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Open Source Alternatives to Paid Software

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Alternative guides
Claude CodeJiraNotionSlackLinearWispr FlowArc
CapCutGrok BotSuperhumanAirtableMuseRailway

Featured

Agent Reach

Alternative toFirecrawl

Give any AI agent internet access, free and local

  • 103,240 GitHub stars
  • MITLicence MIT
  • #AI Agents

REA (Reverse Engineer Anything)

Alternative toRevEng.AI

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

  • 390,785 GitHub stars
  • MITLicence MIT

SnitchFeed

Sponsored

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

Marketing & Growth

Buzz

Alternative toSlack

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

  • 36,478 GitHub stars
  • Apache-2.0Licence Apache-2.0
  • #Chat

Inbox Zero

Sponsored

Alternative toSuperhuman

AI email assistant that drafts replies and clears your inbox

  • 12,826 GitHub stars
  • AGPL-3.0Licence AGPL-3.0
  • #Email

paperclip

Alternative toGrok Bot

Self-hosted AI agent management with org charts and budgets

  • 107,598 GitHub stars
  • MITLicence MIT
  • #AI Agents

God's Eye View

Alternative toFFlightradar24

Real-time global intelligence on a 3D globe

  • 60,408 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.

  • 5,914 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.

  • 257,359 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.

  • 35,334 GitHub stars
  • MIT LicenseLicence MIT License

OpenClaw

Alternative toMuse

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

  • 393,134 GitHub stars
  • MITLicence MIT
  • #AI Agents

Spotifast

Alternative toSpotify Premium

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

  • 9,164 GitHub stars
  • MITLicence MIT
  • #macOS

Omnara

Sponsored

Alternative toCClaude Managed Agents

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

  • 3,296 GitHub stars
  • Apache-2.0Licence Apache-2.0
  • #AI Agents

n8n

Alternative toZapier

Self-hosted workflow automation with 400+ node connectors

  • 208,635 GitHub stars

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Trending open source projects this week

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

As of 28 Oct 2026

  1. 0101+36,335 stars this week

    REA (Reverse Engineer Anything)

    Featured

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

    Alternative toRevEng.AI

    Alternative toRevEng.AI

    +36,335 stars this week397,979 GitHub stars
  2. 0202+20,472 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

    +20,472 stars this week42,103 GitHub stars
  3. 0303+6,958 stars this week

    Hallmark

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

    InDesign & Creative

    InDesign & Creative

    +6,958 stars this week39,224 GitHub stars
  4. 0404+12,502 stars this week

    security-audit-skill

    Multi-phase security audits with machine-readable findings

    Alternative toSnyk

    Alternative toSnyk

    +12,502 stars this week50,362 GitHub stars
  5. 0505+10,568 stars this week

    VoiceStudio

    Voice cloning, dubbing, and transcription that runs fully offline

    Alternative toElevenLabs

    Alternative toElevenLabs

    +10,568 stars this week91,585 GitHub stars
  6. 0606+3,419 stars this week

    Cindy

    Local-first AI agent desktop app for Claude Code, Codex, and Pi.

    Alternative toCursor

    Alternative toCursor

    +3,419 stars this week7,582 GitHub stars
  7. 0707+6,142 stars this week

    orca

    The ultimate IDE for coding agents

    Alternative toConductor

    Alternative toConductor

    +6,142 stars this week108,189 GitHub stars
  8. 0808+5,834 stars this week

    Ponytail

    The lazy senior dev for your AI agent

    InAI & Machine Learning

    InAI & Machine Learning

    +5,834 stars this week178,296 GitHub stars
  9. 0909+2,705 stars this week

    Claude Seo

    SEO audit plugin for Claude Code, 26 skills and 19 agents

    InMarketing & Growth

    InMarketing & Growth

    +2,705 stars this week22,813 GitHub stars
  10. 1010+4,964 stars this week

    ECC

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

    InAI & Machine Learning

    InAI & Machine Learning

    +4,964 stars this week290,996 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. 1OpenCode221,882 GitHub stars
  2. 2oh-my-pi36,686 GitHub stars
  3. 3kilocode27,761 GitHub stars
Read the Claude Code guide →

Jira open source alternatives

10 ranked · reviewed 10 Sept
  1. 1Windshift379 GitHub stars
  2. 2OpenProject16,692 GitHub stars
  3. 3Plane61,474 GitHub stars
Read the Jira guide →

Notion open source alternatives

9 ranked · reviewed 25 Aug
  1. 1AppFlowy77,793 GitHub stars
  2. 2AFFiNE73,862 GitHub stars
  3. 3Outline41,073 GitHub stars
Read the Notion guide →

Slack open source alternatives

8 ranked · reviewed 2 Sept
  1. 1Mattermost39,437 GitHub stars
  2. 2Rocket.Chat46,331 GitHub stars
  3. 3Zulip26,116 GitHub stars
Read the Slack guide →

Linear open source alternatives

8 ranked · reviewed 2 Sept
  1. 1GitLab24,545 GitHub stars
  2. 2OpenProject16,692 GitHub stars
  3. 3Taiga385 GitHub stars
Read the Linear guide →

Wispr Flow open source alternatives

8 ranked · reviewed 18 Sept
  1. 1Handy34,783 GitHub stars
  2. 2VoiceInk6,932 GitHub stars
  3. 3FluidVoice12,489 GitHub stars
Read the Wispr Flow guide →

Arc open source alternatives

6 ranked · reviewed 27 Oct
  1. 1Zen Browser45,307 GitHub stars
  2. 2Floorp8,461 GitHub stars
  3. 3Brave3,723 GitHub stars
Read the Arc guide →

CapCut open source alternatives

5 ranked · reviewed 6 Oct
  1. 1Concat11,508 GitHub stars
  2. 2OpenCut96,188 GitHub stars
  3. 3Shotcut15,502 GitHub stars
Read the CapCut guide →

Grok Bot open source alternatives

8 ranked · reviewed 8 Sept
  1. 1rakazo5,914 GitHub stars
  2. 2OpenMausBot5,675 GitHub stars
  3. 3OpenBot7,078 GitHub stars
Read the Grok Bot guide →

Superhuman open source alternatives

7 ranked · reviewed 2 Sept
  1. 1Inbox Zero12,826 GitHub stars
  2. 2Macro4,945 GitHub stars
  3. 3Mailspring17,945 GitHub stars
Read the Superhuman guide →

Airtable open source alternatives

7 ranked · reviewed 2 Sept
  1. 1AITable15,639 GitHub stars
  2. 2Budibase 28,356 GitHub stars
  3. 3ToolJet41,129 GitHub stars
Read the Airtable guide →

Muse open source alternatives

5 ranked · reviewed 18 Oct
  1. 1OpenClaw393,134 GitHub stars
  2. 2Hermes Agent257,359 GitHub stars
  3. 3rakazo5,914 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

freeCodeCamp

Alternative toCodecademy

Free, open source coding curriculum with verified certifications

  • 457,992 GitHub stars
  • BSD-3-ClauseLicence BSD-3-Clause

superpowers

InDeveloper Tools

Skill-based workflows for coding agents

  • 305,559 GitHub stars
  • MITLicence MIT

Skills for Real Engineers

InDeveloper Tools

Empower AI coding agents with essential engineering skills.

  • 303,789 GitHub stars
  • MITLicence MIT

ECC

InAI & Machine Learning

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

  • 289,700 GitHub stars
  • MITLicence MIT

OpenCode

Alternative toClaude Code

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

  • 221,882 GitHub stars
  • MITLicence MIT

Firecrawl

Alternative toApify

Turn any website into clean markdown or structured JSON for LLMs

  • 195,526 GitHub stars
  • AGPL-3.0Licence AGPL-3.0
  • #Scraping

vscode

Alternative toCursor

Open source AI code editor for multi-agent development

  • 194,368 GitHub stars
  • MITLicence MIT

MarkItDown

Alternative toUnstructured.io

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

  • 192,367 GitHub stars
  • MITLicence MIT
  • #LLM

Ollama

Alternative toLM Studio

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

  • 184,909 GitHub stars
  • MITLicence MIT
  • #LLM

Flutter

InWeb & App Development

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

  • 180,377 GitHub stars
  • BSD-3-ClauseLicence BSD-3-Clause

Ponytail

InAI & Machine Learning

The lazy senior dev for your AI agent

  • 176,985 GitHub stars
  • MITLicence MIT

transformers

Alternative toGoogle Cloud Vertex AI

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

  • 168,201 GitHub stars
  • Apache-2.0Licence Apache-2.0
  • #LLM

agency-agents

InAI & Machine Learning

Expert AI agent personalities for every workflow

  • 164,220 GitHub stars
  • MITLicence MIT
  • #AI Agents

dify

Alternative toRelevance AI

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

  • 159,628 GitHub stars
  • CustomLicence Apache-2.0 with additional terms
  • #AI Agents

Oya Browser

NEW

Alternative toBrowserbase

Records portal tasks once; replays with no model and no bot detection

  • 355 GitHub stars
  • CustomLicence Sustainable Use License 1.0
  • #AI Agents

Open WebUI

Alternative toTypingMind

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

  • 156,793 GitHub stars
  • #LLM

Langflow

Alternative toRelevance AI

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

  • 155,993 GitHub stars
  • MITLicence MIT
  • #LLM

FlClash

NEW

Alternative toShadowrocket

Ad-free Clash Meta proxy client for Android and desktop, GPL-3.0.

  • 58,816 GitHub stars
  • GPL-3.0Licence GPL-3.0

ComfyUI

Alternative toHiggsfield AI

Node-based interface for visual AI content creation

  • 143,214 GitHub stars
  • GPL-3.0Licence GPL-3.0

iptv

InCustomer Support

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

  • 142,478 GitHub stars
  • UnlicenseLicence Unlicense
  • #Video

It Tools

NEW

InDeveloper Tools

Open source toolbox with 80+ browser-based utilities for developers.

  • 41,018 GitHub stars
  • GPL-3.0Licence GPL-3.0

Gstack

InAI & Machine Learning

Turn Claude Code into a virtual engineering team with 23 skills

  • 137,735 GitHub stars
  • MITLicence MIT

graphify

Alternative toAtlassian Code Context

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

  • 136,064 GitHub stars
  • Apache-2.0Licence Apache-2.0

Agent Security

NEW

Alternative toLakera Guard

On-device policy enforcement and secret detection for AI coding agents

  • 157 GitHub stars
  • Apache-2.0Licence Apache-2.0
  • #Security

MoneyPrinterTurbo

Alternative toInVideo AI

AI-powered short video generation from topic to publish

  • 135,440 GitHub stars
  • MITLicence MIT
  • #AI Agents

Excalidraw

Alternative toMiro

Open source whiteboard for hand-drawn style diagrams

  • 134,580 GitHub stars
  • MITLicence MIT

Lazyrsync

NEW

InDeveloper Tools

Rust TUI for rsync with saved profiles, dry-run diff, and SSH.

  • 968 GitHub stars
  • MITLicence MIT
  • #CLI

codex

Alternative toClaude Code

OpenAI's terminal coding agent, Apache-2.0 licensed

  • 131,022 GitHub stars
  • Apache-2.0Licence Apache-2.0

RustDesk

Alternative toTeamViewer

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

  • 127,113 GitHub stars
  • AGPL-3.0Licence AGPL-3.0

Zeroshot

NEW

InDeveloper Tools

Enforced QA workflow engine for coding agents, MIT licensed

  • 2,050 GitHub stars
  • MITLicence MIT
  • #AI Agents

Rust

InWeb Development

Systems language with memory safety and no garbage collector.

  • 120,861 GitHub stars
  • Apache-2.0Licence Apache-2.0

browser-use

Alternative toSkyvern

Python library giving any LLM full browser control, MIT licensed

  • 119,219 GitHub stars
  • MITLicence MIT
  • #AI Agents

Dirwise

NEW

Alternative toDirectory Opus

Keyboard-first file manager for Windows with column view and tabs.

  • 3 GitHub stars
  • MITLicence MIT

Godot Engine

Alternative toUnity

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

  • 119,131 GitHub stars
  • MITLicence MIT

Pi

Alternative toClaude Code

The minimal, self-extensible coding agent for the terminal

  • 118,024 GitHub stars
  • MITLicence MIT
  • #LLM

Caprock

NEW

Alternative toConductor

Track coding agent sessions with cost, plan limits, and PR pipeline

  • 36 GitHub stars
  • Apache-2.0Licence Apache-2.0

Immich

Alternative toGoogle Photos

Self-hosted Google Photos with mobile backup and face search

  • 117,331 GitHub stars
  • AGPL-3.0Licence AGPL-3.0

TradingAgents

Alternative toLSEG Workspace (formerly Refinitiv Eikon)

Multi-Agent LLM Framework for Financial Trading

  • 115,993 GitHub stars
  • Apache-2.0Licence Apache-2.0
  • #LLM

Body.build

NEW

Alternative toFitbod

Free evidence-based weightlifting app with fractional volume counting

  • 37 GitHub stars
  • AGPL-3.0Licence AGPL-3.0
  • #Fitness

Caveman

Alternative toTokenade

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

  • 115,163 GitHub stars
  • Apache-2.0Licence Apache-2.0
  • #LLM
Browse all 939 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
486

Developer Tools

REA (Reverse Engineer Anything), superpowers, Skills for Real Engineers420

AI & Machine Learning

freeCodeCamp, OpenClaw, REA (Reverse Engineer Anything)205

Business & Productivity

OpenClaw, Excalidraw, RustDesk199

Web Development

superpowers, freeCodeCamp, Skills for Real Engineers140

Security & Monitoring

RustDesk, REA (Reverse Engineer Anything), Uptime Kuma129

Communication & Collaboration

iptv, freeCodeCamp, Excalidraw128

IT Management

Immich, RustDesk, Stirling PDF111

Cloud & Hosting

dify, RuView, rtk108

Data & Analytics

Firecrawl, ragflow, Worldmonitor106

Design & Creative

ComfyUI, Excalidraw, Godot Engine106

LLMOps & AI Tooling

Hermes Agent, OpenCode, MarkItDown106

Product & Project Management

agency-agents, freeCodeCamp, Gstack93

DevOps & CI/CD

Nvm, Uptime Kuma, Netdata81

APIs & Integration

n8n, Firecrawl, iptv70

Backend Development

graphify, dify, Rust64

Databases & Storage

Supabase, Immich, Redis58

Marketing & Growth

MoneyPrinterTurbo, agency-agents, MiroFish35

No-Code & Low-Code

Langflow, n8n, dify35

Web & App Development

Flutter, Rust, Nvm31

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
  • 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