Developer utilities

Everyday developer helpers: UUID and hash generators, Unix timestamp conversion and case conversion — instant, free and private.

• UUID Generator — A Hundred Ready to Paste Generate up to 100 random UUID v4 identifiers at once, made in your browser, ready for a fixture file, a seed script or a batch of test rows.
• Hash Generator — Check a Fingerprint Matches Hash text with SHA-256, SHA-1 or SHA-512. The same text always gives the same digest, so you can compare yours against the one you were handed.
• Unix Timestamp to Date — Read a Log Line Turn a Unix timestamp into a readable date: ISO 8601, UTC, your local time, seconds, milliseconds and how long ago it was, all at once.
• Date to Unix Timestamp — The Number an API Wants Convert a date to Unix seconds and milliseconds. A date that does not exist is refused, so you never paste a value that quietly slid a month.
• Case Converter — One Name, Every Convention Switch text between camelCase, PascalCase, snake_case, kebab-case and CONSTANT_CASE. Accented and non-Latin letters come through intact.