head to head · open source
beelzebub vs h5i
beelzebub has 2,180 GitHub stars, 209 forks, 5 open issues and last shipped 6 days ago. h5i has 648 stars, 65 forks, 9 open issues and last shipped today. beelzebub leads on adoption by 236% (2,180 vs 648 stars). beelzebub is written in Go under GPL-3.0; h5i is written in Rust under Apache-2.0. beelzebub has attracted 10% as many forks as stars, h5i 10%. h5i 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
| beelzebub | h5i | |
|---|---|---|
| GitHub stars | ★ 2.2K | ★ 648 |
| License | GPL-3.0 | Apache-2.0 |
| Written in | Go | Rust |
| Last push | 2026-09-14 | 2026-09-20 |
| Forks | ⑂ 209 | ⑂ 65 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick beelzebub if
- You weight community size — 2.2K stars and counting
- You want the GPL-3.0 license terms
- Your stack matches Go
- You value the larger contributor base for long-term maintenance
pick h5i if
- You want the h5i feature set and don't need the biggest community
- You prefer the Apache-2.0 license terms
- Your stack matches Rust
- You evaluated both and h5i fits your workflow better
About beelzebub
Beelzebub is an open source deception runtime framework written in Go and released under GPL 3.0. It operates in the cybersecurity and AI security ecosystem, where teams need controlled systems that attract and record activity aimed at decoy services. The project is a configurable runtime for honeypots, decoys, and agent facing bait tools, with documentation at docs.beelzebub.ai.
read the full beelzebub overview →
About h5i
h5i (pronounced high five) is a lightweight, pure Rust browser built for AI agents to automate web pages and control HTTP traffic directly, so autonomous application testing stays sandboxed, in scope, and auditable.
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Frequently asked questions
Is beelzebub or h5i more popular?
beelzebub has 2,180 GitHub stars and h5i has 648. beelzebub has the larger community by that measure.
Are beelzebub and h5i free?
Both are open source. beelzebub is licensed under GPL-3.0 and h5i under Apache-2.0. Neither carries a licence fee.
What is the difference between beelzebub and h5i?
beelzebub is written in Go and h5i in Rust. The practical differences are community size, licence terms, language stack and release cadence — all compared in the table above.
Which should I choose, beelzebub or h5i?
Choose beelzebub if you want the larger community (2,180 stars) or its GPL-3.0 licence terms. Choose h5i if its feature set, stack or Apache-2.0 licence fits better. Both are self-hostable.