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
Create polished screen recordings for free. An open-source alternative to Screen Studio.
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
CloudFlare free temp domain email 免费收发 临时域名邮箱 支持附件 IMAP SMTP TelegramBot
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.
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.
Expert On-Demand Code Review as a Service
Build, deploy, and maintain your Rails apps on any cloud or server
Real-time, cross-platform crash reporting and error logging starting at $0/mo
GitHub App that turns repo history into skills, PRs, guardrails, and rollout plans for AI coding agents
Slack Collaboration app for Pull Requests. Reduce pick-up time & organize daily standups around open PRs
an add-on to github actions which allows safely pushing changes back to pull requests
World's most tech-savvy GitHub backup, recovery, restore, migration & config management trusted by Fortune 500
Advanced static analysis for automatically finding runtime errors in JavaScript, TypeScript, React, and Vue code
GitHub Actions on your Cloud - Run Self-Hosted Runners on AWS, GCP, Azure, DigitalOcean, Oracle or OpenStack
PR & DORA metrics, amazing alerts, daily activity summaries
CommitCheck ensures your commit messages are consistent and contain all required information
A Developer Relations Platform
ensure that all repositories have the same settings, e.g. visibility, squash delete, gpg branch protection, team permissions
Code Review & Collaboration for Jupyter Notebooks
See your test and style results without leaving GitHub. Works with any CI service. Supports JUnit, Checkstyle, and more
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