head to head · open source
ProjectDiscovery vs nomore403
ProjectDiscovery has 32,543 GitHub stars, 3,962 forks, 107 open issues and last shipped yesterday. nomore403 has 1,915 stars, 223 forks, 2 open issues and last shipped 4 days ago. ProjectDiscovery leads on adoption by 1,599% (32,543 vs 1,915 stars). ProjectDiscovery is written in Go under MIT; nomore403 is written in Go under MIT. ProjectDiscovery has attracted 12% as many forks as stars, nomore403 12%. ProjectDiscovery 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
| ProjectDiscovery | nomore403 | |
|---|---|---|
| GitHub stars | ★ 33K | ★ 1.9K |
| License | MIT | MIT |
| Written in | Go | Go |
| Last push | 2026-11-02 | 2026-10-30 |
| Forks | ⑂ 4.0K | ⑂ 223 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick ProjectDiscovery if
- You weight community size — 33K stars and counting
- You want the MIT license terms
- Your stack matches Go
- You value the larger contributor base for long-term maintenance
pick nomore403 if
- You want the nomore403 feature set and don't need the biggest community
- You prefer the MIT license terms
- Your stack matches Go
- You evaluated both and nomore403 fits your workflow better
About ProjectDiscovery
English • 中文 • Korean • Indonesia • Spanish • 日本語 • Portuguese • Türkçe Nuclei is a modern, high performance vulnerability scanner that leverages simple YAML based templates. It empowers you to design custom vulnerability detection scenarios that mimic real world conditions, leading to zero false positives. Simple YAML format for creating and customizing vulnerability templates. Contributed by thousands of security professionals to tackle trending vulnerabilities. Reduce false positives by simulating real world steps to verify a vulnerability. Ultra fast parallel scan processing and request clustering. Integrate…
read the full ProjectDiscovery overview →
About nomore403
NoMore403 nomore403 is a command line tool for testing HTTP access control bypasses and parser inconsistencies around 401 , 403 , and related responses. The tool is designed for practical web security work: bug bounty, penetration testing, security reviews, and regression testing of access control rules. It automates a broad set of request mutations, captures a baseline, filters common false positives, and highlights the responses most likely to represent a meaningful bypass. What It Does Given a target URL, nomore403 : 1. Sends a baseline request to capture the blocked response. 2. Optionally auto calibrates…
read the full nomore403 overview →
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Frequently asked questions
Is ProjectDiscovery or nomore403 more popular?
ProjectDiscovery has 32,543 GitHub stars and nomore403 has 1,915. ProjectDiscovery has the larger community by that measure.
Are ProjectDiscovery and nomore403 free?
Both are open source. ProjectDiscovery is licensed under MIT and nomore403 under MIT. Neither carries a licence fee.
What is the difference between ProjectDiscovery and nomore403?
ProjectDiscovery is written in Go and nomore403 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, ProjectDiscovery or nomore403?
Choose ProjectDiscovery if you want the larger community (32,543 stars) or its MIT licence terms. Choose nomore403 if its feature set, stack or MIT licence fits better. Both are self-hostable.