Open Source Alternatives to Popular Software
Over 1 million users replaced their proprietary tools with open source software. Discover the best alternatives and join the movement.
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Real-time work and project management platform
Stars
606Last commit
5 hours agoLicense
AGPL-3.0
Ever Teams offers an all-in-one solution for work management, time tracking, and team collaboration with integrations for popular tools.
Open Source Alternative to:
Visual regression testing for seamless UI development
Stars
Stars growing over the last 30 days660Last commit
10 hours agoLicense
MIT
Automate visual testing, catch UI bugs early, and collaborate effortlessly with your team to maintain pixel-perfect interfaces.
Open Source Alternative to:
Self-hosted project management with boards and test tracking
Stars
Stars growing quickly over the last 30 days428Last commit
8 hours agoLicense
AGPL-3.0
Self-hosted, open-source project management tool with boards, milestones, portals, time tracking, and test management on your own infrastructure.
Open Source Alternative to:
Open-source feedback boards, roadmaps and changelogs
Stars
Stars growing quickly over the last 30 days357Last commit
7 hours agoLicense
AGPL-3.0
Collect, prioritize and act on user feedback. Public boards, roadmaps and changelogs show users what you're planning and what has shipped.
Open Source Alternative to:
Federated short videos without corporate control
Stars
468Last commit
14 hours agoLicense
AGPL-3.0
Open-source, decentralized short-video platform that gives creators control. No ads, no lock-in, built on ActivityPub for true community ownership.
Open Source Alternative to:
Open-source CMS for text-driven websites
Stars
623Last commit
8 days agoLicense
MIT
Create manuals, documentation, and websites with this markdown-based content management system, with options for ebook conversion.
Open Source Alternative to:
Open source financial infrastructure for modern businesses
Stars
533Last commit
4 days agoLicense
MIT
Build custom financial flows and integrate with any provider using Formance's agnostic platform
Open Source Alternative to:
Self-hostable image and video delivery with URL transforms
Stars
Stars growing over the last 30 days428Last commit
7 days agoLicense
AGPL-3.0
Upload, transform, and deliver images and videos via a REST API and URL parameters, using your own S3-compatible storage. Cloudinary-compatible syntax, no vendor lock-in.
Open Source Alternative to:
Open-source GraphQL federation platform
Stars
483Last commit
6 hours agoLicense
MIT
A fully open-source schema registry, analytics, and gateway for GraphQL federation and APIs
Open Source Alternative to:
AI governance made simple, secure, and compliant
Stars
Stars growing over the last 30 days375Last commit
6 hours agoLicense
AGPL-3.0
Open-source AI governance platform helping teams meet regulatory standards like EU AI Act and ISO 42001. Monitor model performance, manage risks, and maintain compliance with enterprise-grade security.
Open Source Alternative to:
Craft AAA web apps that delight your users
Stars
503Last commit
12 hours agoLicense
Apache-2.0
Visual web development engine combining design and development tools. Build immersive, interactive web experiences with component-based framework, real-time collaboration, and powerful visual editor.
Open Source Alternative to:
Simplify project management for developers
Stars
463Last commit
14 hours agoLicense
Apache-2.0
Shelve is a comprehensive project management tool designed to streamline workflows and enhance collaboration for developers and teams.
Open Source Alternative to:
End-to-end encrypted collaborative document editor
Stars
Stars growing over the last 30 days471Last commit
4 days agoLicense
AGPL-3.0
Write, organize, and collaborate in real-time with complete privacy and security. This app is an open-source, online/offline compatible, and AI-free alternative to Google Docs.
Open Source Alternative to:
AWS-compatible cloud APIs on infrastructure you control
Stars
Stars growing quickly over the last 30 days420Last commit
14 hours agoLicense
AGPL-3.0
Spinifex recreates EC2, S3, EBS, VPC, IAM, and more on your own hardware, so AWS-built software runs unchanged without touching a hyperscaler.
Open Source Alternative to:
Inspect, debug, and replay BullMQ queues visually
Stars
456Last commit
6 months agoLicense
MIT
Desktop app and embeddable dashboard for BullMQ that shows live queue metrics, job runs, FlowProducer graphs, and scheduler status without touching Redis directly.
Open Source Alternative to:
Simple, powerful web & product analytics for user insights
Stars
397Last commit
11 hours agoLicense
AGPL-3.0
Privacy-focused analytics platform combining web and product insights. Track user journeys, create funnels, and understand behavior with GDPR compliance and no cookies by default.
Open Source Alternative to:
Self-hosted AI coding agent that opens real PRs
Stars
Stars growing quickly over the last 30 days335Last commit
10 hours agoLicense
FCL-1.0
Source-available, self-hosted AI coding agent that connects to your repo, tools, and chat to investigate issues and open reviewable PRs on your own infrastructure.
Open Source Alternative to:
Simple content management for modern sites
Stars
386Last commit
4 days agoLicense
AGPL-3.0
A headless CMS designed for blogs, changelogs, and articles. Features intuitive editor, team collaboration, media management, and API integration.
Open Source Alternative to:
Web3 writing platform for content creators and crypto enthusiasts
Stars
490Last commit
1 month agoLicense
MIT
Sigle is a secure, open-source platform for Web3 writers to create, publish, and monetize content on the Bitcoin blockchain.
Open Source Alternative to:
Unified API, event, and AI agent management platform
Stars
470Last commit
5 hours agoLicense
Apache-2.0
Full-lifecycle API management platform that unifies synchronous and asynchronous ecosystems. Manage APIs, event streams, and AI agents with enterprise security and 4x faster gateway performance.
Open Source Alternative to:
Real-time event tracking and response for tech products
Stars
478Last commit
1 month agoLicense
AGPL-3.0
Track critical events, receive instant notifications, and respond to product activities with customizable webhooks and action buttons
Open Source Alternative to:
Fast, secure, and privacy-focused web browsing
Stars
Stars growing over the last 30 days420Last commit
9 days agoLicense
MPL-2.0
Midori Browser is a lightweight, fast, and secure browser that protects users' privacy, available for Windows, Linux, and Android.
Open Source Alternative to:
Open-source ideation tool for product feedback management
Stars
451Last commit
13 days agoLicense
Apache-2.0
ClearFlask is an open-source platform for collecting, analyzing, and acting on customer feedback to drive product development.
Open Source Alternative to:
Track and improve your brand's visibility in AI search
Stars
Stars growing quickly over the last 30 days239Last commit
6 hours agoLicense
MIT
Monitors how your brand appears across ChatGPT, Perplexity, Google AI Overviews, and other AI platforms, then turns those insights into prioritized content and optimization actions.
Open Source Alternative to:
Track coding time across 70+ editors, completely free
Stars
219Last commit
5 hours agoLicense
MIT
Free, open-source coding time tracker compatible with VS Code, JetBrains IDEs, vim, emacs and more. No limits, no paywalls - your data stays yours forever.
Open Source Alternative to:
Anonymous publishing with no accounts, tracking, or logins
Stars
Stars growing over the last 30 days336Last commit
2 days agoLicense
Unlicense
Self-hosted platform for publishing text anonymously. Write, get a link, share it. No accounts, no tracking, no edits after posting.
Open Source Alternative to:
Track your brand's visibility across AI answer engines
Stars
270Last commit
29 days agoLicense
AGPL-3.0
GEO tool that queries ChatGPT, Claude, Gemini, and Perplexity with your buyers' questions, then shows you who gets recommended and how to close the gap.
Open Source Alternative to:
Professional link management for modern teams
Stars
344Last commit
2 months agoLicense
AGPL-3.0
Open-source platform for creating shortened URLs with advanced analytics, custom domains, and API integration for marketing and development teams.
Open Source Alternative to:
Low-code and no-code platform for business apps
Stars
389Last commit
8 hours agoLicense
AGPL-3.0
Full-stack open source platform combining no-code and low-code studios to build, deploy, and integrate web, mobile, and desktop business applications.
Open Source Alternative to:
Create stunning forms with AI-powered builder and analytics
Stars
355Last commit
6 months agoLicense
MIT
Build beautiful, interactive forms with AI assistance. Open-source alternative to Google Forms with unlimited submissions, advanced analytics, and seamless integrations.
Open Source Alternative to:
Community-driven platform built for transparency
Stars
400Last commit
2 days agoLicense
AGPL-3.0
Open-source communication platform with multi-window chat, economy systems, and privacy-first approach. Built by communities for superior performance.
Open Source Alternative to:
Build lasting communities with modern forum technology
Stars
Stars growing over the last 30 days350Last commit
2 days agoLicense
MPL-2.0
Create permanent, discoverable communities with modern forum features. Combines discussion, curation, and wiki functionality in one platform.
Open Source Alternative to:
Experiment tracking platform for ML teams
Stars
393Last commit
8 months agoLicense
Apache-2.0
Open source ML experiment tracking platform with parameter and gradient logging, media tracking, real-time alerts, and full Weights & Biases API compatibility.
Open Source Alternative to:
Track your brand's presence in AI-generated answers
Stars
Stars growing quickly over the last 30 days257Last commit
17 hours agoLicense
MIT
Runs prompts through ChatGPT, Perplexity, Gemini, Claude, and Google AI Overview interfaces via browser automation, then analyzes captured responses and citations with a model endpoint you configure.
Open Source Alternative to:
Deploy web apps with automated CI/CD and full infrastructure control
Stars
267Last commit
16 hours agoLicense
GPL-3.0
Self-hosted platform for web applications offering automated CI/CD pipelines, multiple environments, and Git integration - with 47% infrastructure cost savings.
Open Source Alternative to:
OTA updates for Capacitor apps without app store delays
Stars
213Last commit
8 hours agoLicense
AGPL-3.0
Live update platform for Ionic and Capacitor apps that pushes JavaScript, CSS, and asset changes to devices in minutes, with channels, rollback, and release analytics.
Open Source Alternative to:
Decentralized CAPTCHA for enhanced web security
Stars
303Last commit
8 hours agoLicense
Apache-2.0
A blockchain-based CAPTCHA solution offering improved security, user experience, and resistance to bot attacks for web applications.
Open Source Alternative to:
Seamless data import for your applications
Stars
295Last commit
2 months agoLicense
MIT
Open-source solution for effortless data importing, mapping, and validation in web applications
AI-powered open-source CRM with flexible automation
Stars
221Last commit
9 hours agoLicense
AGPL-3.0
Open-source CRM alternative with AI agents, n8n automation, and GDPR compliance. Ready in 2 minutes with transparent pricing and no feature bloat.
Open Source Alternative to:
Distraction-free note-taking with powerful features
Stars
322Last commit
29 days agoLicense
AGPL-3.0
A customizable, offline-first note editor that lets you format text, create lists, add images, and export to HTML - all while maintaining your privacy.
Open Source Alternative to:
Connect APIs, databases, and streams without glue code
Stars
363Last commit
5 months agoLicense
Unknown
Automated data integration platform that connects APIs, databases, and event streams using semantic schemas. Deploy secure integrations in minutes with Git-based workflows.
Open Source Alternative to:
Track and improve your brand's visibility in AI answers
Stars
Stars growing quickly over the last 30 days209Last commit
6 hours agoLicense
MIT
Tracks how often AI tools like ChatGPT, Claude, and Perplexity mention or cite your brand, then fixes the gaps through AEO strategy and content work.
Open Source Alternative to:
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Postiz – The All-in-One agentic social media scheduling tool
Openlane
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