Short.io vs Sink
Short.io and Sink are both URL shortener software. Short.io is a commercial product from Short.io. Sink is open source under AGPL-3.0, with 7.2k GitHub stars.
Which to pick
- Pick Short.io when
- A small business wants branded short links on its own domain at low or no cost.
- Pick Sink when
- You already use Cloudflare and want branded short links with analytics at near-zero hosting cost.
Side by side
A link shortener with custom branded domains, analytics, QR codes and an API, free for up to 1,000 links.
A serverless link shortener with click analytics that runs entirely on Cloudflare Workers, KV and Analytics Engine.
A small vendor, and analytics are simpler than on the larger marketing platforms.
Tied to Cloudflare, pre-1.0, and AGPL licensed.
Production-ready
Usable
Cloud service (both)
Not published
TypeScript, Vue, Nuxt and Cloudflare Workers
Closed source, sold by Short.io
Open source, AGPL-3.0 (network copyleft)
Closed source: you use it under the maker's terms and cannot change or resell the code.
Use inside your business is unrestricted. If you change it and let customers use it over the internet, you must publish your changes.
No Wikipedia article of its own
7.2k GitHub stars
Not known
Established: started 2 years ago, latest release v0.3.1.
Other comparisons
More URL shorteners
Both sides were judged on 2026-11-03 from makers' descriptions, Wikipedia, READMEs and GitHub data. License, age and popularity lines are worked out directly.