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 3, 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
Cloud 66 Skycap
Skycap is a container native CI/CD tool
webapp.io
Full-stack review environments and end-to-end tests embedded into every pull request
Review Notebook App
Code Review & Collaboration for Jupyter Notebooks
Imgbot
A GitHub app that optimizes your images
Stastic
Website editor on top of Github pages
Renovate
Dependency Automation service by Mend.io
Cloud 66 for Rails
Build, deploy, and maintain your Rails apps on any cloud or server
Container Registry
Best-in-class CNCF Harbor based Container Image Management for individuals, teams and organizations
pre-commit ci
a continuous integration service for the pre-commit framework
Kleore
Detect flaky tests, quantify CI waste in dollars, and auto-fix with AI. For GitHub Actions teams
Codeac.io
We help developers write clean code
Slack + GitHub
Connect your code without leaving Slack
BuildPulse
Automatically detect, track, and rank flaky tests so you can regain trust in your test suite
WhatProblem AI - Requirements Clarification Bot
AI that asks the right questions to turn vague issues into clear requirements - no more guessing
Mergify
Pull requests automation service. Merge your pull requests faster with automatic merges and a merge queue
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