CleanURI vs Rebrandly

CleanURI is a minimal, free URL shortener with a single documented endpoint: POST /api/v1/shorten takes a (URL-encoded) long URL and returns a short cleanuri.com link as JSON. It needs no account or API key, making it one of the simplest shorteners to call programmatically, though it offers no analytics, custom aliases, or link management beyond creation.

Rebrandly specializes in branded short links on your own custom domain, aimed at marketing and brand-consistent link sharing. Its REST API uses an apikey header and covers link creation, custom slashtags, tags, domains, and click analytics, returning JSON. A free tier allows a capped number of branded links per month, with paid Starter, Pro, and Enterprise plans scaling link volume, domains, and team features.