Top ALTERNATIVE GitHub Repositories & Tools (2026)

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.

Any file → clean Markdown for AI agents: PDF, Word, PowerPoint, Excel, EPUB, HTML and web pages, images (OCR), audio and video (metadata, subtitles, transcripts). A fast Rust MCP server and CLI that runs on your machine. No API key.

The most comprehensive Claude Code guide: agentic workflows, hooks, skills, MCP servers, quizzes, and production-ready templates. 430K+ lines.

AI-native open-source alternative to Vercel + Sentry + PostHog + Pingdom + Resend + E2B. 440+ CLI operations with drop-in skills for Claude Code, Codex & OpenCode — deployments, analytics, session replay, error tracking, OpenTelemetry, email, sandboxes & AI gateway in one self-hosted Rust binary.

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 🚀

AI video processing pipeline for generating vertical shorts using LLMs, Whisper transcription, highlight detection and automated editing

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, open-source clipboard manager for macOS. Native card-style UI with Pinboards, Quick Look, and 100% local storage.

The local-first AI assisted research workspace for scientific writing & publishing. Research, Write, Compile, Verify and Publish in LaTeX • Typst • Markdown • Git-native • Open Source • Desktop Performance

Free, open-source CleanMyMac alternative for macOS. Native SwiftUI disk cleaner for app caches, node_modules, Xcode DerivedData and Docker usage - nothing is ever really deleted: it all goes to the Trash and stays undoable. No telemetry, no daemon, no subscription.

Free, open-source fan control for Apple Silicon Macs (M1, M2, M3, M4, M5). Menu bar app + CLI. Alternative to Macs Fan Control, TG Pro, AlDente.

Fast macOS disk-usage analyzer with an interactive sunburst chart — scans a full drive in seconds.

Self-hosted private chat: no cloud, no telemetry, no Big Tech. Discord alternative that runs on your own machine.

AI pair programming in your terminal — one static binary, sub-ms startup, any model

Open-source universal artifact registry. Drop-in Artifactory/Nexus alternative with 40+ package formats, security scanning, WASM plugins, and edge replication.

FreeScout — Free self-hosted omnichannel AI-powered helpdesk & shared mailbox

Unrestricted Open-source alternative to AI video platforms — Free AI image & video generation studio with 600+ models (Flux, Midjourney, Kling, Sora, Veo). No content filters. Self-hosted, MIT licensed.