head to head · open source
Lightpanda vs lowdefy
Lightpanda has 35,409 GitHub stars, 1,680 forks, 98 open issues and last shipped yesterday. lowdefy has 3,007 stars, 185 forks, 71 open issues and last shipped yesterday. Lightpanda leads on adoption by 1,078% (35,409 vs 3,007 stars). Lightpanda is written in Zig under AGPL-3.0; lowdefy is written in JavaScript under Apache-2.0. Lightpanda has attracted 5% as many forks as stars, lowdefy 6%. Lightpanda 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
| Lightpanda | lowdefy | |
|---|---|---|
| GitHub stars | ★ 35K | ★ 3.0K |
| License | AGPL-3.0 | Apache-2.0 |
| Written in | Zig | JavaScript |
| Last push | 2026-09-17 | 2026-09-17 |
| Forks | ⑂ 1.7K | ⑂ 185 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick Lightpanda if
- You weight community size — 35K stars and counting
- You want the AGPL-3.0 license terms
- Your stack matches Zig
- You value the larger contributor base for long-term maintenance
pick lowdefy if
- You want the lowdefy feature set and don't need the biggest community
- You prefer the Apache-2.0 license terms
- Your stack matches JavaScript
- You evaluated both and lowdefy fits your workflow better
About Lightpanda
Lightpanda is a headless browser built from scratch in Zig, designed specifically for AI agents and automation tasks. It is not a fork of Chromium or WebKit but a new implementation targeting performance and efficiency in automated web interactions. It lives in the browser automation ecosystem, competing with tools like Puppeteer and Playwright that typically rely on Chromium based headless modes.
read the full Lightpanda overview →
About lowdefy
Lowdefy is an Apache 2.0 JavaScript framework that builds full stack web apps — internal tools, admin panels, dashboards, and CRUD apps — from schema validated YAML config instead of hand written React, for teams that want AI to generate the app while humans review and maintain it.
read the full lowdefy overview →
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Frequently asked questions
Is Lightpanda or lowdefy more popular?
Lightpanda has 35,409 GitHub stars and lowdefy has 3,007. Lightpanda has the larger community by that measure.
Are Lightpanda and lowdefy free?
Both are open source. Lightpanda is licensed under AGPL-3.0 and lowdefy under Apache-2.0. Neither carries a licence fee.
What is the difference between Lightpanda and lowdefy?
Lightpanda is written in Zig and lowdefy in JavaScript. The practical differences are community size, licence terms, language stack and release cadence — all compared in the table above.
Which should I choose, Lightpanda or lowdefy?
Choose Lightpanda if you want the larger community (35,409 stars) or its AGPL-3.0 licence terms. Choose lowdefy if its feature set, stack or Apache-2.0 licence fits better. Both are self-hostable.