Open Source Alternatives
  • Alternatives
  • Categories
    Categories by size1,030 projects
    • Developer Tools527
    • AI & Machine Learning455
    • Business & Productivity237
    • Web Development203
    • Security & Monitoring153
    • Communication & Collaboration138
    • IT Management137
    • Cloud & Hosting122
    • LLMOps & AI Tooling119
    • Data & Analytics112
    Browse all 21 categoriesDesign & Creative, Product & Project Management and 9 more
  • Blog
  • Advertise
SearchNotion, Slack, password manager.../
Submit
Open Source Alternatives
  • Alternatives
    • Developer Tools527
    • AI & Machine Learning455
    • Business & Productivity237
    • Web Development203
    • Security & Monitoring153
    • Communication & Collaboration138
    • Browse all 21 categories
  • Blog
  • Advertise
Submit your project

New open source projects by email

The projects we add and every new guide. Free, unsubscribe any time.

Open Source Alternatives LogoOpen Source Alternatives

Handpicked Open Source Alternatives to Paid Softwares

Product

  • Categories
  • Tag
  • Advertise

Resources

  • Blog
  • Collection
  • Submit

Company

  • Privacy Policy
  • Terms of Service
  • Refund Policy
  • Sitemap

Alternatives

  • Claude Code
  • Jira
  • Notion
  • Slack
  • Linear
  • Wispr Flow
  • All alternatives
© 2026 Open Source Alternatives. All rights reserved.
Open SourceAlternatives
15 people here now·42,727 visitors in the last 7 days

Open Source Alternatives to Paid Software

/
Alternative guides
Claude CodeJiraNotionSlackLinearWispr FlowArc
CapCutGrok BotSuperhumanAirtableMuseRailway

Featured

OpenClaw

Alternative toMuse

Self-hosted AI assistant for WhatsApp, Telegram, and more

  • 393,635 GitHub stars
  • MITLicence MIT
  • #AI Agents

rakazo

Sponsored

Alternative toGrok Bot

AI teammates you own: your keys, your model, your machine.

  • 6,568 GitHub stars
  • Apache-2.0Licence Apache-2.0
  • #AI Agents

God's Eye View

Alternative toFFlightradar24

Real-time global intelligence on a 3D globe

  • 62,094 GitHub stars
  • CustomLicence MIT with third-party data restrictions
  • #AI Agents

Windshift

Sponsored

Alternative toJira

Self-hosted work management for teams leaving Jira

  • 393 GitHub stars
  • AGPL-3.0Licence AGPL-3.0

SnitchFeed

Sponsored

Live monitoring on LinkedIn, X, Reddit & more. Agentic social listening for startups.

Marketing & Growth

Agent Reach

Alternative toFirecrawl

Give any AI agent internet access, free and local

  • 107,577 GitHub stars
  • MITLicence MIT
  • #AI Agents

Spotifast

Alternative toSpotify Premium

Spotify, native and fast, for Linux, macOS, and Windows.

  • 9,584 GitHub stars
  • MITLicence MIT
  • #macOS

REA (Reverse Engineer Anything)

Alternative toRevEng.AI

AI-powered reverse engineering for binaries, apps, and assemblies.

  • 418,752 GitHub stars
  • MITLicence MIT

Buzz

Alternative toSlack

Self-hosted team chat where people and AI agents work together

  • 36,652 GitHub stars
  • Apache-2.0Licence Apache-2.0
  • #Chat

It's a Plan

Sponsored

Alternative toLinear

Self-hosted issue tracker where people and AI agents share one board.

  • 2,121 GitHub stars
  • AGPL-3.0Licence AGPL-3.0

Inbox Zero

Sponsored

Alternative toSuperhuman

AI email assistant that drafts replies and clears your inbox

  • 12,889 GitHub stars
  • AGPL-3.0Licence AGPL-3.0
  • #Email

n8n

Alternative toZapier

Self-hosted workflow automation with 400+ node connectors

  • 209,269 GitHub stars

CleanYourTV

Alternative toATV Launcher Pro

Debloat any Android or Google TV over Wi-Fi and get an Apple TV-style home.

  • 48,047 GitHub stars
  • MIT LicenseLicence MIT License

paperclip

Alternative toGrok Bot

Self-hosted AI agent management with org charts and budgets

  • 109,899 GitHub stars
  • MITLicence MIT
  • #AI Agents

Hermes Agent

Alternative toGrok Bot

Self-hosted AI agent: persistent memory, multi-channel chat, model choice.

  • 259,499 GitHub stars
  • MITLicence MIT
  • #AI Agents

Advertise your product

Your product on a Sponsor card across the site, for 7 or 30 days.

Advertise

Trending open source projects this week

The projects gaining the most GitHub stars in the last seven days.

As of 4 Nov 2026

  1. 0101+29,572 stars this week

    REA (Reverse Engineer Anything)

    Featured

    AI-powered reverse engineering for binaries, apps, and assemblies.

    Alternative toRevEng.AI

    Alternative toRevEng.AI

    +29,572 stars this week427,551 GitHub stars
  2. 0202+8,589 stars this week

    Agent Desktop

    Desktop computer use for AI agents via OS accessibility tree

    InAI & Machine Learning

    InAI & Machine Learning

    +8,589 stars this week13,095 GitHub stars
  3. 0303+13,778 stars this week

    t3code

    Control your coding agents from one interface

    Alternative toConductor

    Alternative toConductor

    +13,778 stars this week44,657 GitHub stars
  4. 0404+9,350 stars this week

    CleanYourTV

    Featured

    Debloat any Android or Google TV over Wi-Fi and get an Apple TV-style home.

    Alternative toATV Launcher Pro

    Alternative toATV Launcher Pro

    +9,350 stars this week51,453 GitHub stars
  5. 0505+8,616 stars this week

    VoiceStudio

    Voice cloning, dubbing, and transcription that runs fully offline

    Alternative toElevenLabs

    Alternative toElevenLabs

    +8,616 stars this week100,201 GitHub stars
  6. 0606+8,567 stars this week

    DeepTutor

    Agentic framework for lifelong personalized tutoring

    Alternative toKhanmigo

    Alternative toKhanmigo

    +8,567 stars this week54,773 GitHub stars
  7. 0707+8,291 stars this week

    claude-mem

    Stop re-explaining your codebase to every new agent session

    Alternative toContextPool

    Alternative toContextPool

    +8,291 stars this week112,059 GitHub stars
  8. 0808+7,933 stars this week

    security-audit-skill

    Multi-phase security audits with machine-readable findings

    Alternative toSnyk

    Alternative toSnyk

    +7,933 stars this week58,295 GitHub stars
  9. 0909+7,873 stars this week

    Hallmark

    Design skill for coding agents with 48 themes, real photos and lint.

    InDesign & Creative

    InDesign & Creative

    +7,873 stars this week47,097 GitHub stars
  10. 1010+7,139 stars this week

    iFixAi

    Self-hosted AI agent auditing across 60 trust and safety inspections.

    Alternative toZenity

    Alternative toZenity

    +7,139 stars this week43,173 GitHub stars

New open source projects by email

The projects we add and every new guide. Free, unsubscribe any time.

Open source alternative guides

Long, ranked guides to open source software alternatives, each reviewed and dated by our editors.

Browse all 13 alternative guides

Claude Code open source alternatives

10 ranked · reviewed 15 Sept
  1. 1OpenCode223,829 GitHub stars
  2. 2oh-my-pi37,418 GitHub stars
  3. 3kilocode27,828 GitHub stars
Read the Claude Code guide →

Jira open source alternatives

10 ranked · reviewed 10 Sept
  1. 1Windshift393 GitHub stars
  2. 2OpenProject16,901 GitHub stars
  3. 3Plane61,813 GitHub stars
Read the Jira guide →

Notion open source alternatives

9 ranked · reviewed 25 Aug
  1. 1AppFlowy78,085 GitHub stars
  2. 2AFFiNE74,046 GitHub stars
  3. 3Outline41,130 GitHub stars
Read the Notion guide →

Slack open source alternatives

8 ranked · reviewed 2 Sept
  1. 1Mattermost39,499 GitHub stars
  2. 2Rocket.Chat46,357 GitHub stars
  3. 3Zulip26,154 GitHub stars
Read the Slack guide →

Linear open source alternatives

8 ranked · reviewed 2 Sept
  1. 1GitLab24,549 GitHub stars
  2. 2OpenProject16,901 GitHub stars
  3. 3Taiga385 GitHub stars
Read the Linear guide →

Wispr Flow open source alternatives

8 ranked · reviewed 18 Sept
  1. 1Handy36,645 GitHub stars
  2. 2VoiceInk6,992 GitHub stars
  3. 3FluidVoice12,660 GitHub stars
Read the Wispr Flow guide →

Arc open source alternatives

6 ranked · reviewed 27 Oct
  1. 1Zen Browser45,496 GitHub stars
  2. 2Floorp8,473 GitHub stars
  3. 3Brave3,744 GitHub stars
Read the Arc guide →

CapCut open source alternatives

5 ranked · reviewed 6 Oct
  1. 1Concat13,996 GitHub stars
  2. 2OpenCut97,106 GitHub stars
  3. 3Shotcut15,566 GitHub stars
Read the CapCut guide →

Grok Bot open source alternatives

8 ranked · reviewed 8 Sept
  1. 1rakazo6,568 GitHub stars
  2. 2OpenMausBot10,710 GitHub stars
  3. 3OpenBot9,980 GitHub stars
Read the Grok Bot guide →

Superhuman open source alternatives

7 ranked · reviewed 2 Sept
  1. 1Inbox Zero12,889 GitHub stars
  2. 2Macro6,056 GitHub stars
  3. 3Mailspring17,987 GitHub stars
Read the Superhuman guide →

Airtable open source alternatives

7 ranked · reviewed 2 Sept
  1. 1AITable15,652 GitHub stars
  2. 2Budibase 28,372 GitHub stars
  3. 3ToolJet41,178 GitHub stars
Read the Airtable guide →

Muse open source alternatives

5 ranked · reviewed 18 Oct
  1. 1OpenClaw393,635 GitHub stars
  2. 2Hermes Agent259,499 GitHub stars
  3. 3rakazo6,568 GitHub stars
Read the Muse guide →

Popular and new self-hosted open source projects

The most starred open source alternatives to paid software, then the newest additions. Each one is free to install or self-host.

Browse recently added projects

Supabase

Alternative toFirebase

Open source Firebase: Postgres database, auth, and file storage

  • 114,405 GitHub stars
  • Apache-2.0Licence Apache-2.0
  • #BaaS

Agent Skills

InAI & Machine Learning

Structured workflows for AI coding agents.

  • 112,550 GitHub stars
  • MITLicence MIT

orca

Alternative toConductor

The ultimate IDE for coding agents

  • 112,415 GitHub stars
  • MITLicence MIT

claude-mem

Alternative toContextPool

Stop re-explaining your codebase to every new agent session

  • 110,680 GitHub stars
  • Apache-2.0Licence Apache-2.0
  • #AI Agents

Fastapi

Alternative toAWS API Gateway

High-performance Python API framework with auto OpenAPI documentation

  • 104,448 GitHub stars
  • MITLicence MIT

Neovim

Alternative toSublime Text

Hyperextensible Vim-based editor with Lua plugin support

  • 103,298 GitHub stars
  • Apache-2.0Licence Apache-2.0

RuView

Alternative toAWS IoT

Intelligent AI agents for real-world applications

  • 101,953 GitHub stars
  • MITLicence MIT
  • #AI Agents

material-ui

Alternative toKendoReact

Open source React components for Google's Material Design

  • 99,294 GitHub stars
  • MITLicence MIT

VoiceStudio

Alternative toElevenLabs

Voice cloning, dubbing, and transcription that runs fully offline

  • 97,915 GitHub stars
  • AGPL-3.0Licence AGPL-3.0

OpenCut

Alternative toCapCut

Open source video editing in your browser, free forever

  • 97,106 GitHub stars
  • MITLicence MIT
  • #Video

LocalSend

Alternative toSend Anywhere

Free cross-platform file sharing over local network, no cloud

  • 96,932 GitHub stars
  • Apache-2.0Licence Apache-2.0

Vllm

Alternative toTogether AI

High-throughput LLM inference server with OpenAI-compatible API

  • 96,116 GitHub stars
  • Apache-2.0Licence Apache-2.0
  • #LLM

manim

Alternative toAnimo

Programmatic animation engine for explanatory math videos

  • 95,974 GitHub stars
  • MITLicence MIT
  • #Video

Nvm

InDeveloper Tools

Switch Node.js versions per shell with a single bash command

  • 95,737 GitHub stars
  • MITLicence MIT
  • #CLI

Cryptomator

NEW

Alternative toTresorit

Client-side AES-256 encryption for any cloud storage service.

  • 16,442 GitHub stars
  • GPL-3.0Licence GPL-3.0
  • #Security

Stirling PDF

Alternative toAdobe Acrobat

Self-hosted PDF editor with 50+ tools for every PDF task

  • 95,517 GitHub stars
  • MITLicence MIT

ragflow

Alternative toVectara

Open-source RAG engine with document parsing and agent orchestration

  • 93,305 GitHub stars
  • Apache-2.0Licence Apache-2.0
  • #LLM

Traccar

NEW

Alternative toGeotab

GPS tracking server for fleets and assets with 200+ device protocols.

  • 8,045 GitHub stars
  • Apache-2.0Licence Apache-2.0

Uptime Kuma

Alternative toUptimeRobot

Track uptime for websites and APIs with 90+ alert integrations

  • 93,153 GitHub stars
  • MITLicence MIT
  • #Monitoring

Zed

Alternative toCursor

High-performance open source code editor with built-in AI

  • 92,528 GitHub stars
  • Apache-2.0Licence Apache-2.0

DevToys

NEW

Alternative toDevUtils

Cross-platform dev toolbox with 30+ offline tools for daily tasks.

  • 32,183 GitHub stars
  • MITLicence MIT

OpenHands

Alternative toDevin AI

Delegate scoped coding tasks in isolated, reviewable agent sessions

  • 92,450 GitHub stars
  • MITLicence MIT
  • #AI Agents

PaddleOCR

Alternative toGoogle Document AI

Self-hosted OCR toolkit turning PDFs and images into LLM-ready data

  • 92,046 GitHub stars
  • Apache-2.0Licence Apache-2.0
  • #AI Agents

ScreenToGif

NEW

Alternative toSnagit

Screen, webcam, and sketchboard recorder with frame-level GIF editor

  • 27,887 GitHub stars
  • MS-PLLicence MS-PL

Home Assistant

Alternative toSamsung SmartThings

Open source home automation with local control priority

  • 91,895 GitHub stars
  • Apache-2.0Licence Apache-2.0
  • #IoT

servers

Alternative toComposio

Open reference servers for connecting AI to external tools and data

  • 91,768 GitHub stars
  • CustomLicence Apache-2.0 and MIT (dual, transitioning)
  • #AI Agents

Generative Ai

NEW

Alternative toMicrosoft Azure AI Foundry

Notebooks and ADK samples for Gemini agent development on GCP.

  • 17,843 GitHub stars
  • Apache-2.0Licence Apache-2.0
  • #AI Agents

uv

Alternative toAnaconda

Python package manager written in Rust, 10-100x faster than pip

  • 91,498 GitHub stars
  • Apache-2.0Licence Apache-2.0

Syncthing

Alternative toResilio Connect

Decentralized continuous file sync with no central server

  • 90,005 GitHub stars
  • MPL-2.0Licence MPL-2.0

Stayput

NEW

InBusiness & Productivity

136 file tools for images, PDFs and video, no uploads or accounts.

  • MITLicence MIT

Worldmonitor

Alternative toSeerist

Self-hosted geopolitical risk map: 58 layer types, 469 OSINT feeds.

  • 89,995 GitHub stars
  • AGPL-3.0Licence AGPL-3.0

Understand-Anything

Alternative toSourcegraph

Interactive knowledge graphs for codebases

  • 89,647 GitHub stars
  • MITLicence MIT

Paperboy

NEW

InMarketing & Growth

Fact-checked SEO articles from Search Console data, held if they fail

  • AGPL-3.0Licence AGPL-3.0
  • #LLM

crawl4ai

Alternative toFirecrawl

LLM-ready web crawling without API keys or rate limits

  • 86,786 GitHub stars
  • Apache-2.0Licence Apache-2.0
  • #Scraping

rtk

Alternative toTokenade

CLI proxy that removes 89% of agent context noise on average

  • 85,233 GitHub stars
  • Apache-2.0Licence Apache-2.0
  • #CLI

Nanochat

NEW

InAI & Machine Learning

Minimal LLM training toolkit for GPT-scale models under $100.

  • 59,895 GitHub stars
  • MITLicence MIT
  • #LLM

deer-flow

Alternative toManus

Build super agents with DeerFlow's powerful framework

  • 84,839 GitHub stars
  • MITLicence MIT
  • #LLM

OmniRoute

Alternative toOpenRouter

352-provider AI gateway with automatic fallback and token compression

  • 84,205 GitHub stars
  • MITLicence MIT
  • #LLM

Deepagents

NEW

Alternative toLangGraph Platform

Batteries-included agent library for complex, multi-step AI work.

  • 30,917 GitHub stars
  • MITLicence MIT
  • #AI Agents

MiroFish

InAI & Machine Learning

Multi-agent simulation engine that predicts real-world outcomes

  • 83,421 GitHub stars
  • AGPL-3.0Licence AGPL-3.0
Browse all 1,030 open source alternatives

Open source software by category

21 categories of self-hosted open source software, including Developer Tools, AI and Machine Learning, and Business and Productivity.

Browse all 21 categories
527

Developer Tools

REA (Reverse Engineer Anything), superpowers, Skills for Real Engineers455

AI & Machine Learning

freeCodeCamp, REA (Reverse Engineer Anything), OpenClaw237

Business & Productivity

OpenClaw, Excalidraw, RustDesk203

Web Development

superpowers, freeCodeCamp, Skills for Real Engineers153

Security & Monitoring

RustDesk, REA (Reverse Engineer Anything), Uptime Kuma138

Communication & Collaboration

iptv, freeCodeCamp, Excalidraw137

IT Management

Immich, RustDesk, Stirling PDF122

Cloud & Hosting

dify, RuView, rtk119

LLMOps & AI Tooling

Hermes Agent, OpenCode, MarkItDown112

Data & Analytics

Firecrawl, ragflow, Worldmonitor111

Design & Creative

ComfyUI, Excalidraw, Godot Engine111

Product & Project Management

agency-agents, freeCodeCamp, Gstack103

DevOps & CI/CD

Nvm, Uptime Kuma, Netdata83

APIs & Integration

n8n, Firecrawl, iptv75

Backend Development

graphify, dify, Rust69

Databases & Storage

Supabase, Immich, Redis63

Marketing & Growth

MoneyPrinterTurbo, agency-agents, MiroFish39

Web & App Development

Flutter, Rust, Nvm35

Finance & Fintech

TradingAgents, MiroFish, OpenBB35

No-Code & Low-Code

Langflow, n8n, dify30

Customer Support

Twenty, agency-agents, iptv

Articles on open source software

Browse the blog
17 Oct 2026

Best Open Source AI Video Generators in 2026: 8 Compared

I compared 8 open source AI video generators, from raw model weights in ComfyUI and Wan2.2 to finished-short pipelines in MoneyPrinterTurbo.

15 May 2026

The Best Open Source AI Tools You Can Run on Your Own Hardware

Stop paying per token. These open source AI models and tools run entirely on your own hardware: no API keys, no data leaving your server, no monthly bills that scale with usage.

15 May 2026

Best Open Source Git Hosting Platforms for Self-Hosted Teams

GitHub lock-in is real. These open source git hosting platforms let you self-host repositories, CI/CD, and code review on your own server.

New open source projects by email

The projects we add and every new guide. Free, unsubscribe any time.

Find open source alternatives to paid software

/
  • Claude Code to OpenCode
  • Jira to Windshift
  • Notion to AppFlowy
  • Slack to Mattermost
  • Linear to GitLab
  • Wispr Flow to Handy
  • Arc to Zen Browser
  • CapCut to Concat
  • Grok Bot to rakazo
  • Superhuman to Inbox Zero
  • Airtable to AITable
  • Muse to OpenClaw
  • Railway to Coolify
  • GitHub Copilot to Cline
  • Datadog to Netdata
  • Microsoft Teams to Rocket.Chat
  • Confluence to Docmost
  • Pinecone to Qdrant
  • Zapier to n8n
  • Devin AI to OpenHands
  • Firebase to Supabase
  • 1Password to KeePassXC
  • Contentful to Strapi
  • Adobe Premiere Pro to Shotcut
  • Claude Code to OpenCode
  • Jira to Windshift
  • Notion to AppFlowy
  • Slack to Mattermost
  • Linear to GitLab
  • Wispr Flow to Handy
  • Arc to Zen Browser
  • CapCut to Concat
  • Grok Bot to rakazo
  • Superhuman to Inbox Zero
  • Airtable to AITable
  • Muse to OpenClaw
  • Railway to Coolify
  • GitHub Copilot to Cline
  • Datadog to Netdata
  • Microsoft Teams to Rocket.Chat
  • Confluence to Docmost
  • Pinecone to Qdrant
  • Zapier to n8n
  • Devin AI to OpenHands
  • Firebase to Supabase
  • 1Password to KeePassXC
  • Contentful to Strapi
  • Adobe Premiere Pro to Shotcut