OpenAltFinder

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

Strapi

🚀 Strapi is the leading open-source headless CMS. It’s 100% JavaScript/TypeScript, fully customizable, and developer-first.

Alternative to:
WordPressWordPress
Uptime Kuma

Uptime Kuma

Self-hosted uptime monitoring tool with a polished UI, 90+ notification integrations, and built-in public status pages.

Alternative to:
UptimeRobotUptimeRobot
Beekeeper Studio

Beekeeper Studio

Modern and easy to use SQL client for MySQL, Postgres, SQLite, SQL Server, and more. Linux, MacOS, and Windows.

Alternative to:
SQLPro StudioSQLPro Studio
SearXNG

SearXNG

A free internet metasearch engine which aggregates results from various search services without tracking or profiling users.

Alternative to:
Google SearchGoogle Search
CubeTrek

CubeTrek

Open-source GPS track manager with 3D topography visualization for outdoor activities.

Alternative to:
StravaStrava
CapRover

CapRover

Scalable self-hosted PaaS with one-click apps and Docker Swarm clustering.

Alternative to:
VercelVercel
Plane

Plane

Open-source project management platform — an alternative to Jira, Linear, Monday, and ClickUp.

Alternative to:
JiraJira
tududi

tududi

Self-hosted task management that combines personal todo lists with powerful project organization. Built for individuals and teams who value privacy and control.

Alternative to:
TodoistTodoist
OpenSpeedTest

OpenSpeedTest

Free and open-source HTML5 network performance estimation tool using only built-in web APIs — no third-party frameworks required.

Alternative to:
Speedtest by OoklaSpeedtest by Ookla
FlatPress

FlatPress

FlatPress is a lightweight, easy-to-set-up flat-file blogging engine.

Alternative to:
WordPressWordPress
Kutt

Kutt

A modern, free, and open-source URL shortener with custom domains, analytics, and a clean API.

Alternative to:
BitlyBitly
Bruno

Bruno

Opensource IDE For Exploring and Testing API's (lightweight alternative to Postman/Insomnia)

Alternative to:
PostmanPostman
Swetrix

Swetrix

Privacy-first, cookie-less web analytics with speed monitoring and error tracking.

Alternative to:
Google AnalyticsGoogle Analytics
LibreSpeed

LibreSpeed

Self-hosted speed test with easy setup, supports PHP and Node.js backends, mobile-friendly, and highly configurable.

Alternative to:
Speedtest by OoklaSpeedtest by Ookla
EspoCRM

EspoCRM

Open source CRM platform for managing contacts, leads, sales pipelines, and customer relationships.

Alternative to:
SalesforceSalesforce
miniPaint

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.

Alternative to:
Adobe PhotoshopAdobe Photoshop
 Postiz

Postiz

📨 The ultimate social media scheduling tool, with a bunch of AI 🤖

Alternative to:
BufferBuffer
OpenPanel

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.

Alternative to:
MixpanelMixpanel
Android Webcam System

Android Webcam System

Turn your Android phone into a 4K webcam via USB or WiFi with an open-source desktop client and mobile app.

Alternative to:
DroidCamDroidCam
Speakr

Speakr

Self-hosted AI transcription and intelligent note-taking platform that turns audio recordings into organized, searchable notes with speaker identification.

Alternative to:
Otter.aiOtter.ai
Templatical

Templatical

Open-source drag-and-drop email editor with JSON templates, MJML rendering, and framework-agnostic embedding.

Alternative to:
BeeFreeBeeFree
Home Gallery

Home Gallery

Self-hosted open-source web gallery for photos and videos with AI-powered image discovery, face detection, and tagging.

Alternative to:
Google PhotosGoogle Photos
Flowise

Flowise

Flowise is an open-source, visual, low-code/no-code tool designed to help users build AI agents and sophisticated LLM-powered workflows through a drag-and-drop interface. It features a Node.js backend and a React frontend, along with modular components for integrations and API documentation—making it accessible to both developers and non-technical users.

Alternative to:
MakeMake
shapez.io

shapez.io

Open source base-building and factory-automation puzzle game inspired by Factorio — extract, cut, rotate, and combine shapes on an infinite map.

Alternative to:
FactorioFactorio
Tinode

Tinode

Instant messaging platform with self-hosted backend in Go and clients for iOS, Android, web, and command line.

Alternative to:
WhatsAppWhatsApp