on your device.

Can I decode JWTs safely?▼

Yes. JWT decoding happens entirely in your browser. The token never leaves your device. Only the header and payload are decoded — signatures are not verified server-side.