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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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Windshift
Sent
Docmost
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InfluxDB
Openlane
ScreenshotOne
CodeRabbit
Sevalla
Capture
Favicon of Pearcleaner

Pearcleaner

Remove Mac apps and all their leftover files

  • Stars

    14,609

  • Last commit

    3 months ago

  • License

    Unknown
Mac app uninstaller that finds and removes associated files, orphaned leftovers, and development artifacts across macOS 13 and later.

Open Source Alternative to:

Favicon of CCleaner
CCleaner
Favicon of Notesnook

Notesnook

Zero-knowledge encrypted notes that sync across all devices

  • Stars

    14,592

  • Last commit

    16 hours ago

  • License

    GPL-3.0
End-to-end encrypted note-taking app with zero-knowledge architecture, cross-device sync, web clipper, and a self-hostable sync server.

Open Source Alternative to:

Favicon of Notion
Notion
Favicon of Scira

Scira

AI
Minimalistic AI-powered search engine for instant answers

  • Stars

    11,886

  • Last commit

    1 month ago

  • License

    AGPL-3.0
Scira delivers concise, AI-generated responses to queries using a clean interface and powerful search capabilities.

Open Source Alternative to:

Favicon of Perplexity
Perplexity
Favicon of Bytebase

Bytebase

Secure and streamline database changes with CI/CD automation

  • Stars

    14,483

  • Last commit

    5 hours ago

  • License

    MIT
Comprehensive platform for database schema migrations, security controls, and data masking with built-in review workflows and GitOps integration.
Favicon of Logstash

Logstash

Centralize, transform, and stash your data

  • Stars

    14,940

  • Last commit

    5 hours ago

  • License

    Unknown
Logstash is a free and open server-side data processing pipeline that ingests data from multiple sources, transforms it, and sends it to your desired destination.

Open Source Alternative to:

Favicon of DataDog
DataDog
Favicon of Apache Druid

Apache Druid

Real-time analytics database for sub-second OLAP queries

  • Stars

    14,052

  • Last commit

    10 hours ago

  • License

    Apache-2.0
Columnar, time-indexed analytics database built for streaming and batch data at scale, handling billions to trillions of rows with millisecond query response times.

Open Source Alternative to:

Favicon of Snowflake
Snowflake
Favicon of PeerTube

PeerTube

Decentralized video platform for true digital freedom

  • Stars

    15,313

  • Last commit

    10 hours ago

  • License

    AGPL-3.0
Create your own video hosting platform with PeerTube - a free, open-source alternative to YouTube. Join 600,000+ videos across 1,000+ interconnected platforms without ads or tracking.

Open Source Alternative to:

Favicon of YouTube
YouTube
Favicon of Omnigent

Omnigent

AI
Common layer for composing and governing AI agents

  • Stars

    9,943

  • Last commit

    5 hours ago

  • License

    Apache-2.0
Meta-harness that sits above Claude Code, Codex, and other AI agents to add policy enforcement, sandboxing, and real-time collaborative sessions.

Open Source Alternative to:

Favicon of Claude Managed Agents
Claude Managed Agents
Favicon of Convex

Convex

Build full-stack apps with TypeScript and real-time sync

  • Stars

    12,546

  • Last commit

    6 hours ago

  • License

    Unknown
Open-source reactive database that keeps your web and mobile apps in sync. Write everything in TypeScript with built-in auth, cron jobs, and AI integration.

Open Source Alternative to:

Favicon of Supabase
Supabase
Favicon of CocoIndex

CocoIndex

AI
Ultra-fast data transformation for AI with lineage

  • Stars

    11,548

  • Last commit

    12 hours ago

  • License

    Apache-2.0
Open-source ETL framework built in Rust for AI workloads. Features incremental processing, data lineage, and observability tools for semantic search and RAG applications.

Open Source Alternative to:

Favicon of Pipedream
Pipedream
Favicon of Fumadocs

Fumadocs

Build beautiful documentation sites with Next.js

  • Stars

    13,134

  • Last commit

    12 hours ago

  • License

    MIT
A flexible Next.js framework for creating stunning documentation sites with MDX support, built-in search, and customizable components.

Open Source Alternative to:

Favicon of Mintlify
Mintlify
Favicon of Keep

Keep

Unify, automate, and elevate your monitoring workflow

  • Stars

    12,313

  • Last commit

    1 day ago

  • License

    MIT
Open-source platform for centralizing alerts, automating responses, and enhancing incident management across your tech stack.

Open Source Alternative to:

Favicon of Opsgenie
Opsgenie
Favicon of Typebot

Typebot

Create powerful chatbots without coding

  • Stars

    10,323

  • Last commit

    11 hours ago

  • License

    Unknown
Design, build, and deploy interactive chatbots with a visual editor. Integrate easily and collect data effortlessly.

Open Source Alternative to:

Favicon of Manychat
Manychat
Favicon of Cachet

Cachet

Professional status page system for transparent downtime communication

  • Stars

    15,235

  • Last commit

    8 days ago

  • License

    Unknown
Open-source status page platform that helps organizations communicate system status and incidents effectively with customizable components and metrics tracking

Open Source Alternative to:

Favicon of incident.io
incident.io
Favicon of MonoGame

MonoGame

Free, open-source framework for cross-platform game development

  • Stars

    14,417

  • Last commit

    9 hours ago

  • License

    Unknown
Build games in C# that run on Windows, macOS, Linux, iOS, Android, and major consoles. No royalties, no subscriptions, no runtime fees.

Open Source Alternative to:

Favicon of Unity
Unity
Favicon of Lemmy

Lemmy

Build your own federated discussion community

  • Stars

    14,594

  • Last commit

    3 days ago

  • License

    AGPL-3.0
Open-source forum and link aggregator that connects communities across the fediverse. Self-hosted, ad-free, with powerful moderation tools and federation.

Open Source Alternative to:

Favicon of Reddit
Reddit
Favicon of Fluxer

Fluxer

Open source messaging with privacy and community focus

  • Stars

    10,290

  • Last commit

    5 hours ago

  • License

    AGPL-3.0
Free, open-source instant messaging and VoIP platform with full Markdown support, voice/video calls, moderation tools, and self-hosting options for communities.

Open Source Alternative to:

Favicon of Discord
Discord
Favicon of Portkey AI Gateway

Portkey AI Gateway

AI
Complete production stack for AI teams

  • Stars

    12,989

  • Last commit

    4 months ago

  • License

    MIT
Comprehensive AI platform with gateway, observability, guardrails, and prompt management. Access 1,600+ LLMs via unified API with enterprise-grade security.

Open Source Alternative to:

Favicon of Cloudflare AI Gateway
Cloudflare AI Gateway
Favicon of Gumroad

Gumroad

Your all-in-one marketplace for digital creators and products

  • Stars

    9,687

  • Last commit

    5 hours ago

  • License

    MIT
A digital marketplace platform where creators can sell digital products, from courses to software, with built-in payment processing and content delivery.

Open Source Alternative to:

Favicon of Stripe
Stripe
Favicon of Filestash

Filestash

Unified file management for your enterprise storage

  • Stars

    14,667

  • Last commit

    6 hours ago

  • License

    AGPL-3.0
Filestash is an open-source file manager that integrates with multiple storage backends, authentication systems, and offers customization options.

Open Source Alternative to:

Favicon of Google Drive
Google Drive
Favicon of Shotcut

Shotcut

A free, open source, cross-platform video editor

  • Stars

    15,204

  • Last commit

    21 hours ago

  • License

    GPL-3.0
Free, open-source video editor supporting 4K resolution, hundreds of formats, and professional features like Blackmagic Design integration across Windows, Mac, and Linux.

Open Source Alternative to:

Favicon of CapCut
CapCut
Favicon of LanguageTool

LanguageTool

AI-powered grammar checker for 30+ languages

  • Stars

    15,037

  • Last commit

    1 day ago

  • License

    LGPL-2.1
Check grammar, punctuation, and spelling errors instantly with AI-powered technology. Supports 30+ languages with browser extensions and desktop apps.

Open Source Alternative to:

Favicon of Grammarly
Grammarly
Favicon of Blinko

Blinko

AI-Powered Note Taking App

  • Stars

    11,011

  • Last commit

    19 days ago

  • License

    GPL-3.0
The next generation of open-source AI-powered card notes designed to help you quickly capture and organize inspiration so that ideas never run out.

Open Source Alternative to:

Favicon of Notion
Notion
Favicon of Seafile

Seafile

Self-hosted file sync with AI-powered organization

  • Stars

    15,241

  • Last commit

    18 days ago

  • License

    Unknown
Open source file sync and sharing platform with custom properties, AI automation, collaborative editing, and enterprise-grade security for teams.

Open Source Alternative to:

Favicon of Google Drive
Google Drive
Favicon of Zotero

Zotero

Collect, organize, cite, and share research in one place

  • Stars

    15,272

  • Last commit

    8 hours ago

  • License

    Unknown
Reference manager that captures sources from the web, organizes them with tags and collections, and generates citations in 9,000+ styles for Word, LibreOffice, and Google Docs.

Open Source Alternative to:

Favicon of EndNote
EndNote
Favicon of TinaCMS

TinaCMS

Visual editing for your Git-based content

  • Stars

    13,795

  • Last commit

    18 hours ago

  • License

    Apache-2.0
A headless CMS that simplifies content management with real-time editing, Git-based workflows, and developer-friendly customization.

Open Source Alternative to:

Favicon of WordPress
WordPress
Favicon of Sink

Sink

Simple, speedy, and secure link shortener with analytics

  • Stars

    7,117

  • Last commit

    26 days ago

  • License

    AGPL-3.0
A serverless link shortener that runs entirely on Cloudflare, offering URL compression, analytics, and customizable slugs.

Open Source Alternative to:

Favicon of TinyURL
TinyURL
Favicon of Checkmate

Checkmate

Beautiful open-source monitoring for modern infrastructure

  • Stars

    10,807

  • Last commit

    8 hours ago

  • License

    AGPL-3.0
Monitor servers, websites, Docker containers, and infrastructure with real-time insights, instant alerts, and powerful analytics. Self-hosted solution.

Open Source Alternative to:

Favicon of BetterStack
BetterStack
Favicon of OpenReplay

OpenReplay

Self-hosted session replay with complete data control

  • Stars

    12,849

  • Last commit

    9 hours ago

  • License

    AGPL-3.0
Open-source session replay and product analytics platform you can self-host for complete control over data security, privacy, and compliance.

Open Source Alternative to:

Favicon of Amplitude
Amplitude
Favicon of Element

Element

Secure, decentralized messaging for teams and individuals

  • Stars

    13,453

  • Last commit

    8 hours ago

  • License

    AGPL-3.0
Open-source platform for encrypted communication, file sharing, and collaboration based on the Matrix protocol.

Open Source Alternative to:

Favicon of Discord
Discord
Favicon of Arize Phoenix

Arize Phoenix

AI
Open-source LLM tracing & evaluation for AI optimization

  • Stars

    11,458

  • Last commit

    5 hours ago

  • License

    Elastic-2.0
Open-source platform for LLM tracing, evaluation, and optimization. Features automatic instrumentation, prompt playground, and real-time AI application monitoring.

Open Source Alternative to:

Favicon of LangSmith
LangSmith
Favicon of Ory

Ory

A certified and battle-tested identity solution

  • Stars

    13,877

  • Last commit

    2 months ago

  • License

    Apache-2.0
Ory is a certified and battle-tested identity solution backed by a large open source community and trusted by Fortune 500 companies.

Open Source Alternative to:

Favicon of Auth0
Auth0
Favicon of Planka

Planka

Self-hosted Kanban board with real-time collaboration

  • Stars

    12,546

  • Last commit

    2 days ago

  • License

    Unknown
Self-hosted Kanban board for agile teams. Unlimited boards, real-time sync, GDPR-compliant, and available as a free Community Edition or paid Pro.

Open Source Alternative to:

Favicon of Jira
Jira
Favicon of Morphic

Morphic

AI
AI-powered answer engine with dynamic interface generation

  • Stars

    9,117

  • Last commit

    6 hours ago

  • License

    Apache-2.0
Open-source answer engine that dynamically generates UI components while providing AI-powered responses, combining conversational AI with interactive interfaces.

Open Source Alternative to:

Favicon of Claude
Claude
Favicon of Nango

Nango

Build product integrations with 500+ APIs in hours

  • Stars

    12,049

  • Last commit

    5 hours ago

  • License

    Elastic-2.0
Complete integrations platform with 500+ pre-built APIs, code-first approach, unified data models, and enterprise-grade security. Free tier available.

Open Source Alternative to:

Favicon of Pipedream
Pipedream
Favicon of Kap

Kap

Effortless screen recording for macOS

  • Stars

    19,352

  • Last commit

    2 years ago

  • License

    MIT
Capture, edit, and share your screen with ease. Create stunning GIFs and videos for tutorials, demos, and bug reports.

Open Source Alternative to:

Favicon of Loom
Loom
Favicon of Automatisch

Automatisch

Open-source integration platform for seamless workflows

  • Stars

    13,967

  • Last commit

    7 months ago

  • License

    Unknown
Self-hosted automation tool that connects your apps and services, enabling powerful integrations and efficient data flow across your ecosystem.

Open Source Alternative to:

Favicon of n8n
n8n
Favicon of Unleash

Unleash

Feature flags for rapid, risk-free software deployment

  • Stars

    13,806

  • Last commit

    8 hours ago

  • License

    AGPL-3.0
A powerful feature management platform enabling gradual rollouts, A/B testing, and seamless integration for continuous delivery.

Open Source Alternative to:

Favicon of LaunchDarkly
LaunchDarkly
Favicon of Anarlog

Anarlog

AI
Private meeting notes, no bots, files you own

  • Stars

    9,307

  • Last commit

    6 hours ago

  • License

    MIT
Records system audio without joining your call, then turns rough notes into editable summaries. Audio, transcripts, and notes stay as local files.

Open Source Alternative to:

Favicon of Granola
Granola
Favicon of Encore

Encore

Accelerate backend development with effortless scalability

  • Stars

    12,354

  • Last commit

    5 days ago

  • License

    MPL-2.0
A powerful platform for building cloud backends, automating infrastructure, and simplifying development workflows for faster, more efficient coding.

Open Source Alternative to:

Favicon of Supabase
Supabase
Favicon of Sure.am

Sure.am

The personal finance app for everyone

  • Stars

    9,914

  • Last commit

    5 hours ago

  • License

    AGPL-3.0
An all-in-one personal finance platform. Track, optimize, grow, and manage your money through every stage of life.

Open Source Alternative to:

Favicon of YNAB
YNAB
Favicon of UnoPim

UnoPim

AI-powered PIM for managing product catalogs at scale

  • Stars

    10,962

  • Last commit

    19 hours ago

  • License

    MIT
Open source Product Information Management system with an AI agent for catalog enrichment, bulk updates, multilingual content, and omnichannel distribution.

Open Source Alternative to:

Favicon of Akeneo
Akeneo
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Favicon of Claude Code

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Favicon of Spotify

Spotify

Access millions of songs, podcasts, and playlists instantly with personalized recommendations and offline listening across all your devices.
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Free video editing app that lets you create professional-quality videos with advanced editing tools, effects, and templates for social media and beyond.
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Create fully functional applications by describing your idea, with AI-powered code generation and beautiful design
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