Cron Generator
Build crontab schedules visually instead of recalling the field syntax.
Compute MD5, SHA-1, SHA-256 and SHA-512 digests of any text.
MD5, SHA1, SHA256 and SHA512 digests computed locally; the implementation is diff-tested against Node crypto so the results match other tools.
Shows MD5, SHA1, SHA256 and SHA512 at once, so there is no switching algorithms one by one.
Computed locally, and the implementation is diff-tested against Node crypto so the values match other tools.
Useful for checking whether a piece of text has changed since you last saw it.
Type or paste the text
All four digests update as you type.
Compare with a known value
Paste the digest a server or release page gave you; identical means unchanged.
Copy a digest
Click any row to copy that algorithm lower-case hex output.
They still compute, but not for security — practical collisions exist. Use SHA256 or above for integrity.
This tool takes text input. For files use sha256sum, shasum or your system file-check command.
Build crontab schedules visually instead of recalling the field syntax.
Produce a .gitignore suited to your stack instead of copying one from memory.
Mint signed JSON Web Tokens for testing authentication flows.
Generate random v4 UUIDs in bulk for fixtures and test data.
Generate compact, URL-safe random identifiers.
Generate sortable unique IDs that preserve creation order.
Test and debug regular expressions with live match highlighting.
Build a robots.txt that tells crawlers what to index and what to skip.