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
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.
Create polished screen recordings for free. An open-source alternative to Screen Studio.
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.
CloudFlare free temp domain email 免费收发 临时域名邮箱 支持附件 IMAP SMTP TelegramBot
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.
Continuously build, test, and deploy to any platform and cloud
Automated code review for humans and AI
Connect, organize, and auto-generate documentation for your team's internal APIs
Review PRs up to 40% faster. Pinpoint highest tech debt directories. Most engineer-friendly Developer Analytic velocity stats
Automatically fix pull requests to increase developer productivity
Build, deploy, and maintain your Rails apps on any cloud or server
See your test and style results without leaving GitHub. Works with any CI service. Supports JUnit, Checkstyle, and more
Real-time, cross-platform crash reporting and error logging starting at $0/mo
Automatically validates pull requests, branches and commit messages in your Github repositories
Cloud service for building, testing and deploying Windows apps
Cut Code Review Time & Bugs in Half
Test Management software for DevOps, including CI Results Dashboard, Manual Test Case Management, and Exploratory testing
Metrics, goals, and time tracking automatically generated from your programming activity
Code quality and coverage done right
Find, fix (and prevent!) known vulnerabilities in your code
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