Master programming by recreating your favorite technologies from scratch.
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Updated
Feb 21, 2026 - Markdown
Master programming by recreating your favorite technologies from scratch.
A collective list of free APIs
DigitalPlat FreeDomain: Free Domain For Everyone
📚 免费的计算机编程类中文书籍,欢迎投稿
A curated list of free courses with certifications. Also available at https://free-certifications.com/
The Secure CommsOS™ for mission-critical operations
Zulip server and web application. Open-source team chat that helps teams stay productive and focused.
🐧 A list of awesome Linux softwares
插件化、定制化、无广告的免费音乐播放器
📚 The definitive guide to TypeScript and possibly the best TypeScript book 📖. Free and Open Source 🌹
🆓免费的 ChatGPT 镜像网站列表,持续更新。List of free ChatGPT mirror sites, continuously updated.
A collection of services with great free tiers for developers on a budget. Sponsored by Mockoon, the best mock API tool. https://mockoon.com
Kavita is a fast, feature rich, cross platform reading server. Built with the goal of being a full solution for all your reading needs. Setup your own server and share your reading collection with your friends and family.
The Concise TypeScript Book: A Concise Guide to Effective Development in TypeScript. Free and Open Source.
Grab your own sweet-looking '.is-a.dev' subdomain.
A free, open source, Bootstrap admin theme created by Start Bootstrap
Pterodactyl® is a free, open-source game server management panel built with PHP, React, and Go. Designed with security in mind, Pterodactyl runs all game servers in isolated Docker containers while exposing a beautiful and intuitive UI to end users.
Drag and drop page builder library written in vanilla javascript without dependencies or build tools.
Open source website builder and Webflow alternative. Webstudio is an advanced visual builder that connects to any headless CMS, supports all CSS properties, and can be hosted anywhere, including with us.
Create Vue Applications using a Visual Designer
Automated GitHub backups so you can recover fast, stay compliant, and never lose a line of code
GitHub Actions on your Cloud - Run Self-Hosted Runners on AWS, GCP, Azure, DigitalOcean, Oracle or OpenStack
A modern container-based CI/CD platform, easily assemble and run pipelines with high performance
Agile localization for your projects
Manage flaky unit tests. Click a checkbox to instantly disable any test on all branches. Works with your current test suite
Code quality and coverage done right
Record videos of user sessions with enhanced logging information
Code Review & Collaboration for Jupyter Notebooks
YAML configs and K8s manifests validation tool
Expert On-Demand Code Review as a Service
AI Coding Assistant for JetBrains
Ensure that new code is fully covered, and see coverage trends emerge. Works with any CI service
An Agile project management tool that seamlessly integrates with GitHub Issues
ABAP quality assurance and static analysis
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