Open Source Alternatives
  • Alternatives
  • Categories
    Categories by size897 projects
    • Developer Tools464
    • AI & Machine Learning405
    • Web Development196
    • Business & Productivity195
    • Security & Monitoring130
    • Communication & Collaboration128
    • IT Management125
    • Cloud & Hosting108
    • Product & Project Management106
    • Data & Analytics104
    Browse all 21 categoriesDesign & Creative, LLMOps & AI Tooling and 9 more
  • Blog
  • Advertise
SearchNotion, Slack, password manager.../
Submit
Open Source Alternatives
  • Alternatives
    • Developer Tools464
    • AI & Machine Learning405
    • Web Development196
    • Business & Productivity195
    • Security & Monitoring130
    • Communication & Collaboration128
    • Browse all 21 categories
  • Blog
  • Advertise
Submit your project

New open source projects by email

The projects we add and every new guide. Free, unsubscribe any time.

Open Source Alternatives LogoOpen Source Alternatives

Handpicked Open Source Alternatives to Paid Softwares

Product

  • Categories
  • Tag
  • Advertise

Resources

  • Blog
  • Collection
  • Submit

Company

  • Privacy Policy
  • Terms of Service
  • Refund Policy
  • Sitemap

Alternatives

  • Claude Code
  • Jira
  • Notion
  • Slack
  • Linear
  • Wispr Flow
  • All alternatives
© 2026 Open Source Alternatives. All rights reserved.
Open SourceAlternatives

Category

Open Source Developer Tools

  • All
  • Developer Tools
  • Web Development
  • Backend Development
  • APIs & Integration
  • DevOps & CI/CD
  • Cloud & Hosting
  • LLMOps & AI Tooling
  • Databases & Storage
  • No-Code & Low-Code
  • Customer Support
  • IT Management
  • Marketing & Growth
  • Finance & Fintech
  • Product & Project Management
  • AI & Machine Learning
  • Data & Analytics
  • Communication & Collaboration
  • Business & Productivity
  • Design & Creative
  • Security & Monitoring
  • Web & App Development

464 projects, sorted by GitHub stars.

patent-disclosure-skill

Alternative toSolve Intelligence

Chinese patent disclosure drafting with AI-powered point mining

  • 12,039 GitHub stars
  • MITLicence MIT

ai-memory

Alternative toMem0

Persist AI agent context across sessions and tool switches

  • 11,876 GitHub stars
  • MITLicence MIT
  • #LLM

ipatool

Alternative toiMazing

Search and download IPA files for iOS, iPadOS, tvOS, and visionOS

  • 11,806 GitHub stars
  • MITLicence MIT

CocoIndex

Alternative toLlamaIndex

Incremental data framework for AI agents.

  • 11,726 GitHub stars
  • Apache-2.0Licence Apache-2.0
  • #AI Agents

Cloudflare Os

Alternative toDust

Open source AI workspace with sandboxed apps and Gatekeeper security

  • 11,537 GitHub stars
  • Apache-2.0Licence Apache-2.0

Kutt

Alternative toBitly

Self-hosted URL shortener with analytics and custom domains

  • 11,160 GitHub stars
  • MITLicence MIT

FerretDB

Alternative toMongoDB Atlas

Run MongoDB apps on PostgreSQL with no code changes needed

  • 11,089 GitHub stars
  • Apache-2.0Licence Apache-2.0
  • #Database

reclip

Alternative to4K Video Downloader Plus

Self-hosted video downloader for YouTube, TikTok, and 1000+ sites

  • 10,737 GitHub stars
  • MITLicence MIT
  • #Video

Keda

Alternative toKedify

Event-driven Kubernetes autoscaling with 70+ scalers and scale to zero

  • 10,646 GitHub stars
  • Apache-2.0Licence Apache-2.0

RealtimeSTT

Alternative toDeepgram

Real-time speech-to-text library with VAD and wake words

  • 10,196 GitHub stars
  • MITLicence MIT

accelerate

Alternative toLightning AI

Distribute PyTorch training to multi-GPU and TPU with four lines

  • 9,922 GitHub stars
  • Apache-2.0Licence Apache-2.0

flowsint

Alternative toMaltego

Self-hosted graph tool for OSINT and cybersecurity investigations

  • 9,878 GitHub stars
  • Apache-2.0Licence Apache-2.0
  • Previous
  • 1
  • More pages
  • 18
  • 19
  • 20
  • More pages
  • 39
  • Next