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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Mar 18, 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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Apr 29, 2026 - TypeScript
Zulip server and web application. Open-source team chat that helps teams stay productive and focused.
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Apr 28, 2026 - Python
🐧 A list of awesome Linux softwares
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Feb 16, 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 for free. An open-source alternative to Screen Studio.
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Apr 29, 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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Apr 29, 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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Apr 29, 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 29, 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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Apr 29, 2026 - TypeScript
Free apps
Semgrep
Code scanning at ludicrous speed. Find bugs and reachable dependency vulnerabilities. Enforce standards on every commit
CommitCheck
CommitCheck ensures your commit messages are consistent and contain all required information
Azure Pipelines
Continuously build, test, and deploy to any platform and cloud
Codacy
Codacy helps to build effortless code quality and security for developers
ReadMe Micro
Connect, organize, and auto-generate documentation for your team's internal APIs
ChartDB
Database diagrams editor with AI that allows you to visualize and design your DB with a single query
cto.new
Completely free AI code agent. Use the best frontier models from Anthropic, OpenAI & more with no credit card or API keys
CodeRabbit
Cut Code Review Time & Bugs in Half
WakaTime
Metrics, goals, and time tracking automatically generated from your programming activity
Socket Security
Developer-first security platform that protects your code from both vulnerable and malicious dependencies
Mergify
Pull requests automation service. Merge your pull requests faster with automatic merges and a merge queue
Code Review Doctor
Catch more Python and Django bugs during code review
Notebook Reviews Done Right
Review tool for Jupyter Notebooks
WhatProblem AI - Requirements Clarification Bot
AI that asks the right questions to turn vague issues into clear requirements - no more guessing
GuardRails
GuardRails provides continuous security feedback for modern development teams
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