head to head · open source
Zen Browser vs Requestly
Zen Browser has 45,517 GitHub stars, 1,946 forks, 689 open issues and last shipped yesterday. Requestly has 6,761 stars, 685 forks, 274 open issues and last shipped yesterday. Zen Browser leads on adoption by 573% (45,517 vs 6,761 stars). Zen Browser is written in C++ under MPL-2.0; Requestly is written in various languages under a custom or non-standard licence. Zen Browser has attracted 4% as many forks as stars, Requestly 10%. Zen Browser was the more recently maintained of the two, and both are self-hostable with no licence fee.
Two open source projects, one decision. Both are free and self-hostable — the differences are community size, license terms, language stack and release pace.
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Side by side
| Zen Browser | Requestly | |
|---|---|---|
| GitHub stars | ★ 46K | ★ 6.8K |
| License | MPL-2.0 | Custom / other |
| Written in | C++ | — |
| Last push | 2026-11-02 | 2026-11-02 |
| Forks | ⑂ 1.9K | ⑂ 685 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick Zen Browser if
- You weight community size — 46K stars and counting
- You want the MPL-2.0 license terms
- Your stack matches C++
- You value the larger contributor base for long-term maintenance
pick Requestly if
- You want the Requestly feature set and don't need the biggest community
- You prefer the Custom / other license terms
- You evaluated both and Requestly fits your workflow better
About Zen Browser
Zen Browser Zen is a firefox based browser with the aim of pushing your productivity to a new level! Download • Website • Documentation • Release Notes Firefox Versions Release Is currently built using Firefox version 155.0.1 ! Twilight Is currently built using Firefox version RC 155.0.1 ! Contributing If you'd like to report a bug, please do so on our GitHub Issues page and for feature requests, you can use GitHub Discussions. Zen is an open source project, and we welcome contributions from the community! Please take a look at the contribution guidelines before getting started! Partners Thanks to all the…
read the full Zen Browser overview →
About Requestly
Requestly API Client Design, Build & Test APIs all in one place. Design, build, and test APIs your way. Git native by default, sync instantly with Team Projects, or self host with enterprise grade security. No cloud lock in. Download · Documentation · Report a bug · Community Why developers pick Requestly API Client 🔒 Complete Data Sovereignty: Choose local, team sync, or self hosted. Your data never leaves your control. 💸 Predictable, Flat Pricing: Free for up to 10 collaborators. Enterprise governance without hidden add ons. ⚡ Lightweight & Developer First: Open. Hit endpoint. Get response. No bloat, no lag…
read the full Requestly overview →
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Frequently asked questions
Is Zen Browser or Requestly more popular?
Zen Browser has 45,517 GitHub stars and Requestly has 6,761. Zen Browser has the larger community by that measure.
Are Zen Browser and Requestly free?
Both are open source. Zen Browser is licensed under MPL-2.0, and Requestly has no licence declared in this registry. Both are free to self-host.
What is the difference between Zen Browser and Requestly?
Zen Browser is written in C++ and Requestly in various languages. The practical differences are community size, licence terms, language stack and release cadence — all compared in the table above.
Which should I choose, Zen Browser or Requestly?
Choose Zen Browser if you want the larger community (45,517 stars) or its MPL-2.0 licence terms. Choose Requestly if its feature set, stack or Custom / other licence fits better. Both are self-hostable.