A free edge API by formatho.com, privacy-first developer tools.
Free, no signup, runs entirely in your browser — your data never leaves your device.
curl "https://random-string-formatho.filesformatho.workers.dev/api?length=32&charset=alphanumeric"
curl "https://random-string-formatho.filesformatho.workers.dev/api?length=6&charset=numeric"
Full parameter reference and live response: /api endpoint.
Prefer a UI? Use the complete client-side version — your data never even leaves your browser: Random String Generator Online on formatho.com.
Browse every free Formatho Worker tool on the Formatho Tools index.