Dev
Hash Generator
Generate cryptographic hashes of any text using SHA-1, SHA-256, SHA-384, or SHA-512. Powered by the Web Crypto API.
Algorithms
Frequently asked questions
What's the difference between SHA-1, SHA-256, SHA-384, and SHA-512?
They differ in security strength and output length. SHA-256 (256-bit, 64 hex chars) is the current standard. SHA-1 is deprecated for security reasons. SHA-384 and SHA-512 offer stronger security with longer outputs. All are part of the SHA-2 family except SHA-1.
Is this secure?
Hashing happens entirely in your browser using the Web Crypto API (crypto.subtle.digest). No data is sent to any server. The hashes are computed locally with the browser's native cryptographic implementation.
Is SHA-256 the same as what Bitcoin uses?
Bitcoin uses SHA-256d — double SHA-256 (hashing the hash again). This tool computes a single pass of each algorithm. For Bitcoin-style hashes, you'd run SHA-256 twice, which this tool can do manually.
Generate cryptographic hash values for any text input using industry-standard algorithms. Choose from SHA-1, SHA-256, SHA-384, or SHA-512 — or select multiple at once for comparison.
Uses the Web Crypto API (crypto.subtle.digest) for native, secure hashing. Perfect for verifying file integrity checksums, creating password hashes for development, or understanding how hash functions work. All processing stays in your browser.