Open Source JavaScript Software & Tools
Discover the best open source software and alternatives built with JavaScript. Explore top tools, compare features, and find the right solution.

Strapi
Open-source headless CMS built with JavaScript and TypeScript — fully customizable and developer-first. Self-hostable alternative to WordPress and Contentful.
WordPress
VoiceStudio
Fully local voice cloning, dubbing, dictation, and transcription in one desktop app - an open-source ElevenLabs replacement.
ElevenLabs
Uptime Kuma
Self-hosted uptime monitoring tool with a polished UI, 90+ notification integrations, and built-in public status pages.
UptimeRobot
Beekeeper Studio
Modern and easy to use SQL client for MySQL, Postgres, SQLite, SQL Server, and more. Linux, MacOS, and Windows.
SQLPro Studio
SearXNG
A free internet metasearch engine which aggregates results from various search services without tracking or profiling users.
Google Search
CubeTrek
Open-source GPS track manager with 3D topography visualization for outdoor activities.
Strava
CapRover
CapRover is a scalable self-hosted PaaS with one-click apps, Docker Swarm clustering, automatic TLS, and a friendly web UI for deploying apps and databases in seconds.

Plane
Open-source project management platform — an alternative to Jira, Linear, Monday, and ClickUp.
Jiratududi
Self-hosted task management that combines personal todo lists with powerful project organization. Built for individuals and teams who value privacy and control.
Todoist
OpenSpeedTest
Free and open-source HTML5 network performance estimation tool using only built-in web APIs — no third-party frameworks required.
Speedtest by Ookla
FlatPress
FlatPress is a lightweight, easy-to-set-up flat-file blogging engine.
WordPress
Kutt
Kutt is a modern, open-source URL shortener with custom domains, detailed click analytics, password-protected links, team management, and a clean developer API. Easy to self-host.
Bitly
Bruno
Opensource IDE For Exploring and Testing API's (lightweight alternative to Postman/Insomnia)
FableCut
FableCut is a zero-dependency, browser-based video editor designed for humans and AI agents. Drive edits via JSON timelines, the MCP protocol, or a clean REST API on any platform.
Adobe Premiere Pro
Swetrix
Privacy-first, cookie-less web analytics with speed monitoring and error tracking.
Google Analytics
LibreSpeed
Self-hosted speed test with easy setup, supports PHP and Node.js backends, mobile-friendly, and highly configurable.
Speedtest by Ookla
EspoCRM
Open source CRM platform for managing contacts, leads, sales pipelines, and customer relationships.
Salesforce
miniPaint
Online image editor with layers, filters, and effects that runs entirely in the browser. An open source Photoshop alternative with no ads or account required.
Adobe Photoshop
Postiz
Open-source social media scheduler with AI assistance, cross-platform posting, and team collaboration — self-hostable alternative to Buffer and Hootsuite.
Buffer
Juggler
A self-hostable, GUI-first AI coding agent with editable conversation trees, plugin-based tools, and multi-client sessions.
Cursor
OpenPanel
Openpanel is an open-source web and product analytics platform that combines the power of Mixpanel with the ease of Plausible and one of the best Google Analytics replacements.
Mixpanel
Android Webcam System
Turn your Android phone into a 4K webcam via USB or WiFi with an open-source desktop client and mobile app.
DroidCamSpeakr
Self-hosted AI transcription and intelligent note-taking platform that turns audio recordings into organized, searchable notes with speaker identification.
Otter.ai
Templatical
Open-source drag-and-drop email editor with JSON templates, MJML rendering, and framework-agnostic embedding.
BeeFree
Home Gallery
Self-hosted open-source web gallery for photos and videos with AI-powered image discovery, face detection, and tagging.
Google Photos