Top ALTERNATIVE GitHub Repositories & Tools (2026)

A terminal window manager that knows what your agents are doing. Tiling panes, workspaces, sessions that survive restarts, and one Inbox for every coding agent.

The truly free, and open-source cross-platform CapCut replacement (supports MCPs).

High performance self-hosted photo and video management solution.

Macro is a unified workspace for teams: email, chat, docs, tasks, agents, calls, and CRM — @-linked together with shared AI memory.

🎨 Best DeepSeek Harness Design Plugin. The open-source Claude Design alternative. 🖥️ Local-first desktop app. 🖼️ Your coding agent becomes the design engine: prototypes, landing pages, dashboards, slides, images & video — real files, HTML/PDF/PPTX/MP4 export. 🤖 Claude Code / Codex / Cursor / DeepSeek Harness / OpenCode & 20+ CLIs via BYOK.

A modern file manager that helps users organize their files and folders.

Open-source, bring-your-own-key (BYOK) multi-model AI chat client for iOS, Android and the web. One LLM client for OpenAI, Anthropic, Google Gemini, OpenRouter, DeepSeek and ten more providers, plus any OpenAI-, Anthropic- or Gemini-compatible endpoint — Ollama, LM Studio, llama.cpp, vLLM. Local-first, self-hostable, no account. AGPL-3.0.

Synthadoc: An open-source LLM knowledge compilation engine that turns raw documents into structured, local-first wikis. A transparent, human-readable alternative to traditional RAG, which can be self-managed and self-improved without the use of any tools.

Ministack: Free, open-source local AWS emulator - 60+ services, Terraform compatible, real databases. Free forever. MIT licensed.

OpenAI-compatible API migration kit: drop-in /v1/images/generations and chat examples, a compatibility matrix, rollback switches and a checklist for moving workloads between AI API gateways.

The Postgres development platform. Supabase gives you a dedicated Postgres database to build your web, mobile, and AI applications.

A compounding agent OS for recursive agents. Also an open source alternative to Grok Bot and Meta's Muse.

A WorkBuddy-style desktop workspace powered by the DSH plugin ecosystem. WorkDSH manages projects, assets, experts, skills and connectors locally on desktop. All features are extensible via DeepSeek Harness plugins. Local-first, open ecosystem.

Run Windows games on Apple Silicon — free, open source, with an open compatibility database that tells you what actually works.

Open firmware for the Echo Show 5, 1st and 2nd gen: Alpine Linux instead of Android, no Alexa. A local Home Assistant voice satellite with its own touch screen, on-device wake word, SSH and A/B over-the-air updates.

Free Windows, Mac and Linux cleaner, scanner, and more.

Mac Sai: the open-source Mac cleaner, optimizer, and malware scanner. A free, Apple-notarized alternative to CleanMyMac, built with Swift 6 and SwiftUI.

Awesome Privacy - A curated list of services and alternatives that respect your privacy because PRIVACY MATTERS.

Programmable text utility that mac needs

Awesome list of open-source startup alternatives to well-known SaaS products 🚀