URL Shorteners — entry 006 of 14
Kutt
Kutt is a free, open-source, self-hostable URL shortener supporting custom domains, link expiration, password protection, and per-link statistics. The public instance and REST API live at kutt.to (authenticated with an X-API-Key header), and the AGPL-licensed codebase can be self-hosted for full control. Note that the old kutt.it domain is no longer operated by the project — its maintainers warn it may now be a phishing site — so integrations should target kutt.to.
AuthenticationAPI KeySign up with the provider to obtain credentials.
HTTPSSupportedTraffic is encrypted in transit.
CORSEnabledCallable directly from browser JavaScript.
PricingFreeNo paid tier — free for the documented use case.
FormatsJSONResponses can be requested as JSON.
GreatAPIs Score
Score78
Authentication15/25API key required
Pricing20/20Free to use
Docs14/20Documentation URL provided
Formats9/15Single response format
Freshness20/20Verified within 6 months
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<a href="https://greatapis.com/api/kutt/"><img src="https://greatapis.com/badge/kutt.svg" alt="Scored 78 on greatapis.com"></a>Auth quickstart
- Sign up with the provider to get an API key.
- Send it on every request as a header
Authorization: <key> - The exact header isn't documented — Authorization is a common default; confirm in the provider's docs.
Stored keyNo key stored
Your key is stored only in this browser (localStorage) and sent directly to the API — never to greatapis.