Bitly vs Sink
Bitly and Sink are both URL shortener software. Bitly is a commercial product from Bitly. Sink is open source under AGPL-3.0, with 7.2k GitHub stars.
Which to pick
- Pick Bitly when
- Marketing teams need branded short links and QR codes with click analytics across campaigns.
- Pick Sink when
- You already use Cloudflare and want branded short links with analytics at near-zero hosting cost.
Side by side
Creates short links and QR codes with click tracking, custom domains and campaign reporting.
A serverless link shortener with click analytics that runs entirely on Cloudflare Workers, KV and Analytics Engine.
The free plan is now tight, and links or QR codes can stop working if a paid plan lapses.
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 Bitly
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.
16k Wikipedia readers a month on phones
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.