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Open Source Alternatives to Paid Software

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Alternative guides
Claude CodeJiraNotionSlackLinearWispr FlowConductor
ArcCapCutGrok BotSuperhumanAirtableMuseRailway

Featured

Hermes Agent

Alternative toGrok Bot

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

  • 261,524 GitHub stars
  • MITLicence MIT
  • #AI Agents

It's a Plan

Alternative toLinear

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

  • 2,210 GitHub stars
  • AGPL-3.0Licence AGPL-3.0

Windshift

Sponsored

Alternative toJira

Self-hosted work management for teams leaving Jira

  • 413 GitHub stars
  • AGPL-3.0Licence AGPL-3.0

CleanYourTV

Alternative toATV Launcher Pro

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

  • 53,395 GitHub stars
  • MIT LicenseLicence MIT License

God's Eye View

Alternative toFFlightradar24

Real-time global intelligence on a 3D globe

  • 63,448 GitHub stars
  • CustomLicence MIT with third-party data restrictions
  • #AI Agents

SnitchFeed

Sponsored

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

Marketing & Growth

Nuphos

Sponsored

Alternative toConductor

Agent workspace for teams running Claude Code or Codex

  • 372 GitHub stars
  • Apache-2.0Licence Apache-2.0
  • #AI Agents

OpenClaw

Alternative toMuse

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

  • 394,144 GitHub stars
  • MITLicence MIT
  • #AI Agents

Inbox Zero

Sponsored

Alternative toSuperhuman

AI email assistant that drafts replies and clears your inbox

  • 12,942 GitHub stars
  • AGPL-3.0Licence AGPL-3.0
  • #Email

rakazo

Sponsored

Alternative toGrok Bot

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

  • 7,478 GitHub stars
  • Apache-2.0Licence Apache-2.0
  • #AI Agents

paperclip

Alternative toGrok Bot

Self-hosted AI agent management with org charts and budgets

  • 112,038 GitHub stars
  • MITLicence MIT
  • #AI Agents

Buzz

Alternative toSlack

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

  • 36,787 GitHub stars
  • Apache-2.0Licence Apache-2.0
  • #Chat

n8n

Alternative toZapier

Self-hosted workflow automation with 400+ node connectors

  • 209,760 GitHub stars

Agent Reach

Alternative toFirecrawl

Give any AI agent internet access, free and local

  • 109,989 GitHub stars
  • MITLicence MIT
  • #AI Agents

REA (Reverse Engineer Anything)

Alternative toRevEng.AI

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

  • 441,247 GitHub stars
  • MITLicence MIT

Spotifast

Alternative toSpotify Premium

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

  • 9,822 GitHub stars
  • MITLicence MIT
  • #macOS

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Trending open source projects this week

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

As of 9 Nov 2026

  1. 0101+24,864 stars this week

    REA (Reverse Engineer Anything)

    Featured

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

    Alternative toRevEng.AI

    Alternative toRevEng.AI

    +24,864 stars this week444,169 GitHub stars
  2. 0202+3,412 stars this week

    Sherlock

    OSINT username search across 400+ networks, self-hosted.

    Alternative toOSINT Industries

    Alternative toOSINT Industries

    +3,412 stars this week104,160 GitHub stars
  3. 0303+2,545 stars this week

    Astryx

    Agent-ready React design system with 150+ accessible components.

    Alternative toMUI X

    Alternative toMUI X

    +2,545 stars this week17,189 GitHub stars
  4. 0404+14,271 stars this week

    T3 Code

    Control your coding agents from one interface

    Alternative toConductor

    Alternative toConductor

    +14,271 stars this week52,659 GitHub stars
  5. 0505+12,619 stars this week

    Agent Desktop

    Desktop computer use for AI agents via OS accessibility tree

    InAI & Machine Learning

    InAI & Machine Learning

    +12,619 stars this week19,755 GitHub stars
  6. 0606+10,499 stars this week

    security-audit-skill

    Multi-phase security audits with machine-readable findings

    Alternative toSnyk

    Alternative toSnyk

    +10,499 stars this week67,005 GitHub stars
  7. 0707+9,308 stars this week

    Skills for Real Engineers

    Empower AI coding agents with essential engineering skills.

    InDeveloper Tools

    InDeveloper Tools

    +9,308 stars this week318,666 GitHub stars
  8. 0808+7,824 stars this week

    OpenMausBot

    Your AI agent team in a chat app, local-first and Apache-2.0 licensed

    Alternative toGrok Bot

    Alternative toGrok Bot

    +7,824 stars this week18,518 GitHub stars
  9. 0909+7,066 stars this week

    VoiceStudio

    Voice cloning, dubbing, and transcription that runs fully offline

    Alternative toElevenLabs

    Alternative toElevenLabs

    +7,066 stars this week105,154 GitHub stars
  10. 1010+6,748 stars this week

    Orca

    The ultimate IDE for coding agents

    Alternative toConductor

    Alternative toConductor

    +6,748 stars this week119,447 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 14 alternative guides

Claude Code open source alternatives

10 ranked · reviewed 15 Sept
  1. 1OpenCode225,303 GitHub stars
  2. 2oh-my-pi38,138 GitHub stars
  3. 3kilocode27,906 GitHub stars
Read the Claude Code guide →

Jira open source alternatives

10 ranked · reviewed 10 Sept
  1. 1Windshift413 GitHub stars
  2. 2OpenProject17,089 GitHub stars
  3. 3Plane62,127 GitHub stars
Read the Jira guide →

Notion open source alternatives

9 ranked · reviewed 25 Aug
  1. 1AppFlowy78,440 GitHub stars
  2. 2AFFiNE74,300 GitHub stars
  3. 3Outline41,200 GitHub stars
Read the Notion guide →

Slack open source alternatives

8 ranked · reviewed 2 Sept
  1. 1Mattermost39,555 GitHub stars
  2. 2Rocket.Chat46,374 GitHub stars
  3. 3Zulip26,188 GitHub stars
Read the Slack guide →

Linear open source alternatives

8 ranked · reviewed 2 Sept
  1. 1GitLab24,552 GitHub stars
  2. 2OpenProject17,089 GitHub stars
  3. 3Taiga385 GitHub stars
Read the Linear guide →

Wispr Flow open source alternatives

8 ranked · reviewed 18 Sept
  1. 1Handy37,955 GitHub stars
  2. 2VoiceInk7,045 GitHub stars
  3. 3FluidVoice12,897 GitHub stars
Read the Wispr Flow guide →

Conductor open source alternatives

12 ranked · reviewed 5 Nov
  1. 1Orca118,573 GitHub stars
  2. 2T3 Code51,445 GitHub stars
  3. 3Paseo23,411 GitHub stars
Read the Conductor guide →

Arc open source alternatives

6 ranked · reviewed 27 Oct
  1. 1Zen Browser45,639 GitHub stars
  2. 2Floorp8,477 GitHub stars
  3. 3Brave3,761 GitHub stars
Read the Arc guide →

CapCut open source alternatives

5 ranked · reviewed 6 Oct
  1. 1Concat14,778 GitHub stars
  2. 2OpenCut97,869 GitHub stars
  3. 3Shotcut15,631 GitHub stars
Read the CapCut guide →

Grok Bot open source alternatives

8 ranked · reviewed 8 Sept
  1. 1rakazo7,478 GitHub stars
  2. 2OpenMausBot17,251 GitHub stars
  3. 3OpenBot10,318 GitHub stars
Read the Grok Bot guide →

Superhuman open source alternatives

7 ranked · reviewed 2 Sept
  1. 1Inbox Zero12,942 GitHub stars
  2. 2Macro6,195 GitHub stars
  3. 3Mailspring17,998 GitHub stars
Read the Superhuman guide →

Airtable open source alternatives

7 ranked · reviewed 2 Sept
  1. 1AITable15,658 GitHub stars
  2. 2Budibase 28,394 GitHub stars
  3. 3ToolJet41,207 GitHub stars
Read the Airtable 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

freeCodeCamp

Alternative toCodecademy

Free, open source coding curriculum with verified certifications

  • 458,745 GitHub stars
  • BSD-3-ClauseLicence BSD-3-Clause

Skills for Real Engineers

InDeveloper Tools

Empower AI coding agents with essential engineering skills.

  • 317,496 GitHub stars
  • MITLicence MIT

superpowers

InDeveloper Tools

Skill-based workflows for coding agents

  • 314,182 GitHub stars
  • MITLicence MIT

ECC

InAI & Machine Learning

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

  • 299,240 GitHub stars
  • MITLicence MIT

OpenCode

Alternative toClaude Code

OpenCode is an open-source AI coding agent that assists developers in

  • 225,303 GitHub stars
  • MITLicence MIT

Firecrawl

Alternative toApify

Turn any website into clean markdown or structured JSON for LLMs

  • 199,471 GitHub stars
  • AGPL-3.0Licence AGPL-3.0
  • #Scraping

vscode

Alternative toCursor

Open source AI code editor for multi-agent development

  • 195,186 GitHub stars
  • MITLicence MIT

MarkItDown

Alternative toUnstructured.io

Convert PDFs, Office files, and images to Markdown, free

  • 194,336 GitHub stars
  • MITLicence MIT
  • #LLM

Ponytail

InAI & Machine Learning

The lazy senior dev for your AI agent

  • 186,428 GitHub stars
  • MITLicence MIT

Ollama

Alternative toLM Studio

Run large language models locally on Mac, Linux, or Windows

  • 186,331 GitHub stars
  • MITLicence MIT
  • #LLM

Flutter

InWeb & App Development

One codebase for mobile, web, and desktop. Native performance.

  • 181,085 GitHub stars
  • BSD-3-ClauseLicence BSD-3-Clause

transformers

Alternative toGoogle Cloud Vertex AI

Model-definition framework for state-of-the-art ML

  • 168,636 GitHub stars
  • Apache-2.0Licence Apache-2.0
  • #LLM

agency-agents

InAI & Machine Learning

Expert AI agent personalities for every workflow

  • 167,123 GitHub stars
  • MITLicence MIT
  • #AI Agents

dify

Alternative toRelevance AI

Visual AI workflow builder with RAG, agents, and self-hosting

  • 160,646 GitHub stars
  • CustomLicence Apache-2.0 with additional terms
  • #AI Agents

Serena

NEW

InDeveloper Tools

MCP server giving AI coding agents IDE-level code tools

  • 31,215 GitHub stars
  • CustomLicence GPL-3.0-or-later (with MIT-licensed SolidLSP component)

Open WebUI

Alternative toTypingMind

Chat interface for Ollama and any OpenAI API, with RAG support

  • 158,003 GitHub stars
  • #LLM

Langflow

Alternative toRelevance AI

Visual AI workflow builder that deploys as an API or MCP server.

  • 156,388 GitHub stars
  • MITLicence MIT
  • #LLM

Gopass

NEW

Alternative to1Password

GPG-encrypted CLI password manager with Git versioning for teams

  • 7,315 GitHub stars
  • MITLicence MIT
  • #CLI

ComfyUI

Alternative toHiggsfield AI

Node-based interface for visual AI content creation

  • 145,608 GitHub stars
  • GPL-3.0Licence GPL-3.0

graphify

Alternative toAtlassian Code Context

Turn your codebase into a knowledge graph your AI can trace and cite.

  • 144,087 GitHub stars
  • Apache-2.0Licence Apache-2.0

Openinterpreter

NEW

Alternative toClaude Code

Coding agent for low-cost open models with Codex compatibility

  • 68,842 GitHub stars
  • Apache-2.0Licence Apache-2.0

iptv

InCustomer Support

136k+ public TV channels, free M3U playlists and EPG data

  • 143,556 GitHub stars
  • UnlicenseLicence Unlicense
  • #Video

MoneyPrinterTurbo

Alternative toInVideo AI

AI-powered short video generation from topic to publish

  • 140,835 GitHub stars
  • MITLicence MIT
  • #AI Agents

Rockxy

NEW

Alternative toProxyman

Open-source HTTP/HTTPS debugger for macOS apps, devices, and AI APIs

  • 1,466 GitHub stars
  • AGPL-3.0Licence AGPL-3.0
  • #macOS

Gstack

InAI & Machine Learning

Turn Claude Code into a virtual engineering team with 23 skills

  • 140,522 GitHub stars
  • MITLicence MIT

Excalidraw

Alternative toMiro

Open source whiteboard for hand-drawn style diagrams

  • 135,284 GitHub stars
  • MITLicence MIT

Open-Generative-AI

NEW

Alternative toMidjourney

Free AI image and video studio with 600+ models, no login needed

  • 33,418 GitHub stars
  • MITLicence MIT
  • #Video

codex

Alternative toClaude Code

OpenAI's terminal coding agent, Apache-2.0 licensed

  • 133,599 GitHub stars
  • Apache-2.0Licence Apache-2.0

RustDesk

Alternative toTeamViewer

Self-hosted remote desktop with end-to-end encryption

  • 128,542 GitHub stars
  • AGPL-3.0Licence AGPL-3.0

Otpauth

NEW

InSecurity & Monitoring

Decode Google Authenticator migrations to standard otpauth:// URIs

  • 972 GitHub stars
  • ISCLicence ISC

Rust

InWeb Development

Systems language with memory safety and no garbage collector.

  • 121,626 GitHub stars
  • Apache-2.0Licence Apache-2.0

TradingAgents

Alternative toLSEG Workspace (formerly Refinitiv Eikon)

Multi-Agent LLM Framework for Financial Trading

  • 121,229 GitHub stars
  • Apache-2.0Licence Apache-2.0
  • #LLM

Stacklit

NEW

InDeveloper Tools

Codebase index for AI agents, 78-82% fewer greps, free Go binary.

  • 116 GitHub stars
  • MITLicence MIT

Pi

Alternative toClaude Code

The minimal, self-extensible coding agent for the terminal

  • 120,693 GitHub stars
  • MITLicence MIT
  • #LLM

browser-use

Alternative toSkyvern

Python library giving any LLM full browser control, MIT licensed

  • 120,285 GitHub stars
  • MITLicence MIT
  • #AI Agents

Misterdownloadmanager

NEW

Alternative toInternet Download Manager

Free IDM alternative in Rust, with torrents and video downloads.

  • 1,560 GitHub stars
  • GPL-3.0Licence GPL-3.0
  • #Video

Godot Engine

Alternative toUnity

Free open source game engine for 2D and 3D development

  • 119,774 GitHub stars
  • MITLicence MIT

Orca

Alternative toConductor

The ultimate IDE for coding agents

  • 118,573 GitHub stars
  • MITLicence MIT

Qualitylayer

NEW

InDeveloper Tools

Structured plan-build-review workflow for coding agents.

  • 2,125 GitHub stars
  • CustomLicence Proprietary (subscription required, source-available)

Immich

Alternative toGoogle Photos

Self-hosted Google Photos with mobile backup and face search

  • 118,521 GitHub stars
  • AGPL-3.0Licence AGPL-3.0
Browse all 1,182 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
610

Developer Tools

REA (Reverse Engineer Anything), Skills for Real Engineers, superpowers
515

AI & Machine Learning

freeCodeCamp, REA (Reverse Engineer Anything), OpenClaw
282

Business & Productivity

OpenClaw, Excalidraw, RustDesk
214

Web Development

Skills for Real Engineers, freeCodeCamp, superpowers
178

Security & Monitoring

RustDesk, REA (Reverse Engineer Anything), Sherlock
158

Communication & Collaboration

iptv, freeCodeCamp, Excalidraw
149

IT Management

Immich, RustDesk, Stirling PDF
130

LLMOps & AI Tooling

Hermes Agent, OpenCode, MarkItDown
129

Cloud & Hosting

dify, RuView, rtk
126

Product & Project Management

agency-agents, freeCodeCamp, Gstack
123

Design & Creative

ComfyUI, Excalidraw, Godot Engine
122

DevOps & CI/CD

Nvm, Uptime Kuma, Netdata
119

Data & Analytics

Firecrawl, ragflow, Worldmonitor
91

APIs & Integration

n8n, Firecrawl, iptv
84

Backend Development

graphify, dify, Rust
76

Databases & Storage

Supabase, Immich, Redis
73

Marketing & Growth

MoneyPrinterTurbo, agency-agents, MiroFish
46

Web & App Development

Flutter, Rust, Angular
40

No-Code & Low-Code

Langflow, n8n, dify
38

Finance & Fintech

TradingAgents, MiroFish, OpenBB
32

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
  • Confluence to Wiki.js
  • Microsoft Teams to Rocket.Chat
  • 1Password to KeePassXC
  • Firebase to Supabase
  • Pinecone to Qdrant
  • Zapier to n8n
  • Devin AI to OpenHands
  • Asana to Leantime
  • Contentful to Strapi
  • 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
  • Confluence to Wiki.js
  • Microsoft Teams to Rocket.Chat
  • 1Password to KeePassXC
  • Firebase to Supabase
  • Pinecone to Qdrant
  • Zapier to n8n
  • Devin AI to OpenHands
  • Asana to Leantime
  • Contentful to Strapi