head to head · open source
shannon vs nono
shannon has 50,964 GitHub stars, 5,926 forks, 18 open issues and last shipped 7 days ago. nono has 4,806 stars, 326 forks, 201 open issues and last shipped yesterday. shannon leads on adoption by 960% (50,964 vs 4,806 stars). shannon is written in TypeScript under AGPL-3.0; nono is written in Rust under Apache-2.0. shannon has attracted 12% as many forks as stars, nono 7%. nono was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 1 topic tag (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
| shannon | nono | |
|---|---|---|
| GitHub stars | ★ 51K | ★ 4.8K |
| License | AGPL-3.0 | Apache-2.0 |
| Written in | TypeScript | Rust |
| Last push | 2026-10-27 | 2026-11-02 |
| Forks | ⑂ 5.9K | ⑂ 326 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick shannon if
- You weight community size — 51K stars and counting
- You want the AGPL-3.0 license terms
- Your stack matches TypeScript
- You value the larger contributor base for long-term maintenance
pick nono if
- You want the nono 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 nono fits your workflow better
About shannon
[!NOTE] Shannon 3.0 is live: deeper security code analysis, more thoroughly vetted findings, a rebuilt CLI, native CI/CD, professional PDF reports, and SARIF. Shannon is an autonomous, AI pentester for web applications and APIs. It analyzes your source code, identifies attack paths, and executes real exploits to prove vulnerabilities before they reach production. No exploit, no report. This repository is Shannon Open Source: the full agent, run locally from your command line. Launch Shannon The interactive launcher will guide you through setup and your first pentest. [!TIP] AI agents and LLMs: start with…
read the full shannon overview →
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…
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Frequently asked questions
Is shannon or nono more popular?
shannon has 50,964 GitHub stars and nono has 4,806. shannon has the larger community by that measure.
Are shannon and nono free?
Both are open source. shannon is licensed under AGPL-3.0 and nono under Apache-2.0. Neither carries a licence fee.
What is the difference between shannon and nono?
shannon is written in TypeScript and nono 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, shannon or nono?
Choose shannon if you want the larger community (50,964 stars) or its AGPL-3.0 licence terms. Choose nono if its feature set, stack or Apache-2.0 licence fits better. Both are self-hostable.