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Security open-source projects

OpenSrc lists 91 repositories about Security with open issues for new contributors, and 52 of them are first-PR friendly. Between them they have 1,730 open good first issues and 1,479 help-wanted issues. The median welcome score is 74/100, and the best-scored right now are x64dbg/x64dbg, rizinorg/rizin and jason5ng32/MyIP. Most are written in Go, C and Java. Many also touch DevOps & Cloud and Web Frontend.

91 repos by best score

Filter these in the directory
  • An open-source user mode debugger for Windows. Optimized for reverse engineering and malware analysis.

    44good first issues
    • C++
    • Field: Security
    • Stars:49.6K
    • CONTRIBUTING
    • replies in ~6h
    Score97 out of 100 contributor score, very welcomingFirst-PR friendly
  • UNIX-like reverse engineering framework and command-line toolset.

    67good first issues+39 help wanted
    • C
    • Field: Security
    • Field: CLI Tools
    • Stars:3.9K
    • LGPL-3.0
    • CONTRIBUTING
    • replies in ~9h
    Score96 out of 100 contributor score, very welcomingFirst-PR friendly
  • The best IP Toolbox. Check your IP address & geolocation, test IP for WebRTC and DNS IP leaks, run an IP…

    17good first issues+5 help wanted
    • JavaScript
    • Field: Networking
    • Field: Security
    • Stars:12K
    • MIT
    • CONTRIBUTING
    • replies in ~8h
    Score94 out of 100 contributor score, very welcomingFirst-PR friendly
  • Dependency-Track is an intelligent Component Analysis platform that allows organizations to identify and…

    33good first issues+40 help wanted
    • Java
    • Field: Security
    • Stars:4.2K
    • Apache-2.0
    • CONTRIBUTING
    • replies in ~16h
    Score94 out of 100 contributor score, very welcomingFirst-PR friendly
  • The easiest, most secure way to use WireGuard and 2FA.

    9good first issues+9 help wanted
    • Go
    • Field: Security
    • Stars:37K
    • BSD-3-Clause
    • CONTRIBUTING
    • replies in ~18h
    Score92 out of 100 contributor score, very welcomingFirst-PR friendly
  • General purpose TLS and crypto library

    13good first issues+216 help wanted
    • C
    • Field: Security
    • Field: Blockchain
    • Stars:30.9K
    • Apache-2.0
    • CONTRIBUTING
    • replies in ~2h
    Score92 out of 100 contributor score, very welcomingFirst-PR friendly
  • UNIX-like reverse engineering framework and command-line toolset

    62good first issues
    • C
    • Field: Security
    • Field: CLI Tools
    • Stars:24.9K
    • CONTRIBUTING
    • replies in ~4h
    Score91 out of 100 contributor score, very welcomingFirst-PR friendly
  • Cryptomator for Windows, macOS, and Linux: Secure client-side encryption for your cloud storage, ensuring…

    14good first issues
    • Java
    • Field: Security
    • Field: DevOps
    • Stars:16.2K
    • GPL-3.0
    • CONTRIBUTING
    • replies in ~27h
    Score91 out of 100 contributor score, very welcomingFirst-PR friendly
  • A minimalist, open source online pastebin where the server has zero knowledge of pasted data. Data is…

    13good first issues+23 help wanted
    • PHP
    • Field: Security
    • Field: Blockchain
    • Stars:8.6K
    • CONTRIBUTING
    • replies in ~21h
    Score91 out of 100 contributor score, very welcomingFirst-PR friendly
  • Comfortably monitor your network traffic 🕵️‍♂️

    10good first issues+10 help wanted
    • Rust
    • Field: Networking
    • Field: Security
    • Stars:41.3K
    • Apache-2.0
    • CONTRIBUTING
    • replies in ~5h
    Score89 out of 100 contributor score, very welcomingFirst-PR friendly
  • "rsync for cloud storage" - Google Drive, S3, Dropbox, Backblaze B2, One Drive, Swift, Hubic, Wasabi, Google…

    12good first issues+180 help wanted
    • Go
    • Field: DevOps
    • Field: Security
    • Stars:60K
    • MIT
    • CONTRIBUTING
    • replies in ~3d
    Score87 out of 100 contributor score, very welcoming
  • EMBA - The firmware security analyzer

    9good first issues+10 help wanted
    • Shell
    • Field: Embedded
    • Field: Security
    • Stars:3.7K
    • GPL-3.0
    • CONTRIBUTING
    • replies in ~5h
    Score87 out of 100 contributor score, very welcomingFirst-PR friendly
  • Open database of 27,000+ CCTV camera specs across 220+ brands, with Frigate and ONVIF/RTS integration, CC0

    9good first issues+18 help wanted
    • JavaScript
    • Field: Databases
    • Field: Security
    • Stars:275
    • CONTRIBUTING
    • replies in ~7h
    Score86 out of 100 contributor score, very welcomingFirst-PR friendly
  • ZITADEL - Identity infrastructure, simplified for you.

    43good first issues+7 help wanted
    • Go
    • Field: Security
    • Field: DevOps
    • Stars:15.1K
    • AGPL-3.0
    • CONTRIBUTING
    Score85 out of 100 contributor score, very welcomingFirst-PR friendly
  • The Cyber Swiss Army Knife - a web app for encryption, encoding, compression and data analysis

    3good first issues+54 help wanted
    • JavaScript
    • Field: Data Science
    • Field: Security
    • Stars:36K
    • Apache-2.0
    • CONTRIBUTING
    • replies in ~2d
    Score84 out of 100 contributor score, very welcomingFirst-PR friendly
  • Testing TLS/SSL encryption anywhere on any port

    5good first issues+23 help wanted
    • Shell
    • Field: Networking
    • Field: Scientific Computing
    • Stars:9.2K
    • GPL-2.0
    • CONTRIBUTING
    • replies in ~21h
    Score84 out of 100 contributor score, very welcomingFirst-PR friendly
  • 🔐 Secure your cluster with TLS, numerous authentication backends, data masking, audit logging as well as…

    15good first issues+37 help wanted
    • Java
    • Field: Security
    • Field: Backend
    • Stars:253
    • Apache-2.0
    • CONTRIBUTING
    • replies in ~2d
    Score84 out of 100 contributor score, very welcomingFirst-PR friendly
  • Weighs the soul of incoming HTTP requests to stop AI crawlers

    3good first issues+3 help wanted
    • Go
    • Field: Security
    • Field: Machine Learning
    • Stars:22.8K
    • MIT
    • CONTRIBUTING
    • replies in ~31h
    Score83 out of 100 contributor score, very welcomingFirst-PR friendly
  • Static analysis for GitHub Actions

    7good first issues+10 help wanted
    • Rust
    • Field: Security
    • Stars:6.6K
    • MIT
    • CONTRIBUTING
    • replies in ~25h
    Score83 out of 100 contributor score, very welcomingFirst-PR friendly
  • KeePassXC is a cross-platform community-driven port of the Windows application “KeePass Password Safe”.

    4good first issues+17 help wanted
    • C++
    • Field: Security
    • Field: OS
    • Stars:29K
    • CONTRIBUTING
    • replies in ~1h
    Score82 out of 100 contributor score, very welcomingFirst-PR friendly
  • The ZAP by Checkmarx Core project

    11good first issues+2 help wanted
    • Java
    • Field: Security
    • Stars:15.8K
    • Apache-2.0
    • CONTRIBUTING
    • replies in ~10h
    Score82 out of 100 contributor score, very welcomingFirst-PR friendly
  • ThunderID is a high-performance, open-source identity stack designed for developers to secure and manage…

    37good first issues
    • Go
    • Field: Security
    • Field: Machine Learning
    • Stars:586
    • Apache-2.0
    • CONTRIBUTING
    • replies in ~11h
    Score82 out of 100 contributor score, very welcomingFirst-PR friendly
  • OpenSSL 3+ provider containing post-quantum algorithms

    10good first issues+17 help wanted
    • C
    • Field: Security
    • Stars:501
    • MIT
    • CONTRIBUTING
    • replies in ~14h
    Score82 out of 100 contributor score, very welcomingFirst-PR friendly
  • Vulnerability scanner written in Go which uses the data provided by https://osv.dev

    5good first issues
    • Go
    • Field: Security
    • Field: Networking
    • Stars:11.1K
    • Apache-2.0
    • CONTRIBUTING
    • replies in ~32h
    Score81 out of 100 contributor score, very welcomingFirst-PR friendly
  • Free and open log management

    12good first issues
    • Java
    • Field: Observability
    • Field: Security
    • Stars:8.2K
    • CONTRIBUTING
    Score81 out of 100 contributor score, very welcomingFirst-PR friendly
  • Zeek is a powerful network analysis framework that is much different from the typical IDS you may know.

    9good first issues
    • C++
    • Field: Security
    • Field: Networking
    • Stars:8K
    • CONTRIBUTING
    • replies in ~8h
    Score80 out of 100 contributor score, very welcomingFirst-PR friendly
  • OWASP VulnerableApp Project: Break it. Scan it. Reproduce it. Benchmark against it. Improve it.

    71good first issues+23 help wanted
    • Java
    • Field: Security
    • Field: Web Frontend
    • Stars:467
    • Apache-2.0
    • CONTRIBUTING
    Score80 out of 100 contributor score, very welcomingFirst-PR friendly
  • 💚 End-to-end encrypted cloud for everything.

    1good first issue+3 help wanted
    • Dart
    • Field: Mobile
    • Field: Security
    • Stars:29.2K
    • AGPL-3.0
    • CONTRIBUTING
    • replies in ~2d
    Score79 out of 100 contributor score, very welcoming
  • The batteries-included full-stack framework for the AI era. Develop JS/TS web apps (React, Node.js, and…

    3good first issues+3 help wanted
    • TypeScript
    • Field: Web Frontend
    • Field: Machine Learning
    • Stars:18.8K
    • MIT
    • CONTRIBUTING
    • replies in ~7h
    Score79 out of 100 contributor score, very welcomingFirst-PR friendly
  • MISP (core software) - Open Source Threat Intelligence and Sharing Platform

    17good first issues+28 help wanted
    • PHP
    • Field: Security
    • Stars:6.6K
    • AGPL-3.0
    • CONTRIBUTING
    • replies in ~13d
    Score79 out of 100 contributor score, very welcoming

Showing 30 of 91 repos

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