Free AI Tools for Open Source

Open-source AI tool for deep infrastructure research, running frontier models across code, cloud, and runtime to deliver verified answers.

Magpie is an opinionated accounting CLI for humans and AI agents, providing double-entry bookkeeping with RBAC and immutable event storage on Jaybase.

BeatFlow is an open-source LLM music composition skill that turns musical briefs into editable Python plans and deterministic multi-track MIDI files.

Zero-config, single-binary software catalog with auto-discovery, dependency visualization, compliance scorecards, and native MCP integration for AI agents.

An AI-powered shopper assistant that provides a live cursor to guide website visitors, point out products, and display price calculations.

Yap is a blazing-fast, open-source voice dictation app for macOS that runs entirely on-device, with no cloud, no API keys, and no account needed.

Self-hostable sandbox SDK for AI agents that provides isolated environments with key management and egress control on your own hardware.

Open-source desktop app to manage multiple project workspaces simultaneously, keeping terminals and AI coding agents running across projects with instant switching.

OpenSorSe is an open-source, multi-platform AI-assisted file organizer that scans, searches, and organizes files with local-first privacy and optional Ollama AI suggestions.

A macOS menu-bar app that gives AI agents the ability to draw directly on your screen via MCP.

Open-source AI tool for deep infrastructure research, running frontier models across code, cloud, and runtime to deliver verified answers.

Magpie is an opinionated accounting CLI for humans and AI agents, providing double-entry bookkeeping with RBAC and immutable event storage on Jaybase.

BeatFlow is an open-source LLM music composition skill that turns musical briefs into editable Python plans and deterministic multi-track MIDI files.

Zero-config, single-binary software catalog with auto-discovery, dependency visualization, compliance scorecards, and native MCP integration for AI agents.

An AI-powered shopper assistant that provides a live cursor to guide website visitors, point out products, and display price calculations.

Yap is a blazing-fast, open-source voice dictation app for macOS that runs entirely on-device, with no cloud, no API keys, and no account needed.

Self-hostable sandbox SDK for AI agents that provides isolated environments with key management and egress control on your own hardware.

Open-source desktop app to manage multiple project workspaces simultaneously, keeping terminals and AI coding agents running across projects with instant switching.

OpenSorSe is an open-source, multi-platform AI-assisted file organizer that scans, searches, and organizes files with local-first privacy and optional Ollama AI suggestions.

A macOS menu-bar app that gives AI agents the ability to draw directly on your screen via MCP.

A local dashboard that attaches to every Claude Code, Codex, Cursor, Antigravity, Kilo Code, and Kimi Code session on your machine for parallel coding workflows.

A desktop app that transforms AI coding agents into a visual Kanban build loop for feature development with human review.

Rescript is an open-source, transcript-based video and audio editor that runs fully in the browser with offline AI transcription.

Authorization for AI agents that binds human approval to exact payloads before execution.

Hubo is an AI code review tool that uses two sparring agents to reconcile every finding before presenting results to the developer.

Turn text into natural-sounding speech entirely in your browser — no server upload, using ONNX Runtime Web and Inflect TTS v2.

Private, context-aware dictation for Mac that transcribes and rewrites speech using on-device AI.

A local-first terminal coding agent that orchestrates specialized sub-agents for wide coding tasks, supporting parallel workflows, model routing, and web search.

A lightweight, high-performance LLM proxy for caching, failover, cost tracking, and seamless integration between local and cloud AI providers.

An open-source macOS video editor built for AI, with Metal-accelerated effects and AI-powered color grading.

Open-source credential gateway and secret vault that lets AI agents access APIs without exposing keys.

An open-source utility that keeps your Claude Code prompt cache warm to avoid costly re-encodings when subagents run longer than five minutes.

Self-hosted MCP knowledge server that makes any AI fluent in your company data with read-only queries and evolving context.

Millwright is an open-source, self-hosted LLM router that routes AI requests to the lowest-cost model providers based on policy, preserving prompt caches and controlling spend.

Self-hosted network monitor that runs hourly speed tests, LAN device scans, logs to SQLite, and delivers sarcastic AI-generated reports to Telegram.

Runtime control for production AI agents to stop them before they send, spend, or execute, with open-source policy enforcement.

An on-device AI model that provides confidence scores for each answer, enabling intelligent cloud handoff for improved accuracy.

An open-source AI agent video editor that lets you describe the cut and the agent edits the timeline with captions, music, transitions, and more.

Fast, open-source AI email client for Windows with native performance and optional AI assistant.

Ditto is an open-source deterministic website cloner that converts any site into clean, componentized Next.js or Vite code.

SHACKLE is a runtime governance layer and conformance standard for autonomous AI agents, enforcing guardrails, budget/loop limits, and policy constraints in real time.

An open-source pipeline for creating short films (5–12 minutes) using AI tools for video, images, voices, and music.

Rewisp is an on-device ambient memory for Mac that captures text from your screen and lets you ask anything about your past activity, automatically surfacing promises, changes, and summaries while keeping everything private.

Open-source platform for real-time AI agent security, auditing skills and runtime with community-driven threat rules.

OpenSEO is an open source SEO platform that integrates with AI agents via MCP to provide real SEO data for keyword research, competitor analysis, backlinks, and more.

An open-source cost controller for AI agent loops that stops loops when converged and rolls back before degradation.

A specialized local inference engine for large language models, optimized for Apple Silicon and SSD streaming on memory-constrained systems.

Open-source tool running specialized AI agents to review code, sync docs, perform deep QA testing, and distill repository knowledge on a schedule.

Open-source CLI, debug agents, and browser tools for building and maintaining reliable web integrations.

Local-first AI operator that controls your Windows PC, files, shell, apps, browser, and desktop, with voice and memory, all on your machine.

Wolbarg is a local-first TypeScript SDK providing shared semantic memory for AI agents using SQLite or PostgreSQL.

An open-source Python framework for building agentic AI applications with server-driven UI, native observability, sandboxing, and pluggable model orchestration.

PokeTokenBar turns your AI coding tokens into a Pokémon companion in the macOS menu bar, tracking usage and gamifying evolution.

Open-source AI app builder that turns a prompt into a full-stack Next.js web app with built-in hosting, sandbox, database, auth, and more.

An open-source QA agent that reads codebases, derives business flows, and runs end-to-end tests across frontend and backend.

Open-source context engineering layer for AI agents that reduces token usage by ~80% and improves accuracy by selectively providing relevant tools and skills.

Nous centralizes the data scattered across your GTM tools into one context graph, resolving every person and company into a single record your agents read in one call.

Paste a public domain to get scroll-stopping, on-brand ads in seconds.

Open-source PR alignment reviewer that checks whether every GitHub PR matches the linked Linear issue and sprint intent before merge.

Disposable, network-restricted Linux VMs for AI coding agents — give each agent its own machine instead of yours.