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1,526 open-source projects with open good first issues, scored on how welcoming they are to a first PR. Say what you like: a language, a field, fast maintainers.

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1,526 projects

by best score

JuliaLang/julia
The Julia Programming Language
64good first issues+92 contributions welcome
- Julia
- Field: Scientific Computing
- Field: Compilers
- Stars:49.2K
- committed 3h ago
- MIT
- CONTRIBUTING
- replies in ~8h
Score99 out of 100 contributor score, very welcomingFirst-PR friendly
bevyengine/bevy
A refreshingly simple data-driven game engine built in Rust
55good first issues
- Rust
- Field: Game Dev
- Stars:48.5K
- committed 13h ago
- Apache-2.0
- CONTRIBUTING
- replies in ~2h
Score99 out of 100 contributor score, very welcomingFirst-PR friendly
FreeCAD/FreeCAD
Official source code of FreeCAD, a free and opensource multiplatform 3D parametric modeler.
153good first issues+141 contributions welcome
- C++
- Field: OS
- Field: Graphics
- Stars:33.9K
- committed 1h ago
- LGPL-2.1
- CONTRIBUTING
- replies in ~12h
Score99 out of 100 contributor score, very welcomingFirst-PR friendly
kestra-io/kestra
Event Driven Orchestration & Scheduling Platform for Mission Critical Applications
112good first issues
- Java
- Field: DevOps
- Field: Data Science
- Stars:28.5K
- committed just now
- Apache-2.0
- CONTRIBUTING
- replies in ~14h
Score99 out of 100 contributor score, very welcomingFirst-PR friendly
apache/airflow
Apache Airflow - A platform to programmatically author, schedule, and monitor workflows
135good first issues
- Python
- Field: Data Science
- Field: Machine Learning
- Stars:47K
- committed just now
- Apache-2.0
- CONTRIBUTING
- replies in ~48m
Score98 out of 100 contributor score, very welcomingFirst-PR friendly
topoteretes/cognee
Cognee is the open-source AI memory platform for agents. Give your AI agents persistent long-term memory with…
59good first issues+2 contributions welcome
- Python
- Field: Machine Learning
- Field: Databases
- Stars:31.2K
- committed 11h ago
- Apache-2.0
- CONTRIBUTING
- replies in ~23h
Score98 out of 100 contributor score, very welcomingFirst-PR friendly
symfony/symfony
The Symfony PHP framework
43good first issues+49 contributions welcome
- PHP
- Field: Backend
- Stars:31.2K
- committed just now
- MIT
- CONTRIBUTING
- replies in ~48m
Score98 out of 100 contributor score, very welcomingFirst-PR friendly
organicmaps/organicmaps
🍃 Organic Maps is a free Android & iOS offline maps app for more than 6M travelers, tourists, hikers, and…
172good first issues
- C++
- Field: Mobile
- Stars:15.5K
- committed 13h ago
- CONTRIBUTING
- replies in ~4h
Score98 out of 100 contributor score, very welcomingFirst-PR friendly
nextcloud/server
☁️ Nextcloud server, a safe home for all your data
65good first issues+14 contributions welcome
- PHP
- Field: DevOps
- Stars:37K
- committed just now
- AGPL-3.0
- CONTRIBUTING
- replies in ~16h
Score97 out of 100 contributor score, very welcomingFirst-PR friendly
CleverRaven/Cataclysm-DDA
Cataclysm - Dark Days Ahead. A turn-based survival game set in a post-apocalyptic world.
55good first issues+89 contributions welcome
- C++
- Field: Game Dev
- Stars:13.3K
- committed 4h ago
- CONTRIBUTING
- replies in ~4h
Score97 out of 100 contributor score, very welcomingFirst-PR friendly
wesnoth/wesnoth
An open source, turn-based strategy game with a high fantasy theme.
73good first issues
- C++
- Field: Game Dev
- Stars:6.9K
- committed just now
- GPL-2.0
- CONTRIBUTING
- replies in ~2h
Score96 out of 100 contributor score, very welcomingFirst-PR friendly
rizinorg/rizin
UNIX-like reverse engineering framework and command-line toolset.
67good first issues+39 contributions welcome
- C
- Field: Security
- Field: CLI Tools
- Stars:3.9K
- committed 19h ago
- LGPL-3.0
- CONTRIBUTING
- replies in ~9h
Score96 out of 100 contributor score, very welcomingFirst-PR friendly
x64dbg/x64dbg
An open-source user mode debugger for Windows. Optimized for reverse engineering and malware analysis.
44good first issues
- C++
- Field: Security
- Field: OS
- Stars:49.7K
- committed 3d ago
- CONTRIBUTING
- replies in ~6h
Score95 out of 100 contributor score, very welcomingFirst-PR friendly
github-linguist/linguist
Language Savant. If your repository's language is being reported incorrectly, send us a pull request!
139good first issues+1 issue open to contributors
- Ruby
- Field: Data Science
- Field: Editors
- Stars:13.7K
- committed 1d ago
- MIT
- CONTRIBUTING
- replies in ~3h
Score95 out of 100 contributor score, very welcomingFirst-PR friendly
camunda/camunda-modeler
A modeling solution for BPMN, DMN, and Forms based on bpmn.io. As a companion tool to your favorite IDE it…
62good first issues+1 issue open to contributors
- JavaScript
- Field: Editors
- Stars:1.7K
- committed 6h ago
- MIT
- CONTRIBUTING
- replies in ~8h
Score95 out of 100 contributor score, very welcomingFirst-PR friendly
gleam-lang/gleam
⭐️ A friendly language for building type-safe, scalable systems!
31good first issues+155 contributions welcome
- Rust
- Field: Compilers
- Stars:22K
- committed 19h ago
- Apache-2.0
- CONTRIBUTING
- replies in ~19h
Score94 out of 100 contributor score, very welcomingFirst-PR friendly
lobsters/lobsters
Computing-focused community centered around link aggregation and discussion
124good first issues
- Ruby
- Field: Backend
- Stars:4.8K
- committed 19h ago
- CONTRIBUTING
- replies in ~15h
Score94 out of 100 contributor score, very welcomingFirst-PR friendly
freeCodeCamp/freeCodeCamp
freeCodeCamp.org's open-source codebase and curriculum. Learn math, programming, and computer science for…
17good first issues+12 contributions welcome
- TypeScript
- Field: Web Frontend
- Field: Backend
- Stars:456.5K
- committed just now
- BSD-3-Clause
- CONTRIBUTING
- replies in ~11h
Score93 out of 100 contributor score, very welcomingFirst-PR friendly
nexu-io/open-design
🎨 Best DeepSeek Harness Design Plugin. The open-source Claude Design alternative. 🖥️ Local-first desktop…
67good first issues+205 contributions welcome
- TypeScript
- Field: Web Frontend
- Field: Machine Learning
- Stars:98.8K
- committed 1d ago
- Apache-2.0
- CONTRIBUTING
- replies in ~6m
Score93 out of 100 contributor score, very welcomingFirst-PR friendly
PointCloudLibrary/pcl
Point Cloud Library (PCL)
55good first issues+28 contributions welcome
- C++
- Field: DevOps
- Field: Machine Learning
- Stars:11.1K
- committed 6d ago
- CONTRIBUTING
- replies in ~17h
Score93 out of 100 contributor score, very welcomingFirst-PR friendly
microsoft/terminal
The new Windows Terminal and the original Windows console host, all in the same place!
15good first issues+481 contributions welcome
- C++
- Field: CLI Tools
- Field: OS
- Stars:105K
- committed 9h ago
- MIT
- CONTRIBUTING
- replies in ~7h
Score92 out of 100 contributor score, very welcomingFirst-PR friendly
radareorg/radare2
UNIX-like reverse engineering framework and command-line toolset
62good first issues
- C
- Field: Security
- Field: CLI Tools
- Stars:24.9K
- committed 1h ago
- CONTRIBUTING
- replies in ~4h
Score92 out of 100 contributor score, very welcomingFirst-PR friendly
diasurgical/DevilutionX
Diablo build for modern operating systems
23good first issues+23 contributions welcome
- C++
- Field: Game Dev
- Field: OS
- Stars:9.8K
- committed 2d ago
- CONTRIBUTING
- replies in ~1h
Score92 out of 100 contributor score, very welcomingFirst-PR friendly
stdlib-js/stdlib
✨ The fundamental numerical library for JavaScript and TypeScript. ✨ ⭐️ Star to support…
128good first issues+31 contributions welcome
- JavaScript
- Field: Scientific Computing
- Field: Data Science
- Stars:6K
- committed just now
- Apache-2.0
- CONTRIBUTING
- replies in ~2d
Score92 out of 100 contributor score, very welcomingFirst-PR friendly
microsoft/TypeScript
TypeScript is a superset of JavaScript that compiles to clean JavaScript output.
12good first issues+781 contributions welcome
- Go
- Field: Compilers
- Stars:111.3K
- committed 3h ago
- Apache-2.0
- CONTRIBUTING
- replies in ~1h
Score91 out of 100 contributor score, very welcomingFirst-PR friendly
pytorch/pytorch
Tensors and Dynamic neural networks in Python with strong GPU acceleration
48good first issues
- Python
- Field: Machine Learning
- Field: Graphics
- Stars:103.5K
- committed just now
- CONTRIBUTING
- replies in ~25h
Score91 out of 100 contributor score, very welcomingFirst-PR friendly
ray-project/ray
Ray is an AI compute engine. Ray consists of a core distributed runtime and a set of AI Libraries for…
72good first issues+15 contributions welcome
- Python
- Field: Machine Learning
- Field: Data Science
- Stars:44K
- committed 1h ago
- Apache-2.0
- CONTRIBUTING
- replies in ~5h
Score91 out of 100 contributor score, very welcomingFirst-PR friendly
uutils/coreutils
Cross-platform Rust rewrite of the GNU coreutils
19good first issues
- Rust
- Field: CLI Tools
- Stars:24.2K
- committed just now
- MIT
- CONTRIBUTING
- replies in ~2h
Score91 out of 100 contributor score, very welcomingFirst-PR friendly
DependencyTrack/dependency-track
Dependency-Track is an intelligent Component Analysis platform that allows organizations to identify and…
33good first issues+40 contributions welcome
- Java
- Field: Security
- Stars:4.2K
- committed 14h ago
- Apache-2.0
- CONTRIBUTING
- replies in ~16h
Score91 out of 100 contributor score, very welcomingFirst-PR friendly
Submitty/Submitty
Homework Submission, Automated Grading, and TA grading system.
66good first issues
- PHP
- Stars:800
- committed 5h ago
- BSD-3-Clause
- CONTRIBUTING
- replies in ~20h
Score91 out of 100 contributor score, very welcomingFirst-PR friendly

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