SHA-256 Hash Generator — Free, No Upload, In Your Browser
Generate the SHA-256 hash of any text or file instantly — in your browser, nothing uploaded. Hex (64 chars) and base64 output.
Everything runs in your browser with Web Crypto — your text and files are never uploaded.
Generate a SHA-256 hash of any text or file, free and entirely in your browser. SHA-256 is the most widely used cryptographic hash — for file checksums, integrity verification, blockchain addresses and password hashing inputs — and this tool leads with it, showing the 64-character hexadecimal digest and its base64 form, recomputed live as you type. Because it runs on your browser's Web Crypto API, nothing is uploaded: your input never leaves your device. The output is exactly the standardized value — the SHA-256 of an empty string is always e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855 — so you can trust it against any published checksum. The other algorithms (MD5, SHA-1, SHA-384, SHA-512) are still available below.
FAQ
Generate a SHA-256 hash of any text or file, free and entirely in your browser. SHA-256 is the most widely used cryptographic hash — for file checksums, integrity verification, blockchain addresses and password hashing inputs — and this tool leads with it, showing the 64-character hexadecimal digest and its base64 form, recomputed live as you type. Because it runs on your browser's Web Crypto API, nothing is uploaded: your input never leaves your device. The output is exactly the standardized value — the SHA-256 of an empty string is always e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855 — so you can trust it against any published checksum. The other algorithms (MD5, SHA-1, SHA-384, SHA-512) are still available below.