head to head · open source
open-kritt vs hol-guard
open-kritt has 2,413 GitHub stars, 408 forks, 7 open issues and last shipped 3 days ago. hol-guard has 1,062 stars, 239 forks, 94 open issues and last shipped yesterday. open-kritt leads on adoption by 127% (2,413 vs 1,062 stars). open-kritt is written in JavaScript under AGPL-3.0; hol-guard is written in Rust under Apache-2.0. open-kritt has attracted 17% as many forks as stars, hol-guard 23%. hol-guard was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 2 topic tags (ai-agents, ai-security), so they are genuine substitutes rather than adjacent tools.
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
| open-kritt | hol-guard | |
|---|---|---|
| GitHub stars | ★ 2.4K | ★ 1.1K |
| License | AGPL-3.0 | Apache-2.0 |
| Written in | JavaScript | Rust |
| Last push | 2026-11-02 | 2026-11-04 |
| Forks | ⑂ 408 | ⑂ 239 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick open-kritt if
- You weight community size — 2.4K stars and counting
- You want the AGPL-3.0 license terms
- Your stack matches JavaScript
- You value the larger contributor base for long-term maintenance
pick hol-guard if
- You want the hol-guard 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 hol-guard fits your workflow better
About open-kritt
open·kritt Orchestrate AI agents to find real vulnerabilities in code. An open source, self hosted security and vulnerability research platform that turns focused AI analysis into de duplicated, ranked findings with configurable validation and enrichment. Website · Documentation · Getting started · Contributing · Owners · Research paper What is open·kritt? Pointing a model at an entire repository and asking it to find vulnerabilities rarely works well. open·kritt takes a focused approach: break the research into small, well defined tasks, run them across AI agents in parallel, and combine their output into…
read the full open-kritt overview →
About hol-guard
HOL Guard: Open Source Antivirus for AI Agents HOL Guard reviews agent actions before they run: shell commands, file access, package installs, and MCP tool calls. It detects secret exposure, destructive operations, prompt injection, and supply chain risks, then allows, blocks, or requests approval according to your policy. Run it locally without an account. Use the CLI and local dashboard to manage protection, resolve approvals, and inspect decision history. Optional Guard Cloud adds shared history, team policy, and fleet management. Get started · Supported agents · Plugin scanner · Documentation · Contribute an…
read the full hol-guard overview →
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Frequently asked questions
Is open-kritt or hol-guard more popular?
open-kritt has 2,413 GitHub stars and hol-guard has 1,062. open-kritt has the larger community by that measure.
Are open-kritt and hol-guard free?
Both are open source. open-kritt is licensed under AGPL-3.0 and hol-guard under Apache-2.0. Neither carries a licence fee.
What is the difference between open-kritt and hol-guard?
open-kritt is written in JavaScript and hol-guard 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, open-kritt or hol-guard?
Choose open-kritt if you want the larger community (2,413 stars) or its AGPL-3.0 licence terms. Choose hol-guard if its feature set, stack or Apache-2.0 licence fits better. Both are self-hostable.