# DecompHub

> A catalogue of decompilation, source reconstruction, reimplementation and reverse-engineering projects, with links to upstream repositories and scoped progress evidence.

The public website is at decomphub.com. The searchable catalogue and project records are at app.decomphub.com. Listings are metadata, not mirrors of upstream source code or assets. DecompHub itself is a private commercial application.

Keep upstream descriptions in their original language. Missing progress is unknown, not zero. Percentages refer to the recorded scope, not necessarily whole-project completion. A progress date marked observed is when DecompHub read the source; measured and reported dates come from the publisher. Stars are repository observations, not DecompHub votes. A missing license is not a claim that a project is open source.

## Public data

- [Data format and crawling guide](https://decomphub.com/data): Version 1 contract, pagination, caching and evidence semantics.
- [Paginated catalogue JSON](https://app.decomphub.com/data/catalogue.json): Published listings, including archived projects; follow pagination.nextUrl until null. Each record links to its full JSON and Markdown representations. No authentication or JavaScript is required.

## Guides

- [How to find decompilation projects: the best places to look](https://decomphub.com/guides/finding-decompilation-projects): Find game decompilations, software reimplementations and hardware research using project directories, GitHub searches and official repositories.
- [How to read decompilation progress reports](https://decomphub.com/guides/understanding-decompilation-progress): Understand matching code, function and byte counts, regional builds, asset progress and unknown measurements before comparing projects.
- [How to start contributing to a decompilation project](https://decomphub.com/guides/contributing-to-decompilation): Choose a project, check your build environment and make a useful first contribution through testing, documentation or matching code.
- [How to find decompilation projects on GitHub](https://decomphub.com/guides/finding-decompilation-projects-on-github): Practical GitHub searches for game decompilations, reconstruction projects and continuation forks, with checks for the official repository.
- [Best game decompilation projects to explore](https://decomphub.com/guides/game-decompilation-projects): A practical shortlist of Mario, Zelda, Pokémon and Melee projects, chosen for different learning goals rather than star rankings.
- [Beginner-friendly decompilation projects: where to start](https://decomphub.com/guides/beginner-friendly-decompilation-projects): Choose a first project using setup documentation, task scope and reproducible checks. Find useful work before attempting a difficult matching function.
- [How to find active decompilation projects](https://decomphub.com/guides/finding-active-decompilation-projects): Read repository activity, progress sources and contribution guidance without confusing recent commits, popularity and completion.
- [N64 decompilation projects: a practical directory](https://decomphub.com/guides/n64-decompilation-projects): Find the official Super Mario 64, Ocarina of Time, Majora’s Mask and Paper Mario repositories and distinguish matching work from native ports.
- [Beyond games: software, firmware and system reconstruction](https://decomphub.com/guides/decompilation-beyond-games): Explore compatibility layers, operating systems, firmware and hardware research, with official starting points and the right questions for each.
- [How to find a decompilation of your favorite game](https://decomphub.com/guides/find-decompilation-favorite-game): Search by title, platform and regional release, then distinguish a reconstruction, port, remake or unrelated repository.
- [Decompilation, reimplementation or recompilation?](https://decomphub.com/guides/decompilation-reimplementation-recompilation): Understand what each kind of project produces, how it is validated and which approach fits studying code, compatibility or native play.
- [Localized guides](https://decomphub.com/guides): All eleven articles are available in twelve languages; use the HTML language alternates. Imported project descriptions retain their original language.

## Optional

- [Browse the catalogue](https://app.decomphub.com/explore): Server-rendered search and filters.
- [Listing policy](https://decomphub.com/policy): Catalogue scope and moderation policy.
- [Privacy](https://decomphub.com/privacy): Privacy information.