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Open Source Alternatives to Paid Software

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Alternative guides
Claude CodeJiraNotionSlackLinearWispr FlowConductorArc
CapCutGrok BotSuperhumanDiscordAirtableMuseRailway

Featured

Spotifast

Alternative toSpotify Premium

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

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

OpenClaw

Alternative toMuse

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

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

It's a Plan

Alternative toLinear

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

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

n8n

Alternative toZapier

Self-hosted workflow automation with 400+ node connectors

  • 210,007 GitHub stars

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

SnitchFeed

Sponsored

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

Marketing & Growth

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

REA (Reverse Engineer Anything)

Alternative toRevEng.AI

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

  • 450,612 GitHub stars
  • MITLicence MIT

Jade Hosting

Sponsored

Zero-configuration full stack deploy in any language

Cloud & Hosting

Windshift

Sponsored

Alternative toJira

Self-hosted work management for teams leaving Jira

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

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

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

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

Hermes Agent

Alternative toGrok Bot

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

  • 262,494 GitHub stars
  • MITLicence MIT
  • #AI Agents

Nuphos

Sponsored

Alternative toConductor

Agent workspace for teams running Claude Code or Codex

  • 386 GitHub stars
  • Apache-2.0Licence Apache-2.0
  • #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 12 Nov 2026

  1. 0101+18,222 stars this week

    REA (Reverse Engineer Anything)

    Featured

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

    Alternative toRevEng.AI

    Alternative toRevEng.AI

    +18,222 stars this week453,070 GitHub stars
  2. 0202+10,594 stars this week

    Astryx

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

    Alternative toMUI X

    Alternative toMUI X

    +10,594 stars this week25,238 GitHub stars
  3. 0303+9,417 stars this week

    Sherlock

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

    Alternative toOSINT Industries

    Alternative toOSINT Industries

    +9,417 stars this week110,165 GitHub stars
  4. 0404+5,116 stars this week

    Misterdownloadmanager

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

    Alternative toInternet Download Manager

    Alternative toInternet Download Manager

    +5,116 stars this week6,969 GitHub stars
  5. 0505+8,709 stars this week

    T3 Code

    Control your coding agents from one interface

    Alternative toConductor

    Alternative toConductor

    +8,709 stars this week57,196 GitHub stars
  6. 0606+8,655 stars this week

    security-audit-skill

    Multi-phase security audits with machine-readable findings

    Alternative toSnyk

    Alternative toSnyk

    +8,655 stars this week70,455 GitHub stars
  7. 0707+7,720 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

    +7,720 stars this week21,313 GitHub stars
  8. 0808+6,686 stars this week

    Skills for Real Engineers

    Empower AI coding agents with essential engineering skills.

    InDeveloper Tools

    InDeveloper Tools

    +6,686 stars this week322,142 GitHub stars
  9. 0909+6,392 stars this week

    VoiceStudio

    Voice cloning, dubbing, and transcription that runs fully offline

    Alternative toElevenLabs

    Alternative toElevenLabs

    +6,392 stars this week108,436 GitHub stars
  10. 1010+5,698 stars this week

    Orca

    The ultimate IDE for coding agents

    Alternative toConductor

    Alternative toConductor

    +5,698 stars this week122,532 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 15 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. 3OpenBot11,400 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 →

Discord open source alternatives

10 ranked · reviewed 12 Nov
  1. 1Stoat3,463 GitHub stars
  2. 2Fluxer10,850 GitHub stars
  3. 3Element13,651 GitHub stars
Read the Discord 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

Caveman

Alternative toTokenade

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

  • 118,816 GitHub stars
  • Apache-2.0Licence Apache-2.0
  • #LLM

claude-mem

Alternative toContextPool

Stop re-explaining your codebase to every new agent session

  • 116,233 GitHub stars
  • Apache-2.0Licence Apache-2.0
  • #AI Agents

Agent Skills

InAI & Machine Learning

Structured workflows for AI coding agents.

  • 115,235 GitHub stars
  • MITLicence MIT

Supabase

Alternative toFirebase

Open source Firebase: Postgres database, auth, and file storage

  • 114,758 GitHub stars
  • Apache-2.0Licence Apache-2.0
  • #BaaS

Sherlock

Alternative toOSINT Industries

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

  • 109,111 GitHub stars
  • MITLicence MIT

VoiceStudio

Alternative toElevenLabs

Voice cloning, dubbing, and transcription that runs fully offline

  • 107,467 GitHub stars
  • AGPL-3.0Licence AGPL-3.0

Fastapi

Alternative toAWS API Gateway

High-performance Python API framework with auto OpenAPI documentation

  • 104,604 GitHub stars
  • MITLicence MIT

RuView

Alternative toAWS IoT

Intelligent AI agents for real-world applications

  • 103,835 GitHub stars
  • MITLicence MIT
  • #AI Agents

Neovim

Alternative toSublime Text

Hyperextensible Vim-based editor with Lua plugin support

  • 103,562 GitHub stars
  • Apache-2.0Licence Apache-2.0

Angular

InWeb Development

TypeScript web framework with signals, SSR, and first-party modules

  • 101,465 GitHub stars
  • MITLicence MIT

material-ui

Alternative toKendoReact

Open source React components for Google's Material Design

  • 99,319 GitHub stars
  • MITLicence MIT

LocalSend

Alternative toSend Anywhere

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

  • 98,259 GitHub stars
  • Apache-2.0Licence Apache-2.0

OpenCut

Alternative toCapCut

Open source video editing in your browser, free forever

  • 97,869 GitHub stars
  • MITLicence MIT
  • #Video

Vllm

Alternative toTogether AI

High-throughput LLM inference server with OpenAI-compatible API

  • 96,745 GitHub stars
  • Apache-2.0Licence Apache-2.0
  • #LLM

Zabbix

NEW

Alternative toDatadog

Self-hosted enterprise monitoring with agent and agentless collection.

  • 6,557 GitHub stars
  • AGPL-3.0Licence AGPL-3.0
  • #Monitoring

manim

Alternative toAnimo

Programmatic animation engine for explanatory math videos

  • 96,263 GitHub stars
  • MITLicence MIT
  • #Video

Stirling PDF

Alternative toAdobe Acrobat

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

  • 96,217 GitHub stars
  • MITLicence MIT

HA-MCP

NEW

Alternative toJosh.ai

Natural language Home Assistant control via MCP, MIT licensed.

  • 6,671 GitHub stars
  • MITLicence MIT
  • #IoT

Nvm

InDeveloper Tools

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

  • 95,858 GitHub stars
  • MITLicence MIT
  • #CLI

Zed

Alternative toCursor

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

  • 94,728 GitHub stars
  • Apache-2.0Licence Apache-2.0

OneUptime

NEW

Alternative toDatadog

Uptime, on-call, incidents, logs, and traces; one open source product.

  • 7,809 GitHub stars
  • Apache-2.0Licence Apache-2.0
  • #Monitoring

ragflow

Alternative toVectara

Open-source RAG engine with document parsing and agent orchestration

  • 93,996 GitHub stars
  • Apache-2.0Licence Apache-2.0
  • #LLM

Uptime Kuma

Alternative toUptimeRobot

Track uptime for websites and APIs with 90+ alert integrations

  • 93,471 GitHub stars
  • MITLicence MIT
  • #Monitoring

Litube

NEW

Alternative toYouTube Premium

Ad-free Android YouTube client with downloads and SponsorBlock.

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

OpenHands

Alternative toDevin AI

Delegate scoped coding tasks in isolated, reviewable agent sessions

  • 93,185 GitHub stars
  • MITLicence MIT
  • #AI Agents

PaddleOCR

Alternative toGoogle Document AI

Self-hosted OCR toolkit turning PDFs and images into LLM-ready data

  • 92,411 GitHub stars
  • Apache-2.0Licence Apache-2.0
  • #AI Agents

Apache SkyWalking

NEW

Alternative toDatadog

APM platform covering traces, metrics, logs, and AI agent monitoring.

  • 25,004 GitHub stars
  • Apache-2.0Licence Apache-2.0

Home Assistant

Alternative toSamsung SmartThings

Open source home automation with local control priority

  • 92,130 GitHub stars
  • Apache-2.0Licence Apache-2.0
  • #IoT

servers

Alternative toComposio

Open reference servers for connecting AI to external tools and data

  • 91,951 GitHub stars
  • CustomLicence Apache-2.0 and MIT (dual, transitioning)
  • #AI Agents

Nerimity

NEW

Alternative toDiscord

Self-hosted chat with servers, custom emoji, bots, and themes.

  • 300 GitHub stars
  • GPL-3.0Licence GPL-3.0
  • #Chat

uv

Alternative toAnaconda

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

  • 91,947 GitHub stars
  • Apache-2.0Licence Apache-2.0

Understand-Anything

Alternative toSourcegraph

Interactive knowledge graphs for codebases

  • 91,942 GitHub stars
  • MITLicence MIT

Haven

NEW

Alternative toDiscord

Self-hosted private chat server with voice and encrypted DMs.

  • 997 GitHub stars
  • AGPL-3.0Licence AGPL-3.0
  • #Chat

Worldmonitor

Alternative toSeerist

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

  • 90,482 GitHub stars
  • AGPL-3.0Licence AGPL-3.0

Syncthing

Alternative toResilio Connect

Decentralized continuous file sync with no central server

  • 90,353 GitHub stars
  • MPL-2.0Licence MPL-2.0

Icinga2

NEW

Alternative toDatadog

Self-hosted monitoring server for infrastructure and network checks.

  • 2,247 GitHub stars
  • GPL-3.0Licence GPL-3.0
  • #Monitoring

crawl4ai

Alternative toFirecrawl

LLM-ready web crawling without API keys or rate limits

  • 87,238 GitHub stars
  • Apache-2.0Licence Apache-2.0
  • #Scraping

OmniRoute

Alternative toOpenRouter

352-provider AI gateway with automatic fallback and token compression

  • 86,839 GitHub stars
  • MITLicence MIT
  • #LLM

Checkmk

NEW

Alternative toDatadog

Hybrid IT monitoring with auto-discovery and 2,000+ integrations.

  • 2,643 GitHub stars
  • GPL-2.0Licence GPL-2.0
  • #Monitoring

rtk

Alternative toTokenade

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

  • 86,152 GitHub stars
  • Apache-2.0Licence Apache-2.0
  • #CLI
Browse all 1,219 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
626

Developer Tools

REA (Reverse Engineer Anything), Skills for Real Engineers, superpowers525

AI & Machine Learning

freeCodeCamp, REA (Reverse Engineer Anything), OpenClaw294

Business & Productivity

OpenClaw, Excalidraw, RustDesk216

Web Development

Skills for Real Engineers, freeCodeCamp, superpowers190

Security & Monitoring

RustDesk, REA (Reverse Engineer Anything), Sherlock165

Communication & Collaboration

iptv, freeCodeCamp, Excalidraw156

IT Management

Immich, RustDesk, Stirling PDF133

LLMOps & AI Tooling

Hermes Agent, OpenCode, MarkItDown131

DevOps & CI/CD

Nvm, Uptime Kuma, Netdata130

Cloud & Hosting

dify, RuView, OmniRoute127

Design & Creative

ComfyUI, Excalidraw, Godot Engine126

Product & Project Management

agency-agents, freeCodeCamp, Gstack119

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
  • Discord to Stoat
  • 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
  • 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
  • Discord to Stoat
  • 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