HTMLHash Generator
Generate SHA-1, SHA-256, SHA-384, and SHA-512 hashes from text or files, then export a browser-local checksum verification pack with .env placeholders, SRI strings, and a starter Node verifier. Raw input is not copied into the pack.
Ctrl+Enter to run | Ctrl+K to switch tools | Recent button shows input history
Repeating this work? Turn this kind of browser utility into an API batch, MCP prompt, extension workflow, or shared team recipe.
Buy Pro Browse tool packsFAQ
Is this safe to use with sensitive data?
Yes — hashing runs entirely in your browser via the built-in Web Crypto API. Your input never leaves your machine, and the verification pack copies hashes and byte counts rather than raw text or file contents.
Why is MD5 not included?
MD5 is cryptographically broken and should not be used for security purposes. Use SHA-256 or SHA-512 instead.
Can I hash a file?
Yes — click \"Hash a file…\" and pick any file up to 100 MB. It is hashed locally with the Web Crypto API and never uploaded.
What is in the checksum verification pack?
The pack includes .env.example placeholders, SHA hashes, Subresource Integrity strings for public assets, a starter verify-checksum.mjs script, and release review notes for checking an artifact before handoff.