head to head · open source
Lightpanda vs second-brain
Lightpanda has 40,882 GitHub stars, 1,999 forks, 98 open issues and last shipped yesterday. second-brain has 678 stars, 87 forks, 1 open issues and last shipped 1 months ago. Lightpanda leads on adoption by 5,930% (40,882 vs 678 stars). Lightpanda is written in Zig under AGPL-3.0; second-brain is written in Python under MIT. Lightpanda has attracted 5% as many forks as stars, second-brain 13%. 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 | second-brain | |
|---|---|---|
| GitHub stars | ★ 41K | ★ 678 |
| License | AGPL-3.0 | MIT |
| Written in | Zig | Python |
| Last push | 2026-11-02 | 2026-09-26 |
| Forks | ⑂ 2.0K | ⑂ 87 |
| 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 second-brain if
- You want the second-brain feature set and don't need the biggest community
- You prefer the MIT license terms
- Your stack matches Python
- You evaluated both and second-brain 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 second-brain
Quick install Sponsor Atlas Cloud is a full modal AI inference platform that gives developers a single AI API to access video generation, image generation, and LLM APIs. Instead of managing multiple vendor integrations, you connect once and get unified access to 300+ curated models across all modalities. Check out Atlas Cloud's new coding plan promotion for more budget friendly API access: Second Brain Example For an example of what Second Brain can do, visit It's an interactive art exhibition. Head to Head Evaluation Second Brain performs higher than OpenClaw and Hermes on harness bench, which measures "model…
read the full second-brain overview →
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Frequently asked questions
Is Lightpanda or second-brain more popular?
Lightpanda has 40,882 GitHub stars and second-brain has 678. Lightpanda has the larger community by that measure.
Are Lightpanda and second-brain free?
Both are open source. Lightpanda is licensed under AGPL-3.0 and second-brain under MIT. Neither carries a licence fee.
What is the difference between Lightpanda and second-brain?
Lightpanda is written in Zig and second-brain in Python. 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 second-brain?
Choose Lightpanda if you want the larger community (40,882 stars) or its AGPL-3.0 licence terms. Choose second-brain if its feature set, stack or MIT licence fits better. Both are self-hostable.