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Open Source Alternatives to Paid Software

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Alternative guides
Claude CodeJiraNotionSlackLinearWispr FlowConductor
ArcCapCutGrok BotSuperhumanAirtableMuseRailway

Featured

n8n

Alternative toZapier

Self-hosted workflow automation with 400+ node connectors

  • 210,007 GitHub stars

Nuphos

Sponsored

Alternative toConductor

Agent workspace for teams running Claude Code or Codex

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

Windshift

Sponsored

Alternative toJira

Self-hosted work management for teams leaving Jira

  • 424 GitHub stars
  • AGPL-3.0Licence AGPL-3.0

REA (Reverse Engineer Anything)

Alternative toRevEng.AI

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

  • 450,612 GitHub stars
  • MITLicence MIT

God's Eye View

Alternative toFFlightradar24

Real-time global intelligence on a 3D globe

  • 64,214 GitHub stars
  • CustomLicence MIT with third-party data restrictions
  • #AI Agents

Spotifast

Alternative toSpotify Premium

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

  • 10,063 GitHub stars
  • MITLicence MIT
  • #macOS

SnitchFeed

Sponsored

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

Marketing & Growth

It's a Plan

Alternative toLinear

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

  • 2,259 GitHub stars
  • AGPL-3.0Licence AGPL-3.0

paperclip

Alternative toGrok Bot

Self-hosted AI agent management with org charts and budgets

  • 112,979 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.

  • 55,564 GitHub stars
  • MIT LicenseLicence MIT License

rakazo

Sponsored

Alternative toGrok Bot

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

  • 7,869 GitHub stars
  • Apache-2.0Licence Apache-2.0
  • #AI Agents

Inbox Zero

Sponsored

Alternative toSuperhuman

AI email assistant that drafts replies and clears your inbox

  • 12,987 GitHub stars
  • AGPL-3.0Licence AGPL-3.0
  • #Email

OpenClaw

Alternative toMuse

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

  • 394,301 GitHub stars
  • MITLicence MIT
  • #AI Agents

Buzz

Alternative toSlack

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

  • 36,841 GitHub stars
  • Apache-2.0Licence Apache-2.0
  • #Chat

Agent Reach

Alternative toFirecrawl

Give any AI agent internet access, free and local

  • 110,916 GitHub stars
  • MITLicence MIT
  • #AI Agents

Hermes Agent

Alternative toGrok Bot

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

  • 262,494 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 11 Nov 2026

  1. 0101+18,966 stars this week

    REA (Reverse Engineer Anything)

    Featured

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

    Alternative toRevEng.AI

    Alternative toRevEng.AI

    +18,966 stars this week450,612 GitHub stars
  2. 0202+8,566 stars this week

    Astryx

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

    Alternative toMUI X

    Alternative toMUI X

    +8,566 stars this week23,210 GitHub stars
  3. 0303+8,425 stars this week

    Sherlock

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

    Alternative toOSINT Industries

    Alternative toOSINT Industries

    +8,425 stars this week109,173 GitHub stars
  4. 0404+3,825 stars this week

    Misterdownloadmanager

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

    Alternative toInternet Download Manager

    Alternative toInternet Download Manager

    +3,825 stars this week6,869 GitHub stars
  5. 0505+9,845 stars this week

    security-audit-skill

    Multi-phase security audits with machine-readable findings

    Alternative toSnyk

    Alternative toSnyk

    +9,845 stars this week69,444 GitHub stars
  6. 0606+9,105 stars this week

    T3 Code

    Control your coding agents from one interface

    Alternative toConductor

    Alternative toConductor

    +9,105 stars this week56,101 GitHub stars
  7. 0707+8,609 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

    +8,609 stars this week20,910 GitHub stars
  8. 0808+7,555 stars this week

    Skills for Real Engineers

    Empower AI coding agents with essential engineering skills.

    InDeveloper Tools

    InDeveloper Tools

    +7,555 stars this week321,064 GitHub stars
  9. 0909+6,274 stars this week

    VoiceStudio

    Voice cloning, dubbing, and transcription that runs fully offline

    Alternative toElevenLabs

    Alternative toElevenLabs

    +6,274 stars this week107,467 GitHub stars
  10. 1010+6,087 stars this week

    Agent Desktop

    Desktop computer use for AI agents via OS accessibility tree

    InAI & Machine Learning

    InAI & Machine Learning

    +6,087 stars this week21,484 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. 1OpenCode225,912 GitHub stars
  2. 2oh-my-pi38,563 GitHub stars
  3. 3kilocode27,942 GitHub stars
Read the Claude Code guide →

Jira open source alternatives

10 ranked · reviewed 10 Sept
  1. 1Windshift424 GitHub stars
  2. 2OpenProject17,227 GitHub stars
  3. 3Plane62,269 GitHub stars
Read the Jira guide →

Notion open source alternatives

9 ranked · reviewed 25 Aug
  1. 1AppFlowy78,707 GitHub stars
  2. 2AFFiNE74,425 GitHub stars
  3. 3Outline41,224 GitHub stars
Read the Notion guide →

Slack open source alternatives

8 ranked · reviewed 2 Sept
  1. 1Mattermost39,572 GitHub stars
  2. 2Rocket.Chat46,386 GitHub stars
  3. 3Zulip26,202 GitHub stars
Read the Slack guide →

Linear open source alternatives

8 ranked · reviewed 2 Sept
  1. 1GitLab24,561 GitHub stars
  2. 2OpenProject17,227 GitHub stars
  3. 3Taiga385 GitHub stars
Read the Linear guide →

Wispr Flow open source alternatives

8 ranked · reviewed 18 Sept
  1. 1Handy38,363 GitHub stars
  2. 2VoiceInk7,073 GitHub stars
  3. 3FluidVoice12,962 GitHub stars
Read the Wispr Flow guide →

Conductor open source alternatives

13 ranked · reviewed 9 Nov
  1. 1Orca121,450 GitHub stars
  2. 2T3 Code56,101 GitHub stars
  3. 3Nuphos386 GitHub stars
Read the Conductor guide →

Arc open source alternatives

6 ranked · reviewed 27 Oct
  1. 1Zen Browser45,713 GitHub stars
  2. 2Floorp8,489 GitHub stars
  3. 3Brave3,775 GitHub stars
Read the Arc guide →

CapCut open source alternatives

5 ranked · reviewed 6 Oct
  1. 1Concat16,156 GitHub stars
  2. 2OpenCut97,869 GitHub stars
  3. 3Shotcut15,653 GitHub stars
Read the CapCut guide →

Grok Bot open source alternatives

8 ranked · reviewed 8 Sept
  1. 1rakazo7,869 GitHub stars
  2. 2OpenMausBot20,910 GitHub stars
  3. 3OpenBot10,552 GitHub stars
Read the Grok Bot guide →

Superhuman open source alternatives

7 ranked · reviewed 2 Sept
  1. 1Inbox Zero12,987 GitHub stars
  2. 2Macro6,237 GitHub stars
  3. 3Mailspring18,001 GitHub stars
Read the Superhuman guide →

Airtable open source alternatives

7 ranked · reviewed 2 Sept
  1. 1AITable15,664 GitHub stars
  2. 2Budibase 28,399 GitHub stars
  3. 3ToolJet41,219 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

  • 458,983 GitHub stars
  • BSD-3-ClauseLicence BSD-3-Clause

Skills for Real Engineers

InDeveloper Tools

Empower AI coding agents with essential engineering skills.

  • 320,742 GitHub stars
  • MITLicence MIT

superpowers

InDeveloper Tools

Skill-based workflows for coding agents

  • 315,927 GitHub stars
  • MITLicence MIT

ECC

InAI & Machine Learning

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

  • 300,922 GitHub stars
  • MITLicence MIT

OpenCode

Alternative toClaude Code

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

  • 225,912 GitHub stars
  • MITLicence MIT

Firecrawl

Alternative toApify

Turn any website into clean markdown or structured JSON for LLMs

  • 200,452 GitHub stars
  • AGPL-3.0Licence AGPL-3.0
  • #Scraping

vscode

Alternative toCursor

Open source AI code editor for multi-agent development

  • 195,243 GitHub stars
  • MITLicence MIT

MarkItDown

Alternative toUnstructured.io

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

  • 194,857 GitHub stars
  • MITLicence MIT
  • #LLM

Ponytail

InAI & Machine Learning

The lazy senior dev for your AI agent

  • 188,511 GitHub stars
  • MITLicence MIT

Ollama

Alternative toLM Studio

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

  • 186,651 GitHub stars
  • MITLicence MIT
  • #LLM

Flutter

InWeb & App Development

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

  • 181,101 GitHub stars
  • BSD-3-ClauseLicence BSD-3-Clause

transformers

Alternative toGoogle Cloud Vertex AI

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

  • 168,770 GitHub stars
  • Apache-2.0Licence Apache-2.0
  • #LLM

agency-agents

InAI & Machine Learning

Expert AI agent personalities for every workflow

  • 167,680 GitHub stars
  • MITLicence MIT
  • #AI Agents

dify

Alternative toRelevance AI

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

  • 160,957 GitHub stars
  • CustomLicence Apache-2.0 with additional terms
  • #AI Agents

Kinoklip

NEW

Alternative toDaVinci Resolve Studio

GPU-accelerated Linux video editor with DaVinci Resolve's layout

  • 131 GitHub stars
  • GPL-3.0Licence GPL-3.0
  • #Video

Open WebUI

Alternative toTypingMind

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

  • 158,301 GitHub stars
  • #LLM

Langflow

Alternative toRelevance AI

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

  • 156,471 GitHub stars
  • MITLicence MIT
  • #LLM

Mailcow Dockerized

NEW

Alternative toGoogle Workspace

Self-hosted email server with Docker Compose and a web admin UI.

  • 13,779 GitHub stars
  • GPL-3.0Licence GPL-3.0
  • #Email

ComfyUI

Alternative toHiggsfield AI

Node-based interface for visual AI content creation

  • 146,235 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.

  • 145,832 GitHub stars
  • Apache-2.0Licence Apache-2.0

Sniffnet

NEW

Alternative toGlassWire

Network monitor with real-time charts, geolocation, and app tracking.

  • 42,463 GitHub stars
  • Apache-2.0Licence Apache-2.0
  • #Monitoring

iptv

InCustomer Support

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

  • 143,784 GitHub stars
  • UnlicenseLicence Unlicense
  • #Video

MoneyPrinterTurbo

Alternative toInVideo AI

AI-powered short video generation from topic to publish

  • 142,138 GitHub stars
  • MITLicence MIT
  • #AI Agents

Codex Security

NEW

Alternative toSnyk

Find, validate, and fix code vulnerabilities via CLI, SDK, or Codex.

  • 11,742 GitHub stars
  • Apache-2.0Licence Apache-2.0
  • #Security

Gstack

InAI & Machine Learning

Turn Claude Code into a virtual engineering team with 23 skills

  • 141,000 GitHub stars
  • MITLicence MIT

Excalidraw

Alternative toMiro

Open source whiteboard for hand-drawn style diagrams

  • 135,446 GitHub stars
  • MITLicence MIT

Yogurt

NEW

Alternative toGranola

Local AI meeting notes for Mac, Windows, and Linux, no bot

  • 407 GitHub stars
  • MITLicence MIT

codex

Alternative toClaude Code

OpenAI's terminal coding agent, Apache-2.0 licensed

  • 134,843 GitHub stars
  • Apache-2.0Licence Apache-2.0

RustDesk

Alternative toTeamViewer

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

  • 128,900 GitHub stars
  • AGPL-3.0Licence AGPL-3.0

Modern Web Guidance Src

NEW

InDeveloper Tools

Modern web platform skills for AI coding agents

  • 1,762 GitHub stars
  • Apache-2.0Licence Apache-2.0

TradingAgents

Alternative toLSEG Workspace (formerly Refinitiv Eikon)

Multi-Agent LLM Framework for Financial Trading

  • 121,939 GitHub stars
  • Apache-2.0Licence Apache-2.0
  • #LLM

Rust

InWeb Development

Systems language with memory safety and no garbage collector.

  • 121,750 GitHub stars
  • Apache-2.0Licence Apache-2.0

Milvaion

NEW

Alternative toHangfire Pro

Distributed .NET job scheduler, decoupled workers, one dashboard.

  • 81 GitHub stars
  • Apache-2.0Licence Apache-2.0

Orca

Alternative toConductor

The ultimate IDE for coding agents

  • 121,450 GitHub stars
  • MITLicence MIT

Pi

Alternative toClaude Code

The minimal, self-extensible coding agent for the terminal

  • 121,377 GitHub stars
  • MITLicence MIT
  • #LLM

Kabuk

NEW

Alternative toDisplayFusion

Tiling desktop shell for Windows 11 with bars and OLED wallpapers

  • 4 GitHub stars
  • Apache-2.0Licence Apache-2.0

browser-use

Alternative toSkyvern

Python library giving any LLM full browser control, MIT licensed

  • 120,668 GitHub stars
  • MITLicence MIT
  • #AI Agents

Godot Engine

Alternative toUnity

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

  • 119,978 GitHub stars
  • MITLicence MIT

Fenpo

NEW

Alternative toAirDroid

Phone notifications, messages, files and calls on Windows, no cloud.

  • 2 GitHub stars
  • MITLicence MIT

Immich

Alternative toGoogle Photos

Self-hosted Google Photos with mobile backup and face search

  • 118,842 GitHub stars
  • AGPL-3.0Licence AGPL-3.0
Browse all 1,207 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
622

Developer Tools

REA (Reverse Engineer Anything), Skills for Real Engineers, superpowers524

AI & Machine Learning

freeCodeCamp, REA (Reverse Engineer Anything), OpenClaw294

Business & Productivity

OpenClaw, Excalidraw, RustDesk216

Web Development

Skills for Real Engineers, freeCodeCamp, superpowers183

Security & Monitoring

RustDesk, REA (Reverse Engineer Anything), Sherlock162

Communication & Collaboration

iptv, freeCodeCamp, Excalidraw152

IT Management

Immich, RustDesk, Stirling PDF132

LLMOps & AI Tooling

Hermes Agent, OpenCode, MarkItDown130

Cloud & Hosting

dify, RuView, rtk126

Design & Creative

ComfyUI, Excalidraw, Godot Engine126

Product & Project Management

agency-agents, freeCodeCamp, Gstack124

DevOps & CI/CD

Nvm, Uptime Kuma, Netdata119

Data & Analytics

Firecrawl, ragflow, Worldmonitor91

APIs & Integration

n8n, Firecrawl, iptv86

Backend Development

graphify, dify, Rust76

Databases & Storage

Supabase, Immich, Redis74

Marketing & Growth

MoneyPrinterTurbo, agency-agents, MiroFish47

Web & App Development

Flutter, Rust, Angular40

No-Code & Low-Code

Langflow, n8n, dify38

Finance & Fintech

TradingAgents, MiroFish, OpenBB33

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