SHA Hash Generator
Generate SHA-1, SHA-256, SHA-384, or SHA-512 hashes from text. Uses the Web Crypto API in your browser—nothing is sent to a server.
About this SHA Hash Generator
Generate SHA-1, SHA-256, SHA-384, and SHA-512 cryptographic hashes from any text or string. SHA (Secure Hash Algorithm) produces a fixed-length fingerprint that changes completely when the input changes even slightly, making it ideal for checksums, integrity verification, and digital signatures. Our tool uses the Web Crypto API in your browser so your data never leaves your device—no server uploads, no logging. Developers use SHA hashes to verify file downloads, validate API payloads, and implement content-addressable storage. Choose the algorithm that fits your needs: SHA-256 is the most widely recommended for general use; SHA-512 offers stronger security for sensitive applications.
Key Features
Support for SHA-1, SHA-256, SHA-384, and SHA-512 algorithms
Uses the Web Crypto API—industry-standard cryptography in the browser
No data sent to any server; all hashing happens locally
One-click copy of the generated hash to clipboard
Works in all modern browsers without plugins
Handles Unicode and long text inputs
How to Use
Select the hash algorithm (SHA-1, SHA-256, SHA-384, or SHA-512) from the dropdown
Type or paste the text you want to hash into the input field
Click "Generate hash" to compute the hash value
Copy the result with the copy button for use in your project or verification
Popular Use Cases
Verify file integrity by comparing hashes before and after download
Generate checksums for configuration files or data payloads
Create content hashes for caching or deduplication in applications
Test and debug code that uses SHA hashes (e.g., API signatures or commit IDs)
Tips & Best Practices
Use SHA-256 or SHA-512 for new projects; SHA-1 is considered weak for security-sensitive uses.
For password storage, use a dedicated key-derivation function like bcrypt or Argon2, not raw SHA.
Hash values are deterministic: the same input always produces the same hash.
Frequently Asked Questions
Is my text sent to a server?
No. Hashing uses the Web Crypto API in your browser. Nothing is uploaded or stored.
Should I use SHA for passwords?
For password storage use a dedicated tool like bcrypt or Argon2. SHA is better for checksums and integrity verification.
What is the difference between SHA-256 and SHA-512?
SHA-256 produces a 256-bit (64 hex character) hash; SHA-512 produces a 512-bit (128 hex character) hash. SHA-512 is stronger but slightly slower. Both are secure for most use cases.
Can I hash binary data or files?
This tool hashes text you paste. For files, use a checksum utility (e.g., sha256sum) or a file-hash tool that reads binary content.