Master programming by recreating your favorite technologies from scratch.
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Feb 21, 2026 - Markdown
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free
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A collective list of free APIs
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May 2, 2026 - Python
DigitalPlat FreeDomain: Free Domain For Everyone
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Apr 24, 2026 - HTML
📚 免费的计算机编程类中文书籍，欢迎投稿
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Jul 15, 2024
The Secure CommsOS™ for mission-critical operations
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May 2, 2026 - TypeScript
Zulip server and web application. Open-source team chat that helps teams stay productive and focused.
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May 1, 2026 - Python
🐧 A list of awesome Linux softwares
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May 3, 2026 - HTML
插件化、定制化、无广告的免费音乐播放器
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Jan 6, 2026 - TypeScript
📚 The definitive guide to TypeScript and possibly the best TypeScript book 📖. Free and Open Source 🌹
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Jun 29, 2024 - TypeScript
🆓免费的 ChatGPT 镜像网站列表，持续更新。List of free ChatGPT mirror sites, continuously updated.
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Jun 23, 2025 - Python
A collection of services with great free tiers for developers on a budget. Sponsored by Mockoon, the best mock API tool. https://mockoon.com
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Apr 10, 2026
Create polished screen recordings without editing. Mac/Windows/Linux
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May 2, 2026 - TypeScript
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.
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May 2, 2026 - C#
The Concise TypeScript Book: A Concise Guide to Effective Development in TypeScript. Free and Open Source.
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Apr 22, 2026 - JavaScript
Grab your own sweet-looking '.is-a.dev' subdomain.
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May 3, 2026 - JavaScript
A free, open source, Bootstrap admin theme created by Start Bootstrap
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Jul 2, 2024 - HTML
CloudFlare free temp domain email 免费收发 临时域名邮箱 支持附件 IMAP SMTP TelegramBot
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Apr 30, 2026 - TypeScript
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.
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Apr 5, 2026 - PHP
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.
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May 2, 2026 - TypeScript
Free apps
Snyk
Find, fix (and prevent!) known vulnerabilities in your code
Flaptastic
Manage flaky unit tests. Click a checkbox to instantly disable any test on all branches. Works with your current test suite
BuildPulse
Automatically detect, track, and rank flaky tests so you can regain trust in your test suite
GitClear
Review PRs up to 40% faster. Pinpoint highest tech debt directories. Most engineer-friendly Developer Analytic velocity stats
Coveralls
Ensure that new code is fully covered, and see coverage trends emerge. Works with any CI service
Mend Bolt
Detect open source vulnerabilities in real time with suggested fixes for quick remediation
Code Review Doctor
Catch more Python and Django bugs during code review
PullFlow
AI-enhanced code review collaboration across GitHub, Slack & VS Code
abaplint
ABAP quality assurance and static analysis
Cirrus CI
Enjoy unlimited concurrency for fast and secure development cycle
Check Run Reporter
See your test and style results without leaving GitHub. Works with any CI service. Supports JUnit, Checkstyle, and more
Renovate
Dependency Automation service by Mend.io
Container Registry
Best-in-class CNCF Harbor based Container Image Management for individuals, teams and organizations
Vaunt.Dev
A Developer Relations Platform
Imgbot
A GitHub app that optimizes your images
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