Collection

Fast responders

Maintainers who usually reply within 24 hours.

284 repos by fastest replies

elastic/elasticsearch
Free and Open Source, Distributed, RESTful Search Engine
21good first issues+75 help wanted
- Java
- Stars:78.1K
- committed just now
- CONTRIBUTING
- replies in ~1m
Score92 out of 100 contributor score, very welcomingFirst-PR friendly
wordpress-mobile/WordPress-Android
WordPress for Android
23good first issues
- Kotlin
- Field: Mobile
- Stars:3.2K
- committed 6h ago
- GPL-2.0
- CONTRIBUTING
- replies in ~1m
Score92 out of 100 contributor score, very welcomingFirst-PR friendly
react/react-native
A framework for building native applications using React
8good first issues
- C++
- Field: Mobile
- Stars:126.8K
- committed 4h ago
- MIT
- CONTRIBUTING
- replies in ~1m
Score89 out of 100 contributor score, very welcomingFirst-PR friendly
longhorn/longhorn
Cloud-Native distributed storage built on and for Kubernetes
42good first issues+20 help wanted
- Shell
- Field: DevOps
- Field: OS
- Stars:8K
- committed 5d ago
- Apache-2.0
- CONTRIBUTING
- replies in ~1m
Score85 out of 100 contributor score, very welcomingFirst-PR friendly
bitwarden/server
Bitwarden infrastructure/backend (API, database, Docker, etc).
4good first issues
- C#
- Field: Databases
- Field: Backend
- Stars:20.2K
- committed 3h ago
- CONTRIBUTING
- replies in ~1m
Score77 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…
68good first issues+206 help wanted
- TypeScript
- Field: Web Frontend
- Field: Machine Learning
- Stars:98.6K
- committed 4h ago
- Apache-2.0
- CONTRIBUTING
- replies in ~6m
Score91 out of 100 contributor score, very welcomingFirst-PR friendly
ohcnetwork/care_fe
Care is a Digital Public Good enabling accelerated healthcare delivery.
12good first issues
- TypeScript
- Stars:653
- committed 1d ago
- MIT
- replies in ~6m
Score69 out of 100 contributor score, welcoming
NVIDIA/cccl
CUDA Core Compute Libraries
17good first issues+9 help wanted
- C++
- Field: Graphics
- Field: Scientific Computing
- Stars:2.5K
- committed 1h ago
- CONTRIBUTING
- replies in ~12m
Score90 out of 100 contributor score, very welcomingFirst-PR friendly
kdl-org/kdl-rs
Rust parser for KDL
10good first issues+12 help wanted
- Rust
- Field: Compilers
- Stars:518
- committed 4d ago
- Apache-2.0
- replies in ~12m
Score77 out of 100 contributor score, very welcoming
OpenHands/OpenHands
🙌 OpenHands: AI-Driven Development
24good first issues
- TypeScript
- Field: Machine Learning
- Field: CLI Tools
- Stars:89.5K
- committed 6h ago
- MIT
- replies in ~18m
Score86 out of 100 contributor score, very welcoming
agentscope-ai/agentscope-java
Build distributed, production-grade, long-running agents.
7good first issues+21 help wanted
- Java
- Field: Machine Learning
- Stars:5.8K
- committed 17h ago
- Apache-2.0
- CONTRIBUTING
- replies in ~18m
Score74 out of 100 contributor score, welcomingFirst-PR friendly
PecanProject/pecan
The Predictive Ecosystem Analyzer (PEcAn) is an integrated ecological bioinformatics toolbox.
5good first issues+1 help wanted
- R
- Field: Scientific Computing
- Field: Data Science
- Stars:246
- committed 2h ago
- CONTRIBUTING
- replies in ~18m
Score72 out of 100 contributor score, welcomingFirst-PR friendly
stan-dev/stanc3
The Stan transpiler (from Stan to C++ and beyond).
7good first issues+13 help wanted
- OCaml
- Stars:160
- committed 3d ago
- BSD-3-Clause
- replies in ~18m
Score70 out of 100 contributor score, welcoming
OpenTTD/OpenTTD
OpenTTD is an open source simulation game based upon Transport Tycoon Deluxe
15good first issues
- C++
- Field: Game Dev
- Field: Scientific Computing
- Stars:8.3K
- committed 15h ago
- CONTRIBUTING
- replies in ~24m
Score88 out of 100 contributor score, very welcomingFirst-PR friendly
beyond-all-reason/teiserver
Middleware server for online gaming
20good first issues
- Elixir
- Stars:103
- committed 2d ago
- MIT
- CONTRIBUTING
- replies in ~24m
Score84 out of 100 contributor score, very welcomingFirst-PR friendly
SkriptLang/Skript
Skript is a Paper plugin which allows server admins to customize their server easily, but without the hassle…
30good first issues+3 help wanted
- Java
- Stars:1.3K
- committed 4w ago
- GPL-3.0
- CONTRIBUTING
- replies in ~24m
Score81 out of 100 contributor score, very welcomingFirst-PR friendly
root-project/root
The official repository for ROOT: analyzing, storing and visualizing big data, scientifically
17good first issues+4 help wanted
- C++
- Field: Data Science
- Field: Machine Learning
- Stars:3.3K
- committed just now
- CONTRIBUTING
- replies in ~24m
Score74 out of 100 contributor score, welcomingFirst-PR friendly
PRQL/prql
PRQL is a modern language for transforming data — a simple, powerful, pipelined SQL replacement
7good first issues+20 help wanted
- Rust
- Field: Databases
- Stars:10.9K
- committed 1h ago
- Apache-2.0
- CONTRIBUTING
- replies in ~30m
Score90 out of 100 contributor score, very welcomingFirst-PR friendly
contao/contao
Contao Open Source CMS
12good first issues+92 help wanted
- PHP
- Stars:439
- committed 9h ago
- LGPL-3.0
- CONTRIBUTING
- replies in ~30m
Score85 out of 100 contributor score, very welcomingFirst-PR friendly
F3-Nation/f3-nation
F3 Nation Monorepo
17good first issues+1 help wanted
- TypeScript
- Stars:208
- committed 22h ago
- AGPL-3.0
- CONTRIBUTING
- replies in ~30m
Score84 out of 100 contributor score, very welcomingFirst-PR friendly
mobile-dev-inc/Maestro
Painless E2E Automation for Mobile and Web
10good first issues
- Kotlin
- Field: Mobile
- Field: Web Frontend
- Stars:15.8K
- committed 4d ago
- Apache-2.0
- CONTRIBUTING
- replies in ~30m
Score83 out of 100 contributor score, very welcomingFirst-PR friendly
embeddings-benchmark/mteb
MTEB: State-of-the-art evaluation of embeddings across languages and modalities
17good first issues+3 help wanted
- Python
- Field: Machine Learning
- Stars:3.4K
- committed 3d ago
- Apache-2.0
- CONTRIBUTING
- replies in ~42m
Score86 out of 100 contributor score, very welcomingFirst-PR friendly
terrakube-io/terrakube
Open source IaC Automation and Collaboration Software.
6good first issues+16 help wanted
- Java
- Field: DevOps
- Stars:966
- committed 3d ago
- Apache-2.0
- CONTRIBUTING
- replies in ~42m
Score85 out of 100 contributor score, very welcomingFirst-PR friendly
musescore/MuseScore
MuseScore is an open source and free music notation software. For support, contribution, bug reports, visit…
16good first issues+4 help wanted
- C++
- Stars:15.2K
- committed just now
- CONTRIBUTING
- replies in ~42m
Score83 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
symfony/symfony
The Symfony PHP framework
46good first issues+52 help wanted
- PHP
- Stars:31.2K
- committed 13h ago
- MIT
- CONTRIBUTING
- replies in ~48m
Score98 out of 100 contributor score, very welcomingFirst-PR friendly
beekeeper-studio/beekeeper-studio
Modern and easy to use SQL client for MySQL, Postgres, SQLite, SQL Server, and more. Linux, MacOS, and…
7good first issues+12 help wanted
- TypeScript
- Field: Databases
- Field: OS
- Stars:23.7K
- committed 12h ago
- CONTRIBUTING
- replies in ~48m
Score88 out of 100 contributor score, very welcomingFirst-PR friendly
glpi-project/glpi
GLPI is a Free Asset and IT Management Software package, Data center management, ITIL Service Desk, licenses…
8good first issues+4 help wanted
- PHP
- Stars:6.4K
- committed 1h ago
- GPL-3.0
- CONTRIBUTING
- replies in ~48m
Score81 out of 100 contributor score, very welcomingFirst-PR friendly
Eugeny/tabby
A terminal for a more modern age
4good first issues+1 help wanted
- TypeScript
- Field: CLI Tools
- Stars:74.7K
- committed 4d ago
- MIT
- replies in ~48m
Score76 out of 100 contributor score, very welcoming
TencentCloud/CubeSandbox
Instant, Concurrent, Secure & Lightweight Sandbox for AI Agents.
3good first issues+4 help wanted
- Go
- Field: DevOps
- Field: Machine Learning
- Stars:12.8K
- committed 19h ago
- CONTRIBUTING
- replies in ~48m
Score65 out of 100 contributor score, welcomingFirst-PR friendly

Showing 30 of 284 repos