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The Secure CommsOS™ for mission-critical operations

Create polished demo videos without editing skills. Mac/Windows/Linux

Zulip server and web application. Open-source team chat that helps teams stay productive and focused.

A collection of services with great free tiers for developers on a budget. Sponsored by Mockoon, the best mock API tool. https://mockoon.com

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.

Grab your own sweet-looking '.is-a.dev' subdomain.

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.

A local multi-agent harness that works with your existing Claude Code, Codex subscriptions, allows you to run an office of agents

Space exploration, trading, and combat game.

BleachBit system cleaner for Windows and Linux

An open source, turn-based strategy game with a high fantasy theme.

Free open source crypto trading bot to automate AI, Grid, DCA and TradingView strategies on Binance, Hyperliquid and 15+ exchanges, with a simple interface.

【免费社区版】【企业版】Webfunny是一款集全链路监控和用户行为分析（埋点）系统于一体的大数据分析系统，我们致力于解决线上的疑难杂症和精细化分析业务数据；监控系统面向技术、埋点系统面向业务，两者配合使用，相得益彰。

Your web application for managing personal data.

TheHive is a Collaborative Case Management Platform, now distributed as a commercial version

A simple and open-source proxy API that allows you to access OpenAI's ChatGPT API for free!

Free LLM API keys for GPT-5.5, Claude, DeepSeek, Gemini, Grok — copy, paste, use. Updated 3-5x daily. No credit card needed.

Find, benchmark and install in CLI 170+ FREE coding LLM models across 15+ providers in real time

free chatgpt api

Free system monitor for OSX and macOS. See all system information at a glance in the menu bar.

Free, open source game server management panel built on Laravel and Docker.

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Create Your Own Broadcast Network With AVideo Platform Open-Source. OAVP OVP

Free and libre source BadUSB payloads for Flipper Zero. [Windows, GNU/Linux, iOS]

Privacy-focused encrypted email for everyone. All-in-one alternative to Gmail + Mailchimp + Sendgrid.

Cortex: a Powerful Observable Analysis and Active Response Engine

Webchat to API

ThePhish: an automated phishing email analysis tool

Open Source Social Network (OSSN) is a powerful open-source social networking software developed in PHP. It enables you to create a fully functional social networking website that fosters community engagement and helps your members form meaningful social relationships.