Discover open source.Ship what matters.
40k real open issues, 8.8k archived program projects, 13 open-source programs, one contribution board.




+359Indexed from 364 organizations on GitHub
Issue finder
40k open issues from 290 repositories. Snapshot 2026-10-21.
freeCodeCamp/freeCodeCamp#71203 457.6kGrammar and punctuation errors in the salary tracker workshop
Six tools, one contribution workflow.
Discovery, understanding and tracking, wired to the same GitHub data. Nothing here is a mock.
Search every open issue in the snapshot by keyword, language, organization and label. Beginner-labelled and nobody-assigned are filters, not guesses.
Open ›LiveRead a repository before you touch itEvery project page pulls the README, the guidelines, the open work and the contributor pulse, so you know what you are walking into.
Open ›LiveTrack the 13 programs that payApplication, bonding and coding windows for GSoC, Outreachy, LFX, MLH, FOSSEE and more, on one calendar.
Open ›LiveRun your own contribution deskPin repositories, keep issues in stages from saved to shipped, and watch what changed since you last looked.
Open ›In buildSee who ships, not who shoutsA leaderboard built from merged pull requests, with open PRs and reviews counted separately so one number cannot be gamed.
In buildGet discovered by sponsorsA directory of maintainers who opted in, with their verified public record and their own funding links.
Programs that fund contributors.
13 tracked programs with their application windows. Where a program pays nothing or is a grant for maintainers, the card says so.
Open nowLFX Mentorship
Term 3 running now · Sep – Nov
Cloud & ecosystem mentored projects across Linux Foundation host projects.
Open nowMLH Fellowship
Fall batch in session
A remote, batch-based alternative to internships on real open-source teams.
Open nowGSSoC'26
Contributions Aug – Nov
Three-month open-source contribution sprint, biggest women-led program in India.
Open nowHacktoberfest
All of October · you are here
One month of pull requests, first-timer friendly, the on-ramp for most contributors.
UpcomingOutreachy
Dec cohort pairing opens Nov
Paid remote internships in open source for people from under-represented groups.
UpcomingSeason of KDE
Registrations open December
Winter mentoring program for KDE - design, code, docs, and community work.
Every window, month by month.
Application, selection and coding periods for all 13 programs across 2026.
Google Summer of Code
Outreachy
LFX Mentorship
Eclipse SoC
MLH Fellowship
GSSoC'26
Season of KDE
Summer of Bitcoin
Nexus Spring of Code
Hacktoberfest
24 Pull Requests
FOSSEE Summer Fellowship
Vercel Open Source ProgramSix steps from an empty weekend to merged.
The order a first contribution actually happens in, and the screen on the board that does each part.
Start with the project, not the issue
An issue is only worth taking if the repository behind it is worth a week of your time. Sort the organizations by the things you can actually check.
- Live counts from each organization's public GitHub profile
- Stack, license and how recently the work moved
- No sponsored placement, no ranking you can buy
Pick a step above - the panel on the left is the part that changes.
Most-starred in the catalog.
1.6k repositories indexed by language, topic and stars, refreshed from the GitHub API.

ECC
affaan-mThe agent harness performance optimization system. Skills, instincts, memory, security, and research-first development for Claude Code, Codex, Opencode, Cursor and beyond.

hermes-agent
NousResearchThe agent that grows with you

the-book-of-secret-knowledge
trimstrayA collection of inspiring lists, manuals, cheatsheets, blogs, hacks, one-liners, cli/web tools and more.

deepseek-harness
deepseek-aiDeepSeek Harness: Everything is a Plugin.
Issues and repositories are a snapshot of the GitHub API taken 2026-10-21; the project archive is the 12 program records read on 2026-10-25.
Popular organizations
Hover to pause, click for the full profile with repositories, issues and contributor stats.
GitHubHow people build software.★ 489.6k · 567 repos
The Apache Software FoundationOpen-source organization on GitHub - 3188 public repos.★ 410.1k · 3188 repos
tensorflowOpen-source organization on GitHub - 107 public repos.★ 374.1k · 107 repos
KubernetesProduction-Grade Container Scheduling and Management★ 252.6k · 81 repos
ElectronBuild cross platform desktop apps with JavaScript, HTML, and CSS★ 170.3k · 114 repos
elasticOpen-source organization on GitHub - 967 public repos.★ 158.6k · 967 repos
MozillaThis technology could fall into the right hands.★ 155.2k · 2577 repos
Godot EngineGodot is a popular Free and Open Source game development engine and toolset.★ 145k · 70 repos
HomebrewThe Package Manager for Everywhere★ 130.2k · 29 repos
Neovimhyperextensible Vim-based text editor★ 121.9k · 30 repos
PrometheusOpen-source organization on GitHub - 59 public repos.★ 118.4k · 59 repos
PythonRepositories related to the Python Programming language★ 116.9k · 98 repos
grpcA high performance, open source, general-purpose RPC framework★ 116.3k · 33 repos
webpackOpen-source organization on GitHub - 89 public repos.★ 111.5k · 89 repos
OpenCVOpen-source organization on GitHub - 18 public repos.★ 110.6k · 18 repos
DjangoOpen-source organization on GitHub - 31 public repos.★ 107.4k · 31 repos
GitHubHow people build software.★ 489.6k · 567 repos
The Apache Software FoundationOpen-source organization on GitHub - 3188 public repos.★ 410.1k · 3188 repos
tensorflowOpen-source organization on GitHub - 107 public repos.★ 374.1k · 107 repos
KubernetesProduction-Grade Container Scheduling and Management★ 252.6k · 81 repos
ElectronBuild cross platform desktop apps with JavaScript, HTML, and CSS★ 170.3k · 114 repos
elasticOpen-source organization on GitHub - 967 public repos.★ 158.6k · 967 repos
MozillaThis technology could fall into the right hands.★ 155.2k · 2577 repos
Godot EngineGodot is a popular Free and Open Source game development engine and toolset.★ 145k · 70 repos
HomebrewThe Package Manager for Everywhere★ 130.2k · 29 repos
Neovimhyperextensible Vim-based text editor★ 121.9k · 30 repos
PrometheusOpen-source organization on GitHub - 59 public repos.★ 118.4k · 59 repos
PythonRepositories related to the Python Programming language★ 116.9k · 98 repos
grpcA high performance, open source, general-purpose RPC framework★ 116.3k · 33 repos
webpackOpen-source organization on GitHub - 89 public repos.★ 111.5k · 89 repos
OpenCVOpen-source organization on GitHub - 18 public repos.★ 110.6k · 18 repos
DjangoOpen-source organization on GitHub - 31 public repos.★ 107.4k · 31 repos
Google DeepMindOpen-source organization on GitHub - 410 public repos.★ 99.5k · 410 repos
OWASPThe OWASP Foundation★ 85.2k · 1440 repos
FFmpegOpen-source organization on GitHub - 9 public repos.★ 78.9k · 9 repos
BabelThe community maintained compiler for next generation JavaScript, today.★ 70.4k · 63 repos
GitOpen-source organization on GitHub - 9 public repos.★ 68.2k · 9 repos
Jina AIYour Search Foundation, Supercharged! (acquired by @elastic 2025/10)★ 65.3k · 267 repos
Nix/Nixpkgs/NixOSOpen-source organization on GitHub - 97 public repos.★ 63k · 97 repos
ServoServo aims to empower developers with a lightweight, high-performance alternative for embedding web technologies in applications.★ 55.6k · 193 repos
DiscourseThe 100% open source discussion platform built for the next decade of the Internet.★ 55.1k · 635 repos
Rocket.ChatThe Secure CommsOS™ for mission-critical operations.★ 54.2k · 335 repos
CiliumeBPF-based Networking, Security, and Observability★ 48.6k · 139 repos
LLVMThis is the LLVM organization on GitHub for the LLVM Project: a collection of modular and reusable compiler and toolchain technologies.★ 47.2k · 44 repos
JitsiOpen-source organization on GitHub - 185 public repos.★ 47.1k · 185 repos
QdrantCreating advanced vector search technology★ 44.3k · 133 repos
SalesforceNoteworthy Open Source projects made available by Salesforce. Available under Open Source or Creative Commons licensing. No warranty or support implied★ 43.3k · 424 repos
The Ruby Programming LanguageRepositories related to the Ruby Programming language.★ 39.5k · 191 repos
Google DeepMindOpen-source organization on GitHub - 410 public repos.★ 99.5k · 410 repos
OWASPThe OWASP Foundation★ 85.2k · 1440 repos
FFmpegOpen-source organization on GitHub - 9 public repos.★ 78.9k · 9 repos
BabelThe community maintained compiler for next generation JavaScript, today.★ 70.4k · 63 repos
GitOpen-source organization on GitHub - 9 public repos.★ 68.2k · 9 repos
Jina AIYour Search Foundation, Supercharged! (acquired by @elastic 2025/10)★ 65.3k · 267 repos
Nix/Nixpkgs/NixOSOpen-source organization on GitHub - 97 public repos.★ 63k · 97 repos
ServoServo aims to empower developers with a lightweight, high-performance alternative for embedding web technologies in applications.★ 55.6k · 193 repos
DiscourseThe 100% open source discussion platform built for the next decade of the Internet.★ 55.1k · 635 repos
Rocket.ChatThe Secure CommsOS™ for mission-critical operations.★ 54.2k · 335 repos
CiliumeBPF-based Networking, Security, and Observability★ 48.6k · 139 repos
LLVMThis is the LLVM organization on GitHub for the LLVM Project: a collection of modular and reusable compiler and toolchain technologies.★ 47.2k · 44 repos
JitsiOpen-source organization on GitHub - 185 public repos.★ 47.1k · 185 repos
QdrantCreating advanced vector search technology★ 44.3k · 133 repos
SalesforceNoteworthy Open Source projects made available by Salesforce. Available under Open Source or Creative Commons licensing. No warranty or support implied★ 43.3k · 424 repos
The Ruby Programming LanguageRepositories related to the Ruby Programming language.★ 39.5k · 191 reposWhat builders tell us.
These cards are layout placeholders until we have quotes we can attribute. The faces are AI-generated portraits, not photographs of anyone real, and the mark beside each one is the organization that quote is about - not an endorsement from it.
Frequently asked questions
Where the data comes from, what it can and cannot tell you, and what we do with yours.
How the catalog is builtWhere does the issue data come from?
The GitHub REST and search APIs, called with a server-side token. We index open issues from active repositories on a schedule and store a snapshot, so the counts you see are real but are as of the crawl date shown under the numbers on this page.
Is an issue still available if cyrus lists it?
Not necessarily. We show assignment state, whether the issue is locked, how recently it moved and whether a pull request already points at it, but GitHub is the source of truth. Read the thread and ask the maintainer before you start work.
How is difficulty estimated?
It is an estimate, labelled as one. It weighs the label on the issue, how much of the repository the change is likely to touch and how the project words its contribution guides. It is not a grade and it is not a gate.
What counts toward the leaderboard?
Merged pull requests, open pull requests and reviews are counted separately, over a stated window, from public repositories only. There is no single quality score, because merge volume is not quality and a number that simple would be simple to fake.
Do you handle payments for sponsors?
No. Sponsor profiles link out to the funding provider the developer chooses. cyrus never stores card details and never takes a cut, so there is no payment surface to secure.
What happens to my private repositories?
Nothing is fetched without your GitHub authorisation, private data stays out of public pages and shared outputs, and the token used for indexing never ships to the browser. Repository contents are treated as untrusted input: cyrus reads them, it does not run them.
Is cyrus free, and do I need an account?
Browsing programs, organizations, projects and issues is open with no account. Signing in adds your saved shortlist and dashboard. The catalog is open source under the terms in the repository.
Stop hunting for projects.
Start shipping them.
Sign in with GitHub, save the issues and repositories worth your week, and let the dashboard keep track of what moved.
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