head to head · open source
Lightpanda vs lowdefy
Lightpanda has 40,882 GitHub stars, 1,999 forks, 98 open issues and last shipped yesterday. lowdefy has 3,018 stars, 188 forks, 71 open issues and last shipped yesterday. Lightpanda leads on adoption by 1,255% (40,882 vs 3,018 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 | ★ 41K | ★ 3.0K |
| License | AGPL-3.0 | Apache-2.0 |
| Written in | Zig | JavaScript |
| Last push | 2026-11-02 | 2026-11-02 |
| Forks | ⑂ 2.0K | ⑂ 188 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick Lightpanda if
- You weight community size — 41K 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 Browser The headless browser built from scratch for AI agents and automation. Not a Chromium fork. Not a WebKit patch. A new browser, written in Zig.   Benchmarks Requesting 933 real web pages over the network on a AWS EC2 m5.large instance. See benchmark details. Quick start Install Package Managers Latest nightly from Homebrew: Latest nightly from Arch Linux User Repository: Download from the nightly builds You can download the last binary from the nightly builds for Linux and MacOS for both x86 64 and aarch64. For Linux Verify the binary before running anything: Linux aarch64 is also available…
read the full Lightpanda overview →
About lowdefy
Lowdefy The Config First Web Stack for AI and Humans Build apps that AI can generate, humans can review, and teams can maintain. Config that works between code and natural language. Why config first matters in the age of AI AI writes code fast, but the maintenance doesn't scale. LLMs generate thousands of lines that are hard to review, inconsistent across sessions, and full of hidden vulnerabilities. Lowdefy solves this: 50 lines of config vs 500 lines of code — AI generates concise, reviewable config instead of sprawling React components. Schema validated, no arbitrary code paths — Every property validated…
read the full lowdefy overview →
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Frequently asked questions
Is Lightpanda or lowdefy more popular?
Lightpanda has 40,882 GitHub stars and lowdefy has 3,018. 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 (40,882 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.