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Open Source Alternatives to Paid Software

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Alternative guides
Claude CodeJiraNotionSlackLinearWispr Flow
CapCutGrok BotSuperhumanAirtableMuse

Featured

OpenClaw

Alternative toMuse

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

  • 392,969 GitHub stars
  • MITLicence MIT
  • #AI Agents

Inbox Zero

Sponsored

Alternative toSuperhuman

AI email assistant that drafts replies and clears your inbox

  • 12,712 GitHub stars
  • AGPL-3.0Licence AGPL-3.0
  • #Email

God's Eye View

Alternative toFFlightradar24

Real-time global intelligence on a 3D globe

  • 58,501 GitHub stars
  • CustomLicence MIT with third-party data restrictions
  • #AI Agents

paperclip

Alternative toGrok Bot

Self-hosted AI agent management with org charts and budgets

  • 105,118 GitHub stars
  • MITLicence MIT
  • #AI Agents

Spotifast

Alternative toSpotify Premium

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

  • 8,903 GitHub stars
  • MITLicence MIT
  • #macOS

Hermes Agent

Alternative toGrok Bot

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

  • 255,514 GitHub stars
  • MITLicence MIT
  • #AI Agents

rakazo

Sponsored

Alternative toGrok Bot

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

  • 4,904 GitHub stars
  • Apache-2.0Licence Apache-2.0
  • #AI Agents

Buzz

Alternative toSlack

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

  • 36,174 GitHub stars
  • Apache-2.0Licence Apache-2.0
  • #Chat

n8n

Alternative toZapier

Self-hosted workflow automation with 400+ node connectors

  • 208,117 GitHub stars

Agent Reach

Alternative toFirecrawl

Give any AI agent internet access, free and local

  • 100,165 GitHub stars
  • MITLicence MIT
  • #AI Agents

REA (Reverse Engineer Anything)

Alternative toRevEng.AI

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

  • 345,900 GitHub stars
  • MITLicence MIT

Omnara

Sponsored

Alternative toCClaude Managed Agents

Open-source agent deployment API. Self-host or use Omnara Cloud.

  • 2,957 GitHub stars
  • Apache-2.0Licence Apache-2.0
  • #AI Agents

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Trending open source projects this week

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

As of 23 Oct 2026

  1. 0101+5,775 stars this week

    iFixAi

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

    Alternative toZenity

    Alternative toZenity

    +5,775 stars this week33,230 GitHub stars
  2. 0202+3,385 stars this week

    Concat

    Free, open-source video editor with local AI captions.

    Alternative toCapCut

    Alternative toCapCut

    +3,385 stars this week10,891 GitHub stars
  3. 0303+2,752 stars this week

    OmniRoute

    352-provider AI gateway with automatic fallback and token compression

    Alternative toOpenRouter

    Alternative toOpenRouter

    +2,752 stars this week79,946 GitHub stars
  4. 0404+2,633 stars this week

    hindsight

    Self-hosted memory that makes AI agents smarter over time

    Alternative toMem0

    Alternative toMem0

    +2,633 stars this week52,802 GitHub stars
  5. 0505+1,988 stars this week

    MiroFish

    Multi-agent simulation engine that predicts real-world outcomes

    InAI & Machine Learning

    InAI & Machine Learning

    +1,988 stars this week81,330 GitHub stars
  6. 0606+1,699 stars this week

    text-to-cad

    AI agent skills for CAD, robotics, and fabrication workflows

    Alternative toZoo.dev

    Alternative toZoo.dev

    +1,699 stars this week22,571 GitHub stars
  7. 0707+1,625 stars this week

    OpenShell

    Sandboxed runtime for autonomous AI agents, open source by NVIDIA

    Alternative toE2B

    Alternative toE2B

    +1,625 stars this week17,891 GitHub stars
  8. 0808+1,420 stars this week

    pentagi

    Autonomous AI agents for hands-free penetration testing

    Alternative toNodeZero by Horizon3.ai

    Alternative toNodeZero by Horizon3.ai

    +1,420 stars this week32,067 GitHub stars
  9. 0909+1,368 stars this week

    claude-mem

    Stop re-explaining your codebase to every new agent session

    Alternative toContextPool

    Alternative toContextPool

    +1,368 stars this week102,346 GitHub stars
  10. 1010+1,149 stars this week

    i-have-adhd

    ADHD-friendly output rules for Claude Code. Action first, no filler.

    InDeveloper Tools

    InDeveloper Tools

    +1,149 stars this week58,348 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 11 alternative guides

Claude Code open source alternatives

10 ranked · reviewed 15 Sept
  1. 1OpenCode218,637 GitHub stars
  2. 2oh-my-pi36,029 GitHub stars
  3. 3kilocode27,673 GitHub stars
Read the Claude Code guide →

Jira open source alternatives

10 ranked · reviewed 10 Sept
  1. 1Windshift357 GitHub stars
  2. 2OpenProject16,508 GitHub stars
  3. 3Plane60,980 GitHub stars
Read the Jira guide →

Notion open source alternatives

9 ranked · reviewed 25 Aug
  1. 1AppFlowy77,613 GitHub stars
  2. 2AFFiNE73,684 GitHub stars
  3. 3Outline40,988 GitHub stars
Read the Notion guide →

Slack open source alternatives

8 ranked · reviewed 2 Sept
  1. 1Mattermost39,388 GitHub stars
  2. 2Rocket.Chat46,298 GitHub stars
  3. 3Zulip26,085 GitHub stars
Read the Slack guide →

Linear open source alternatives

8 ranked · reviewed 2 Sept
  1. 1GitLab24,535 GitHub stars
  2. 2OpenProject16,508 GitHub stars
  3. 3Taiga385 GitHub stars
Read the Linear guide →

Wispr Flow open source alternatives

8 ranked · reviewed 18 Sept
  1. 1Handy34,209 GitHub stars
  2. 2VoiceInk6,862 GitHub stars
  3. 3FluidVoice12,327 GitHub stars
Read the Wispr Flow guide →

CapCut open source alternatives

5 ranked · reviewed 6 Oct
  1. 1Concat10,813 GitHub stars
  2. 2OpenCut95,414 GitHub stars
  3. 3Shotcut15,459 GitHub stars
Read the CapCut guide →

Grok Bot open source alternatives

8 ranked · reviewed 8 Sept
  1. 1rakazo4,904 GitHub stars
  2. 2OpenMausBot5,280 GitHub stars
  3. 3OpenBot6,875 GitHub stars
Read the Grok Bot guide →

Superhuman open source alternatives

7 ranked · reviewed 2 Sept
  1. 1Inbox Zero12,712 GitHub stars
  2. 2Macro4,782 GitHub stars
  3. 3Mailspring17,934 GitHub stars
Read the Superhuman guide →

Airtable open source alternatives

7 ranked · reviewed 2 Sept
  1. 1AITable15,639 GitHub stars
  2. 2Budibase 28,334 GitHub stars
  3. 3ToolJet41,110 GitHub stars
Read the Airtable guide →

Muse open source alternatives

5 ranked · reviewed 18 Oct
  1. 1OpenClaw392,969 GitHub stars
  2. 2Hermes Agent255,514 GitHub stars
  3. 3rakazo4,904 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

  • 112,232 GitHub stars
  • Apache-2.0Licence Apache-2.0
  • #BaaS

Agent Skills

InAI & Machine Learning

Structured workflows for AI coding agents.

  • 108,899 GitHub stars
  • MITLicence MIT

Fastapi

Alternative toAWS API Gateway

High-performance Python API framework with auto OpenAPI documentation

  • 103,755 GitHub stars
  • MITLicence MIT

Neovim

Alternative toSublime Text

Hyperextensible Vim-based editor with Lua plugin support

  • 103,088 GitHub stars
  • Apache-2.0Licence Apache-2.0

claude-mem

Alternative toContextPool

Stop re-explaining your codebase to every new agent session

  • 102,123 GitHub stars
  • Apache-2.0Licence Apache-2.0
  • #AI Agents

orca

Alternative toConductor

The ultimate IDE for coding agents

  • 99,379 GitHub stars
  • MITLicence MIT

material-ui

Alternative toKendoReact

Open source React components for Google's Material Design

  • 99,254 GitHub stars
  • MITLicence MIT

RuView

Alternative toAWS IoT

Intelligent AI agents for real-world applications

  • 98,881 GitHub stars
  • MITLicence MIT
  • #AI Agents

Nvm

InDeveloper Tools

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

  • 95,597 GitHub stars
  • MITLicence MIT
  • #CLI

OpenCut

Alternative toCapCut

Open source video editing in your browser, free forever

  • 95,414 GitHub stars
  • MITLicence MIT
  • #Video

manim

Alternative toAnimo

Programmatic animation engine for explanatory math videos

  • 95,294 GitHub stars
  • MITLicence MIT
  • #Video

LocalSend

Alternative toSend Anywhere

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

  • 95,009 GitHub stars
  • Apache-2.0Licence Apache-2.0

Stirling PDF

Alternative toAdobe Acrobat

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

  • 94,607 GitHub stars
  • MITLicence MIT

Vllm

Alternative toTogether AI

High-throughput LLM inference server with OpenAI-compatible API

  • 94,441 GitHub stars
  • Apache-2.0Licence Apache-2.0
  • #LLM

Container

NEW

Alternative toDocker Desktop

Linux containers as lightweight VMs, native to Apple silicon

  • 50,841 GitHub stars
  • Apache-2.0Licence Apache-2.0
  • #macOS

Uptime Kuma

Alternative toUptimeRobot

Track uptime for websites and APIs with 90+ alert integrations

  • 92,672 GitHub stars
  • MITLicence MIT
  • #Monitoring

ragflow

Alternative toVectara

Open-source RAG engine with document parsing and agent orchestration

  • 92,544 GitHub stars
  • Apache-2.0Licence Apache-2.0
  • #LLM

Php Src

NEW

Alternative toAdobe ColdFusion

Open source PHP interpreter for web and server-side scripting

  • 41,164 GitHub stars
  • BSD-3-ClauseLicence BSD-3-Clause

Zed

Alternative toCursor

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

  • 91,958 GitHub stars
  • Apache-2.0Licence Apache-2.0

Home Assistant

Alternative toSamsung SmartThings

Open source home automation with local control priority

  • 91,617 GitHub stars
  • Apache-2.0Licence Apache-2.0
  • #IoT

Promptfoo

NEW

Alternative toBraintrust

Automated LLM evals, red teaming, and AI vulnerability scanning.

  • 26,309 GitHub stars
  • MITLicence MIT
  • #LLM

servers

Alternative toComposio

Open reference servers for connecting AI to external tools and data

  • 91,470 GitHub stars
  • CustomLicence Apache-2.0 and MIT (dual, transitioning)
  • #AI Agents

OpenHands

Alternative toDevin AI

Delegate scoped coding tasks in isolated, reviewable agent sessions

  • 91,401 GitHub stars
  • MITLicence MIT
  • #AI Agents

UTM

NEW

Alternative toParallels Desktop

Open source VM host and emulator for macOS, iOS, and visionOS.

  • 36,470 GitHub stars
  • Apache-2.0Licence Apache-2.0
  • #macOS

PaddleOCR

Alternative toGoogle Document AI

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

  • 91,289 GitHub stars
  • Apache-2.0Licence Apache-2.0
  • #AI Agents

uv

Alternative toAnaconda

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

  • 91,020 GitHub stars
  • Apache-2.0Licence Apache-2.0

Lean

NEW

Alternative toQuantConnect

Algorithmic trading engine for backtesting and live trading

  • 22,159 GitHub stars
  • Apache-2.0Licence Apache-2.0
  • #CLI

Syncthing

Alternative toResilio Connect

Decentralized continuous file sync with no central server

  • 89,563 GitHub stars
  • MPL-2.0Licence MPL-2.0

Worldmonitor

Alternative toSeerist

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

  • 88,941 GitHub stars
  • AGPL-3.0Licence AGPL-3.0

Claude Howto

NEW

InAI & Machine Learning

Ten-module Claude Code tutorial with copy-paste templates

  • 43,229 GitHub stars
  • MITLicence MIT

Understand-Anything

Alternative toSourcegraph

Interactive knowledge graphs for codebases

  • 87,219 GitHub stars
  • MITLicence MIT

crawl4ai

Alternative toFirecrawl

LLM-ready web crawling without API keys or rate limits

  • 85,984 GitHub stars
  • Apache-2.0Licence Apache-2.0
  • #Scraping

GSmartControl

NEW

Alternative toHard Disk Sentinel

Hard drive and SSD health inspector via smartctl, cross-platform.

  • 766 GitHub stars
  • GPL-3.0Licence GPL-3.0
  • #Monitoring

deer-flow

Alternative toManus

Build super agents with DeerFlow's powerful framework

  • 84,197 GitHub stars
  • MITLicence MIT
  • #LLM

rtk

Alternative toTokenade

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

  • 84,082 GitHub stars
  • Apache-2.0Licence Apache-2.0
  • #CLI

Seanime

NEW

Alternative toCrunchyroll

Self-hosted anime and manga server with AniList and torrent support.

  • 4,268 GitHub stars
  • GPL-3.0Licence GPL-3.0

MinerU

Alternative toLlamaParse

Document parsing for LLM workflows, OCR, and agent reading.

  • 82,142 GitHub stars
  • CustomLicence Apache-2.0 with commercial threshold and attribution terms
  • #LLM

Netdata

Alternative toDatadog

Real-time infrastructure monitoring with zero configuration

  • 81,060 GitHub stars
  • GPL-3.0Licence GPL-3.0
  • #Monitoring

Cherry Studio

NEW

Alternative toTypingMind

Local-first AI workstation with agents and multi-model chat.

  • 52,883 GitHub stars
  • AGPL-3.0Licence AGPL-3.0
  • #LLM

MiroFish

InAI & Machine Learning

Multi-agent simulation engine that predicts real-world outcomes

  • 80,960 GitHub stars
  • AGPL-3.0Licence AGPL-3.0
Browse all 904 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
471

Developer Tools

REA (Reverse Engineer Anything), superpowers, Skills for Real Engineers407

AI & Machine Learning

freeCodeCamp, OpenClaw, REA (Reverse Engineer Anything)198

Web Development

superpowers, freeCodeCamp, Skills for Real Engineers195

Business & Productivity

OpenClaw, Excalidraw, RustDesk131

Security & Monitoring

RustDesk, REA (Reverse Engineer Anything), Uptime Kuma128

Communication & Collaboration

iptv, freeCodeCamp, Excalidraw126

IT Management

Immich, RustDesk, Stirling PDF109

Cloud & Hosting

dify, RuView, rtk106

Product & Project Management

agency-agents, freeCodeCamp, Gstack105

Data & Analytics

Firecrawl, ragflow, Worldmonitor102

Design & Creative

ComfyUI, Excalidraw, Godot Engine102

LLMOps & AI Tooling

Hermes Agent, OpenCode, MarkItDown90

DevOps & CI/CD

Nvm, Uptime Kuma, Netdata79

APIs & Integration

n8n, Firecrawl, iptv69

Backend Development

graphify, dify, Rust61

Databases & Storage

Supabase, Immich, Redis56

Marketing & Growth

MoneyPrinterTurbo, agency-agents, MiroFish35

No-Code & Low-Code

Langflow, n8n, dify34

Web & App Development

Flutter, Rust, Nvm30

Finance & Fintech

TradingAgents, MiroFish, OpenBB29

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
  • CapCut to Concat
  • Grok Bot to rakazo
  • Superhuman to Inbox Zero
  • Airtable to AITable
  • Muse to OpenClaw
  • 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
  • ChatGPT to AnythingLLM
  • LangSmith to Langfuse
  • Claude Code to OpenCode
  • Jira to Windshift
  • Notion to AppFlowy
  • Slack to Mattermost
  • Linear to GitLab
  • Wispr Flow to Handy
  • CapCut to Concat
  • Grok Bot to rakazo
  • Superhuman to Inbox Zero
  • Airtable to AITable
  • Muse to OpenClaw
  • 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
  • ChatGPT to AnythingLLM
  • LangSmith to Langfuse