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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Feb 19, 2026 - Python
DigitalPlat FreeDomain: Free Domain For Everyone
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Mar 2, 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
A curated list of free courses with certifications. Also available at https://free-certifications.com/
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Jul 22, 2025
The Secure CommsOS™ for mission-critical operations
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Mar 3, 2026 - TypeScript
🐧 A list of awesome Linux softwares
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Feb 16, 2026 - HTML
Zulip server and web application. Open-source team chat that helps teams stay productive and focused.
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Mar 3, 2026 - Python
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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Mar 2, 2026
The Concise TypeScript Book: A Concise Guide to Effective Development in TypeScript. Free and Open Source.
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Mar 3, 2026 - JavaScript
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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Mar 3, 2026 - C#
A free, open source, Bootstrap admin theme created by Start Bootstrap
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Jul 2, 2024 - HTML
Grab your own sweet-looking '.is-a.dev' subdomain.
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Mar 2, 2026 - JavaScript
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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Feb 14, 2026 - PHP
Drag and drop page builder library written in vanilla javascript without dependencies or build tools.
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Sep 19, 2025 - JavaScript
Free apps
CodeScene
A software engineering intelligence tool tool to identify and prioritize technical debt and evaluate your efficiency
AppVeyor
Cloud service for building, testing and deploying Windows apps
Naming Conventions Bot
Automatically validates pull requests, branches and commit messages in your Github repositories
Sentry
Real-time, cross-platform crash reporting and error logging
DeepSource
The Code Health platform - Everything you need to build maintainable and secure software
PullFlow
AI-enhanced code review collaboration across GitHub, Slack & VS Code
Mend Bolt
Detect open source vulnerabilities in real time with suggested fixes for quick remediation
Percy
Automated visual review platform
Qlty Cloud
Code quality and coverage done right
gitpod.io
Always ready to code - Spin up fresh cloud development environments for each task, fully automated, in seconds
Codecov | Code Coverage
Automatic test report merging for all CI and languages into a single code coverage report directly into your pull request
CodeFactor
Automated code review for humans and AI
Socket Security
Developer-first security platform that protects your code from both vulnerable and malicious dependencies
Codeac.io
We help developers write clean code
Flaptastic
Manage flaky unit tests. Click a checkbox to instantly disable any test on all branches. Works with your current test suite
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