Best Developer Directories
Directories and registries in the verified dataset that accept developer tools, libraries and packages.
Introduction
Developer-facing directories are mostly package registries and platform marketplaces rather than business listings. The distinction matters: you do not submit a company to crates.io, you publish an artefact. What is being listed is a library, an extension or an image, and the audience is people who will install it.
That changes what a listing is for. A registry entry is distribution, not marketing.
Evidence base
Evidence base: 31 of 64 verified directories in the PetroHrys dataset accept developer tools. Every figure and table on this page is generated from those records at build time. Fields that were never established are shown as Unknown rather than filled in.
Who should use these
Teams shipping libraries, SDKs, CLI tools, IDE extensions or container images, and companies whose product is consumed by developers.
Comparison
| Directory | Country | Category | Scope | Submission | Verification required | Review system | PetroHrys Score |
|---|---|---|---|---|---|---|---|
| Python Package Index (PyPI) | global | developer | global | Free | Yes | No | 88 |
| Shopify App Store | global | app-directories | global | Unknown | Yes | Yes | 88 |
| WordPress Plugin Directory | global | developer | global | Free | Yes | Yes | 87 |
| crates.io | global | developer | global | Free | Yes | No | 86 |
| GitHub Marketplace | global | developer | global | Unknown | Yes | Unknown | 86 |
| Atlassian Marketplace | global | app-directories | global | Unknown | Yes | Yes | 85 |
| NuGet Gallery | global | developer | global | Free | Yes | No | 85 |
| Packagist.org | global | developer | global | Free | Yes | No | 85 |
| RubyGems.org | global | developer | global | Unknown | Yes | No | 85 |
| Salesforce AppExchange (AgentExchange) | global | app-directories | global | Unknown | Yes | Unknown | 85 |
| Hugging Face | global | developer | global | Freemium | Yes | No | 84 |
| Maven Central | global | developer | global | Free | Yes | No | 84 |
How to read this list
Publishing to a language registry is normally free and fast, and the real work is documentation rather than approval. Platform marketplaces (Atlassian, Salesforce, Shopify) are the opposite: listing is gated by partner processes and review, and pricing is frequently not published.
Frequently asked questions
Do package registries review submissions for quality?
Generally not. Most registries in this dataset accept anything that meets packaging rules; none of them is recorded as performing editorial quality review. That is why a good README or model card matters more than the listing itself.
Related reading
Editorial references
Every directory named on this page has its own page recording what was verified, when, by whom, and from which source. Scoring is documented in How the PetroHrys Score Works, and the verification standard in How Directories Are Verified.