head to head · open source
nono vs pipelock
nono has 4,841 GitHub stars, 327 forks, 201 open issues and last shipped yesterday. pipelock has 984 stars, 114 forks, 8 open issues and last shipped yesterday. nono leads on adoption by 392% (4,841 vs 984 stars). nono is written in Rust under Apache-2.0; pipelock is written in Go under Apache-2.0. nono has attracted 7% as many forks as stars, pipelock 12%. pipelock was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 5 topic tags (agent-security, ai-agent-security, 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
| nono | pipelock | |
|---|---|---|
| GitHub stars | ★ 4.8K | ★ 984 |
| License | Apache-2.0 | Apache-2.0 |
| Written in | Rust | Go |
| Last push | 2026-11-04 | 2026-11-04 |
| Forks | ⑂ 327 | ⑂ 114 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick nono if
- You weight community size — 4.8K stars and counting
- You want the Apache-2.0 license terms
- Your stack matches Rust
- You value the larger contributor base for long-term maintenance
pick pipelock if
- You want the pipelock feature set and don't need the biggest community
- You prefer the Apache-2.0 license terms
- Your stack matches Go
- You evaluated both and pipelock fits your workflow better
About nono
Built by the team that brought you Sigstore The standard for secure software attestation, used by PyPI, npm, brew, and Maven Central [!NOTE] In the lead up to a 1.0 release, APIs are stabilizing. API changes may still occur where necessary, but will be kept to a minimum. [!IMPORTANT] Organization migration: The official nono registry namespace has moved from always further to nolabs ai . Update any references in your scripts, profiles, and CI. If you already have a pack installed under the old namespace, remove it first before pulling from the new one: The old namespace will be retired — migrate now. Run AI…
About pipelock
Open source AI agent firewall for Verifiable Egress Control . Pipelock sits between AI agents and the network. It inspects mediated HTTP, WebSocket, MCP, and A2A traffic, plus CONNECT tunnel contents when TLS interception is enabled, for secret exfiltration, prompt injection, SSRF, tool poisoning, and risky tool call chains. Plain CONNECT without interception is scanned at the hostname and URL level. Configured MCP upstreams are an exception to private address SSRF blocking: local/private servers are allowed, but cloud metadata endpoints remain blocked. Pipelock emits mediator signed action receipts over content…
read the full pipelock overview →
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Frequently asked questions
Is nono or pipelock more popular?
nono has 4,841 GitHub stars and pipelock has 984. nono has the larger community by that measure.
Are nono and pipelock free?
Both are open source. nono is licensed under Apache-2.0 and pipelock under Apache-2.0. Neither carries a licence fee.
What is the difference between nono and pipelock?
nono is written in Rust and pipelock in Go. The practical differences are community size, licence terms, language stack and release cadence — all compared in the table above.
Which should I choose, nono or pipelock?
Choose nono if you want the larger community (4,841 stars) or its Apache-2.0 licence terms. Choose pipelock if its feature set, stack or Apache-2.0 licence fits better. Both are self-hostable.