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Open Source Alternatives to Paid Software

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Alternative guides
Claude CodeJiraNotionSlackLinearWispr FlowConductor
ArcCapCutGrok BotSuperhumanAirtableMuseRailway

Featured

Agent Reach

Alternative toFirecrawl

Give any AI agent internet access, free and local

  • 108,787 GitHub stars
  • MITLicence MIT
  • #AI Agents

God's Eye View

Alternative toFFlightradar24

Real-time global intelligence on a 3D globe

  • 62,832 GitHub stars
  • CustomLicence MIT with third-party data restrictions
  • #AI Agents

Buzz

Alternative toSlack

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

  • 36,728 GitHub stars
  • Apache-2.0Licence Apache-2.0
  • #Chat

Hermes Agent

Alternative toGrok Bot

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

  • 260,560 GitHub stars
  • MITLicence MIT
  • #AI Agents

REA (Reverse Engineer Anything)

Alternative toRevEng.AI

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

  • 431,018 GitHub stars
  • MITLicence MIT

It's a Plan

Sponsored

Alternative toLinear

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

  • 2,170 GitHub stars
  • AGPL-3.0Licence AGPL-3.0

rakazo

Sponsored

Alternative toGrok Bot

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

  • 7,028 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

  • 12,915 GitHub stars
  • AGPL-3.0Licence AGPL-3.0
  • #Email

n8n

Alternative toZapier

Self-hosted workflow automation with 400+ node connectors

  • 209,549 GitHub stars

paperclip

Alternative toGrok Bot

Self-hosted AI agent management with org charts and budgets

  • 111,113 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.

  • 51,495 GitHub stars
  • MIT LicenseLicence MIT License

OpenClaw

Alternative toMuse

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

  • 393,917 GitHub stars
  • MITLicence MIT
  • #AI Agents

Windshift

Sponsored

Alternative toJira

Self-hosted work management for teams leaving Jira

  • 404 GitHub stars
  • AGPL-3.0Licence AGPL-3.0

Spotifast

Alternative toSpotify Premium

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

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

SnitchFeed

Sponsored

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

Marketing & Growth

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 6 Nov 2026

  1. 0101+26,434 stars this week

    REA (Reverse Engineer Anything)

    Featured

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

    Alternative toRevEng.AI

    Alternative toRevEng.AI

    +26,434 stars this week434,848 GitHub stars
  2. 0202+12,564 stars this week

    Agent Desktop

    Desktop computer use for AI agents via OS accessibility tree

    InAI & Machine Learning

    InAI & Machine Learning

    +12,564 stars this week17,070 GitHub stars
  3. 0303+16,497 stars this week

    T3 Code

    Control your coding agents from one interface

    Alternative toConductor

    Alternative toConductor

    +16,497 stars this week48,487 GitHub stars
  4. 0404+8,826 stars this week

    security-audit-skill

    Multi-phase security audits with machine-readable findings

    Alternative toSnyk

    Alternative toSnyk

    +8,826 stars this week61,800 GitHub stars
  5. 0505+8,748 stars this week

    Skills for Real Engineers

    Empower AI coding agents with essential engineering skills.

    InDeveloper Tools

    InDeveloper Tools

    +8,748 stars this week315,456 GitHub stars
  6. 0606+8,679 stars this week

    claude-mem

    Stop re-explaining your codebase to every new agent session

    Alternative toContextPool

    Alternative toContextPool

    +8,679 stars this week113,610 GitHub stars
  7. 0707+7,575 stars this week

    VoiceStudio

    Voice cloning, dubbing, and transcription that runs fully offline

    Alternative toElevenLabs

    Alternative toElevenLabs

    +7,575 stars this week102,044 GitHub stars
  8. 0808+7,093 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

    +7,093 stars this week52,707 GitHub stars
  9. 0909+6,695 stars this week

    Hallmark

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

    InDesign & Creative

    InDesign & Creative

    +6,695 stars this week48,904 GitHub stars
  10. 1010+6,527 stars this week

    Orca

    The ultimate IDE for coding agents

    Alternative toConductor

    Alternative toConductor

    +6,527 stars this week116,834 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. 1OpenCode224,587 GitHub stars
  2. 2oh-my-pi37,794 GitHub stars
  3. 3kilocode27,863 GitHub stars
Read the Claude Code guide →

Jira open source alternatives

10 ranked · reviewed 10 Sept
  1. 1Windshift404 GitHub stars
  2. 2OpenProject16,986 GitHub stars
  3. 3Plane61,974 GitHub stars
Read the Jira guide →

Notion open source alternatives

9 ranked · reviewed 25 Aug
  1. 1AppFlowy78,217 GitHub stars
  2. 2AFFiNE74,216 GitHub stars
  3. 3Outline41,170 GitHub stars
Read the Notion guide →

Slack open source alternatives

8 ranked · reviewed 2 Sept
  1. 1Mattermost39,524 GitHub stars
  2. 2Rocket.Chat46,371 GitHub stars
  3. 3Zulip26,171 GitHub stars
Read the Slack guide →

Linear open source alternatives

8 ranked · reviewed 2 Sept
  1. 1GitLab24,548 GitHub stars
  2. 2OpenProject16,986 GitHub stars
  3. 3Taiga385 GitHub stars
Read the Linear guide →

Wispr Flow open source alternatives

8 ranked · reviewed 18 Sept
  1. 1Handy37,556 GitHub stars
  2. 2VoiceInk7,023 GitHub stars
  3. 3FluidVoice12,818 GitHub stars
Read the Wispr Flow guide →

Conductor open source alternatives

12 ranked · reviewed 5 Nov
  1. 1Orca115,397 GitHub stars
  2. 2T3 Code46,806 GitHub stars
  3. 3Paseo23,074 GitHub stars
Read the Conductor guide →

Arc open source alternatives

6 ranked · reviewed 27 Oct
  1. 1Zen Browser45,562 GitHub stars
  2. 2Floorp8,474 GitHub stars
  3. 3Brave3,751 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. 3Shotcut15,607 GitHub stars
Read the CapCut guide →

Grok Bot open source alternatives

8 ranked · reviewed 8 Sept
  1. 1rakazo7,028 GitHub stars
  2. 2OpenMausBot12,186 GitHub stars
  3. 3OpenBot10,318 GitHub stars
Read the Grok Bot guide →

Superhuman open source alternatives

7 ranked · reviewed 2 Sept
  1. 1Inbox Zero12,915 GitHub stars
  2. 2Macro6,143 GitHub stars
  3. 3Mailspring17,995 GitHub stars
Read the Superhuman guide →

Airtable open source alternatives

7 ranked · reviewed 2 Sept
  1. 1AITable15,658 GitHub stars
  2. 2Budibase 28,382 GitHub stars
  3. 3ToolJet41,196 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

  • 458,580 GitHub stars
  • BSD-3-ClauseLicence BSD-3-Clause

Skills for Real Engineers

InDeveloper Tools

Empower AI coding agents with essential engineering skills.

  • 312,828 GitHub stars
  • MITLicence MIT

superpowers

InDeveloper Tools

Skill-based workflows for coding agents

  • 312,524 GitHub stars
  • MITLicence MIT

ECC

InAI & Machine Learning

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

  • 297,293 GitHub stars
  • MITLicence MIT

OpenCode

Alternative toClaude Code

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

  • 224,587 GitHub stars
  • MITLicence MIT

Firecrawl

Alternative toApify

Turn any website into clean markdown or structured JSON for LLMs

  • 198,572 GitHub stars
  • AGPL-3.0Licence AGPL-3.0
  • #Scraping

vscode

Alternative toCursor

Open source AI code editor for multi-agent development

  • 194,680 GitHub stars
  • MITLicence MIT

MarkItDown

Alternative toUnstructured.io

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

  • 193,913 GitHub stars
  • MITLicence MIT
  • #LLM

Ollama

Alternative toLM Studio

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

  • 185,976 GitHub stars
  • MITLicence MIT
  • #LLM

Ponytail

InAI & Machine Learning

The lazy senior dev for your AI agent

  • 184,576 GitHub stars
  • MITLicence MIT

Flutter

InWeb & App Development

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

  • 181,033 GitHub stars
  • BSD-3-ClauseLicence BSD-3-Clause

transformers

Alternative toGoogle Cloud Vertex AI

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

  • 168,551 GitHub stars
  • Apache-2.0Licence Apache-2.0
  • #LLM

agency-agents

InAI & Machine Learning

Expert AI agent personalities for every workflow

  • 166,537 GitHub stars
  • MITLicence MIT
  • #AI Agents

dify

Alternative toRelevance AI

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

  • 160,439 GitHub stars
  • CustomLicence Apache-2.0 with additional terms
  • #AI Agents

Flowplan

NEW

Alternative toNotion

Docs, databases, whiteboards; self-hosted in one container, AGPL-3.0.

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

Open WebUI

Alternative toTypingMind

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

  • 157,746 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

Camber

NEW

Alternative toArc

Open source Arc alternative with spaces, sidebar, and no account

  • 8 GitHub stars
  • GPL-3.0Licence GPL-3.0

ComfyUI

Alternative toHiggsfield AI

Node-based interface for visual AI content creation

  • 145,049 GitHub stars
  • GPL-3.0Licence GPL-3.0

iptv

InCustomer Support

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

  • 143,284 GitHub stars
  • UnlicenseLicence Unlicense
  • #Video

Openworkbuddy

NEW

Alternative toMicrosoft 365 Copilot

Local-first AI agent delivering editable office files, BYOK

  • 393 GitHub stars
  • CustomLicence PolyForm Noncommercial License 1.0.0 with commercial license option
  • #AI Agents

graphify

Alternative toAtlassian Code Context

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

  • 142,530 GitHub stars
  • Apache-2.0Licence Apache-2.0

MoneyPrinterTurbo

Alternative toInVideo AI

AI-powered short video generation from topic to publish

  • 139,185 GitHub stars
  • MITLicence MIT
  • #AI Agents

Yardlet

NEW

Alternative toConductor

One macOS window for every coding agent you already use.

  • 31 GitHub stars
  • MITLicence MIT

Gstack

InAI & Machine Learning

Turn Claude Code into a virtual engineering team with 23 skills

  • 138,939 GitHub stars
  • MITLicence MIT

Excalidraw

Alternative toMiro

Open source whiteboard for hand-drawn style diagrams

  • 135,158 GitHub stars
  • MITLicence MIT

Tidybatch

NEW

InDeveloper Tools

CLI bulk file renamer with dry-run preview and journaled undo

  • MITLicence MIT
  • #CLI

codex

Alternative toClaude Code

OpenAI's terminal coding agent, Apache-2.0 licensed

  • 133,239 GitHub stars
  • Apache-2.0Licence Apache-2.0

RustDesk

Alternative toTeamViewer

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

  • 128,172 GitHub stars
  • AGPL-3.0Licence AGPL-3.0

SDL

NEW

InDeveloper Tools

Cross-platform C library for audio, input, and graphics access.

  • 16,942 GitHub stars
  • ZlibLicence Zlib

Rust

InWeb Development

Systems language with memory safety and no garbage collector.

  • 121,092 GitHub stars
  • Apache-2.0Licence Apache-2.0

TradingAgents

Alternative toLSEG Workspace (formerly Refinitiv Eikon)

Multi-Agent LLM Framework for Financial Trading

  • 120,680 GitHub stars
  • Apache-2.0Licence Apache-2.0
  • #LLM

VibeVoice

NEW

Alternative toElevenLabs

MIT-licensed voice AI for long-form TTS and speech recognition

  • 55,941 GitHub stars
  • MITLicence MIT
  • #LLM

Pi

Alternative toClaude Code

The minimal, self-extensible coding agent for the terminal

  • 120,138 GitHub stars
  • MITLicence MIT
  • #LLM

browser-use

Alternative toSkyvern

Python library giving any LLM full browser control, MIT licensed

  • 120,062 GitHub stars
  • MITLicence MIT
  • #AI Agents

TiktokAutoUploader

NEW

Alternative toSocialPilot

Upload and schedule TikTok videos from Python, TypeScript, CLI, or Go.

  • 1,221 GitHub stars
  • AGPL-3.0Licence AGPL-3.0

Godot Engine

Alternative toUnity

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

  • 119,600 GitHub stars
  • MITLicence MIT

Immich

Alternative toGoogle Photos

Self-hosted Google Photos with mobile backup and face search

  • 118,293 GitHub stars
  • AGPL-3.0Licence AGPL-3.0

Cross Platform Llm Client

NEW

Alternative toPrivate LLM

GGUF model inference on Android and iOS, with cloud API fallback

  • 1,489 GitHub stars
  • MITLicence MIT
  • #LLM

Caveman

Alternative toTokenade

Token-slashing caveman-speak for cheaper, faster AI code.

  • 117,404 GitHub stars
  • Apache-2.0Licence Apache-2.0
  • #LLM
Browse all 1,152 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
591

Developer Tools

REA (Reverse Engineer Anything), Skills for Real Engineers, superpowers503

AI & Machine Learning

freeCodeCamp, REA (Reverse Engineer Anything), OpenClaw280

Business & Productivity

OpenClaw, Excalidraw, RustDesk209

Web Development

Skills for Real Engineers, freeCodeCamp, superpowers173

Security & Monitoring

RustDesk, REA (Reverse Engineer Anything), Uptime Kuma155

Communication & Collaboration

iptv, freeCodeCamp, Excalidraw146

IT Management

Immich, RustDesk, Stirling PDF129

LLMOps & AI Tooling

Hermes Agent, OpenCode, MarkItDown128

Cloud & Hosting

dify, RuView, rtk124

Product & Project Management

agency-agents, freeCodeCamp, Gstack119

DevOps & CI/CD

Nvm, Uptime Kuma, Netdata118

Data & Analytics

Firecrawl, ragflow, Worldmonitor117

Design & Creative

ComfyUI, Excalidraw, Godot Engine90

APIs & Integration

n8n, Firecrawl, iptv81

Backend Development

graphify, dify, Rust75

Databases & Storage

Supabase, Immich, Redis71

Marketing & Growth

MoneyPrinterTurbo, agency-agents, MiroFish44

Web & App Development

Flutter, Rust, Nvm40

No-Code & Low-Code

Langflow, n8n, dify38

Finance & Fintech

TradingAgents, MiroFish, OpenBB32

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
  • Firebase to Supabase
  • Pinecone to Qdrant
  • Zapier to n8n
  • 1Password to KeePassXC
  • 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
  • Firebase to Supabase
  • Pinecone to Qdrant
  • Zapier to n8n
  • 1Password to KeePassXC
  • Devin AI to OpenHands
  • Asana to Leantime
  • Contentful to Strapi