Best Open Source Tools (Free) in 2026
26 free open source products, ranked by community upvotes.
MapFlip
Redirect Apple Maps links to Google Maps on Android.
Thuki
Private, local AI secretary overlay for macOS — summon with double‑tap Control
FocusClaw
Local-first, context-aware task manager for OpenClaw & Hermes AI agents
Pivvi
Save work when an AI caps out and find the best free AI
ServerKit
Lightweight server control panel to deploy, manage, and monitor apps and services.
Calculate My Heart Rate
Calculate 5 personalized heart rate training zones using the Karvonen formula.
The Model Harness Cordis Split
Open-source agent harness where every capability is a swappable plugin.
memu-memory
Persistent personal memory as a wiki across sessions, agents and devices.
The Shy Dock
Auto-hides your macOS Dock on laptop; returns when an external monitor is connected
DS4Windows
Use PlayStation DualShock/DualSense controllers on Windows by emulating an Xbox controller.
YouTube to WAV
Convert YouTube videos to lossless WAV files online — fast, free, no signup.
FlowPick
Privacy-first browser extension to detect and download HLS/DASH, video, audio & images.
BucketStack
Native open-source S3 desktop manager with hardware-bound security & built-in code editor.
AI Hermes Agent
Personal, local-first AI assistant with an easy cross-platform installer
Textunnel
P2P cross-device file sharing & clipboard sync — no upload, no signup
RepoRanker
Collect 800+ character peer reviews and rank open-source GitHub repos.
Cicada
Minimal circular progress/percentage UI demo built with HTML/CSS/JS
broop
Match with gamers who share your games, platforms, and schedule.
Rhyme It
Instant perfect and near rhyme search for songwriters, poets, and rappers
Clearcote
Open-source, de-Googled Chromium with engine-level fingerprint controls
Vibe Coding Agent Skills
110 free agent skills for Cursor, Claude Code and 40+ AI tools — copy, paste, ship.
Tiny11
Lightweight, debloated Windows 11 ISO and builder for older PCs (no TPM required)
Facts
Verify specs and track implementations with AI agents and executable facts
NBTExplorer
Free, open-source graphical editor for Minecraft NBT world and player data