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Open Source Alternatives to Paid Software

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Alternative guides
Claude CodeJiraNotionSlackLinearWispr FlowArc
CapCutGrok BotSuperhumanAirtableMuseRailway

Featured

REA (Reverse Engineer Anything)

Alternative toRevEng.AI

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

  • 407,266 GitHub stars
  • MITLicence MIT

Inbox Zero

Sponsored

Alternative toSuperhuman

AI email assistant that drafts replies and clears your inbox

  • 12,855 GitHub stars
  • AGPL-3.0Licence AGPL-3.0
  • #Email

SnitchFeed

Sponsored

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

Marketing & Growth

Windshift

Sponsored

Alternative toJira

Self-hosted work management for teams leaving Jira

  • 386 GitHub stars
  • AGPL-3.0Licence AGPL-3.0

Buzz

Alternative toSlack

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

  • 36,552 GitHub stars
  • Apache-2.0Licence Apache-2.0
  • #Chat

Spotifast

Alternative toSpotify Premium

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

  • 9,440 GitHub stars
  • MITLicence MIT
  • #macOS

OpenClaw

Alternative toMuse

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

  • 393,358 GitHub stars
  • MITLicence MIT
  • #AI Agents

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

n8n

Alternative toZapier

Self-hosted workflow automation with 400+ node connectors

  • 208,984 GitHub stars

Agent Reach

Alternative toFirecrawl

Give any AI agent internet access, free and local

  • 106,185 GitHub stars
  • MITLicence MIT
  • #AI Agents

God's Eye View

Alternative toFFlightradar24

Real-time global intelligence on a 3D globe

  • 61,172 GitHub stars
  • CustomLicence MIT with third-party data restrictions
  • #AI Agents

rakazo

Sponsored

Alternative toGrok Bot

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

  • 6,242 GitHub stars
  • Apache-2.0Licence Apache-2.0
  • #AI Agents

Hermes Agent

Alternative toGrok Bot

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

  • 258,472 GitHub stars
  • MITLicence MIT
  • #AI Agents

paperclip

Alternative toGrok Bot

Self-hosted AI agent management with org charts and budgets

  • 108,591 GitHub stars
  • MITLicence MIT
  • #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 1 Nov 2026

  1. 0101+36,582 stars this week

    REA (Reverse Engineer Anything)

    Featured

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

    Alternative toRevEng.AI

    Alternative toRevEng.AI

    +36,582 stars this week415,856 GitHub stars
  2. 0202+15,915 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

    +15,915 stars this week48,047 GitHub stars
  3. 0303+11,827 stars this week

    VoiceStudio

    Voice cloning, dubbing, and transcription that runs fully offline

    Alternative toElevenLabs

    Alternative toElevenLabs

    +11,827 stars this week96,963 GitHub stars
  4. 0404+11,747 stars this week

    Hallmark

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

    InDesign & Creative

    InDesign & Creative

    +11,747 stars this week44,013 GitHub stars
  5. 0505+10,605 stars this week

    security-audit-skill

    Multi-phase security audits with machine-readable findings

    Alternative toSnyk

    Alternative toSnyk

    +10,605 stars this week55,442 GitHub stars
  6. 0606+10,386 stars this week

    DeepTutor

    Agentic framework for lifelong personalized tutoring

    Alternative toKhanmigo

    Alternative toKhanmigo

    +10,386 stars this week52,944 GitHub stars
  7. 0707+7,520 stars this week

    iFixAi

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

    Alternative toZenity

    Alternative toZenity

    +7,520 stars this week41,568 GitHub stars
  8. 0808+6,758 stars this week

    orca

    The ultimate IDE for coding agents

    Alternative toConductor

    Alternative toConductor

    +6,758 stars this week111,799 GitHub stars
  9. 0909+5,998 stars this week

    Ponytail

    The lazy senior dev for your AI agent

    InAI & Machine Learning

    InAI & Machine Learning

    +5,998 stars this week181,584 GitHub stars
  10. 1010+5,968 stars this week

    ECC

    Cross-harness skills, agents, and security for AI coding

    InAI & Machine Learning

    InAI & Machine Learning

    +5,968 stars this week294,132 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. 1OpenCode223,015 GitHub stars
  2. 2oh-my-pi37,058 GitHub stars
  3. 3kilocode27,794 GitHub stars
Read the Claude Code guide →

Jira open source alternatives

10 ranked · reviewed 10 Sept
  1. 1Windshift386 GitHub stars
  2. 2OpenProject16,799 GitHub stars
  3. 3Plane61,668 GitHub stars
Read the Jira guide →

Notion open source alternatives

9 ranked · reviewed 25 Aug
  1. 1AppFlowy77,959 GitHub stars
  2. 2AFFiNE73,957 GitHub stars
  3. 3Outline41,108 GitHub stars
Read the Notion guide →

Slack open source alternatives

8 ranked · reviewed 2 Sept
  1. 1Mattermost39,465 GitHub stars
  2. 2Rocket.Chat46,351 GitHub stars
  3. 3Zulip26,138 GitHub stars
Read the Slack guide →

Linear open source alternatives

8 ranked · reviewed 2 Sept
  1. 1GitLab24,547 GitHub stars
  2. 2OpenProject16,799 GitHub stars
  3. 3Taiga385 GitHub stars
Read the Linear guide →

Wispr Flow open source alternatives

8 ranked · reviewed 18 Sept
  1. 1Handy35,089 GitHub stars
  2. 2VoiceInk6,967 GitHub stars
  3. 3FluidVoice12,601 GitHub stars
Read the Wispr Flow guide →

Arc open source alternatives

6 ranked · reviewed 27 Oct
  1. 1Zen Browser45,408 GitHub stars
  2. 2Floorp8,466 GitHub stars
  3. 3Brave3,734 GitHub stars
Read the Arc guide →

CapCut open source alternatives

5 ranked · reviewed 6 Oct
  1. 1Concat13,168 GitHub stars
  2. 2OpenCut96,188 GitHub stars
  3. 3Shotcut15,536 GitHub stars
Read the CapCut guide →

Grok Bot open source alternatives

8 ranked · reviewed 8 Sept
  1. 1rakazo6,242 GitHub stars
  2. 2OpenMausBot7,448 GitHub stars
  3. 3OpenBot9,031 GitHub stars
Read the Grok Bot guide →

Superhuman open source alternatives

7 ranked · reviewed 2 Sept
  1. 1Inbox Zero12,855 GitHub stars
  2. 2Macro5,635 GitHub stars
  3. 3Mailspring17,965 GitHub stars
Read the Superhuman guide →

Airtable open source alternatives

7 ranked · reviewed 2 Sept
  1. 1AITable15,652 GitHub stars
  2. 2Budibase 28,369 GitHub stars
  3. 3ToolJet41,143 GitHub stars
Read the Airtable guide →

Muse open source alternatives

5 ranked · reviewed 18 Oct
  1. 1OpenClaw393,358 GitHub stars
  2. 2Hermes Agent258,472 GitHub stars
  3. 3rakazo6,242 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

  • 114,295 GitHub stars
  • Apache-2.0Licence Apache-2.0
  • #BaaS

Agent Skills

InAI & Machine Learning

Structured workflows for AI coding agents.

  • 111,702 GitHub stars
  • MITLicence MIT

orca

Alternative toConductor

The ultimate IDE for coding agents

  • 110,007 GitHub stars
  • MITLicence MIT

claude-mem

Alternative toContextPool

Stop re-explaining your codebase to every new agent session

  • 106,086 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

  • 103,241 GitHub stars
  • Apache-2.0Licence Apache-2.0

RuView

Alternative toAWS IoT

Intelligent AI agents for real-world applications

  • 101,474 GitHub stars
  • MITLicence MIT
  • #AI Agents

material-ui

Alternative toKendoReact

Open source React components for Google's Material Design

  • 99,284 GitHub stars
  • MITLicence MIT

LocalSend

Alternative toSend Anywhere

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

  • 96,424 GitHub stars
  • Apache-2.0Licence Apache-2.0

OpenCut

Alternative toCapCut

Open source video editing in your browser, free forever

  • 96,188 GitHub stars
  • MITLicence MIT
  • #Video

Vllm

Alternative toTogether AI

High-throughput LLM inference server with OpenAI-compatible API

  • 95,878 GitHub stars
  • Apache-2.0Licence Apache-2.0
  • #LLM

Nvm

InDeveloper Tools

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

  • 95,708 GitHub stars
  • MITLicence MIT
  • #CLI

manim

Alternative toAnimo

Programmatic animation engine for explanatory math videos

  • 95,654 GitHub stars
  • MITLicence MIT
  • #Video

Stirling PDF

Alternative toAdobe Acrobat

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

  • 95,345 GitHub stars
  • MITLicence MIT
A

Aplica

NEW

Alternative toJobCopilot

Finds jobs, scores them, applies in your browser with your real data.

  • 3 GitHub stars
  • MITLicence MIT
  • #AI Agents

VoiceStudio

Alternative toElevenLabs

Voice cloning, dubbing, and transcription that runs fully offline

  • 94,149 GitHub stars
  • AGPL-3.0Licence AGPL-3.0

ragflow

Alternative toVectara

Open-source RAG engine with document parsing and agent orchestration

  • 93,098 GitHub stars
  • Apache-2.0Licence Apache-2.0
  • #LLM

Unlimited-OCR

NEW

Alternative toGoogle Document AI

Document OCR with unlimited page depth, MIT licensed, self-hosted.

  • 30,123 GitHub stars
  • MITLicence MIT
  • #LLM

Uptime Kuma

Alternative toUptimeRobot

Track uptime for websites and APIs with 90+ alert integrations

  • 93,062 GitHub stars
  • MITLicence MIT
  • #Monitoring

Zed

Alternative toCursor

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

  • 92,390 GitHub stars
  • Apache-2.0Licence Apache-2.0

Net Merge

NEW

Alternative toSpeedify

Use Wi-Fi, Ethernet, and phone data together for faster downloads

  • 2,715 GitHub stars
  • MITLicence MIT
  • #macOS

OpenHands

Alternative toDevin AI

Delegate scoped coding tasks in isolated, reviewable agent sessions

  • 92,206 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

TwinDesk

NEW

Alternative toSynergy

One mouse and keyboard for Mac, Windows, Linux and Android. No cloud.

  • 2,443 GitHub stars
  • GPL-3.0Licence GPL-3.0
  • #macOS

Home Assistant

Alternative toSamsung SmartThings

Open source home automation with local control priority

  • 91,825 GitHub stars
  • Apache-2.0Licence Apache-2.0
  • #IoT

servers

Alternative toComposio

Open reference servers for connecting AI to external tools and data

  • 91,711 GitHub stars
  • CustomLicence Apache-2.0 and MIT (dual, transitioning)
  • #AI Agents

Mlx Serve

NEW

Alternative toLM Studio

Local LLM server for Apple Silicon, faster than LM Studio

  • 2,206 GitHub stars
  • MITLicence MIT
  • #LLM

uv

Alternative toAnaconda

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

  • 91,395 GitHub stars
  • Apache-2.0Licence Apache-2.0

Syncthing

Alternative toResilio Connect

Decentralized continuous file sync with no central server

  • 89,880 GitHub stars
  • MPL-2.0Licence MPL-2.0

Alchemy

NEW

Alternative toPulumi Cloud

Type-safe cloud infrastructure and app logic in one TypeScript program

  • 1,821 GitHub stars
  • Apache-2.0Licence Apache-2.0

Worldmonitor

Alternative toSeerist

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

  • 89,768 GitHub stars
  • AGPL-3.0Licence AGPL-3.0

Understand-Anything

Alternative toSourcegraph

Interactive knowledge graphs for codebases

  • 88,896 GitHub stars
  • MITLicence MIT

TensorFold

NEW

InAI & Machine Learning

Local LLM inference for Apple Silicon and NVIDIA GPUs, no Python.

  • 1,567 GitHub stars
  • Apache-2.0Licence Apache-2.0
  • #LLM

crawl4ai

Alternative toFirecrawl

LLM-ready web crawling without API keys or rate limits

  • 86,606 GitHub stars
  • Apache-2.0Licence Apache-2.0
  • #Scraping

rtk

Alternative toTokenade

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

  • 84,987 GitHub stars
  • Apache-2.0Licence Apache-2.0
  • #CLI

Skillshare

NEW

InDeveloper Tools

AI coding setup manager for skills, agents, MCP, and hooks

  • 2,872 GitHub stars
  • MITLicence MIT
  • #CLI

deer-flow

Alternative toManus

Build super agents with DeerFlow's powerful framework

  • 84,656 GitHub stars
  • MITLicence MIT
  • #LLM

OmniRoute

Alternative toOpenRouter

352-provider AI gateway with automatic fallback and token compression

  • 83,128 GitHub stars
  • MITLicence MIT
  • #LLM

X Algorithm

NEW

Alternative toBytePlus Recommend

Rust-based recommendation algorithm behind X's For You feed

  • 33,993 GitHub stars
  • Apache-2.0Licence Apache-2.0

MiroFish

InAI & Machine Learning

Multi-agent simulation engine that predicts real-world outcomes

  • 82,811 GitHub stars
  • AGPL-3.0Licence AGPL-3.0
Browse all 1,010 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
517

Developer Tools

REA (Reverse Engineer Anything), superpowers, Skills for Real Engineers446

AI & Machine Learning

freeCodeCamp, REA (Reverse Engineer Anything), OpenClaw232

Business & Productivity

OpenClaw, Excalidraw, RustDesk203

Web Development

superpowers, freeCodeCamp, Skills for Real Engineers150

Security & Monitoring

RustDesk, REA (Reverse Engineer Anything), Uptime Kuma138

Communication & Collaboration

iptv, freeCodeCamp, Excalidraw135

IT Management

Immich, RustDesk, Stirling PDF119

Cloud & Hosting

dify, RuView, rtk116

LLMOps & AI Tooling

Hermes Agent, OpenCode, MarkItDown110

Data & Analytics

Firecrawl, ragflow, Worldmonitor110

Product & Project Management

agency-agents, freeCodeCamp, Gstack109

Design & Creative

ComfyUI, Excalidraw, Godot Engine100

DevOps & CI/CD

Nvm, Uptime Kuma, Netdata83

APIs & Integration

n8n, Firecrawl, iptv75

Backend Development

graphify, dify, Rust68

Databases & Storage

Supabase, Immich, Redis60

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