Sites like Open Source

01 · Entity

About Open Source

Open Source googlesource.com

Google Open Source

Google <3 Open Source

Top 10K · #2,811 English 3 technologies Crawled Nov 6, 2026

Visit Open Source

Summary by Claude

googlesource.com hosts Google's Git repositories for open source projects such as Android, Chromium and Go, and its homepage redirects to Google's Open Source portal covering released projects, programs like Google Summer of Code, and the open source blog.

Who it’s for

Open source developers and contributors

Business model

None (corporate open source program)

• source code hosting
• Git repository hosting
• Gerrit code review
• Android source code
• Chromium source
• Google Summer of Code
• Open Source Programs Office
• open source projects directory

02 · Embedding space

Competitor map

Each alternative by how close its vector is to Open Source’s (x) and how much traffic it gets, how much of the stack it shares, or where it sits in the embedding space itself (y). Lines split each axis at the median. Hover for the numbers, click to jump to it in the list.

1. 01
   GitHub github.com Top 100 English

   GitHub · Change is constant. GitHub keeps you ahead. · GitHub · GitHub

   Join the world's most widely adopted, AI-powered developer platform where millions of developers, businesses, and the largest open source community build software that advances humanity.

   • Google Search Console
   • Adobe
   • Apple Business
   • Atlassian
   • Contentful
   • DocuSign

   0 say GitHub is a good alternative to Open Source 0 say GitHub isn’t a real alternative to Open Source

   Comment
   Very close cos 0.909
2. 02
   Codeberg e.V. codeberg.org Top 10K English

   Codeberg.org

   Codeberg is a non-profit community-led organization that aims to help free and open source projects prosper by giving them a safe and friendly home.

   0 say Codeberg e.V. is a good alternative to Open Source 0 say Codeberg e.V. isn’t a real alternative to Open Source

   Comment
   Very close cos 0.905
3. 03
   git-scm.com Top 10K English

   Git

   distributed version control system

   • Cloudflare
   • Cloudflare DNS
   • Fastly
   • jQuery

   0 say git-scm.com is a good alternative to Open Source 0 say git-scm.com isn’t a real alternative to Open Source

   Comment
   Very close cos 0.902
4. 04
   web.dev Top 10K English

   web.dev

   Guidance to build modern web experiences that work on any browser.

   • Google Cloud
   • Google Fonts
   • Google Search Console

   0 say web.dev is a good alternative to Open Source 0 say web.dev isn’t a real alternative to Open Source

   Comment
   Very close cos 0.898
5. 05
   Gitea gitea.com Top 10K

   Gitea Official Website

   Gitea - Git with a cup of tea! Painless self-hosted all-in-one software development service, including Git hosting, code review, team collaboration, package registry and CI/CD

   • Google Fonts
   • Google Search Console
   • Amazon SES
   • Cloudflare
   • Cloudflare DNS
   • Cloudflare Web Analytics

   0 say Gitea is a good alternative to Open Source 0 say Gitea isn’t a real alternative to Open Source

   Comment
   Very close cos 0.897
6. 06
   Zenodo zenodo.org Top 10K English

   Zenodo

   research data repository

   • Google Search Console
   • cdnjs
   • Cloudflare DNS
   • Matomo
   • Microsoft 365
   • nginx

   0 say Zenodo is a good alternative to Open Source 0 say Zenodo isn’t a real alternative to Open Source

   Comment
   Very close cos 0.896
7. 07
   Gitee gitee.com Top 10K Chinese

   Gitee - 基于 Git 的代码托管和研发协作平台

   面向企业提供一站式研发管理解决方案，包括代码管理、项目管理、文档协作、测试管理、CICD、效能度量等多个模块，支持SaaS、私有化等多种部署方式，帮助企业有序规划和管理研发过程，提升研发效率和质量。

   • Google Search Console
   • Next.js
   • React

   0 say Gitee is a good alternative to Open Source 0 say Gitee isn’t a real alternative to Open Source

   Comment
   Close cos 0.893
8. 08
   Read the Docs readthedocs.io Top 1K English

   Full featured documentation deployment platform - Read the Docs

   Read the Docs is a documentation building and hosting platform aimed at helping developers creating documentation from code with versioned documentation, integrated search, pull request previews and more.

   • Cloudflare
   • Cloudflare DNS
   • Font Awesome
   • Google Workspace

   0 say Read the Docs is a good alternative to Open Source 0 say Read the Docs isn’t a real alternative to Open Source

   Comment
   Close cos 0.893
9. 09
   doxygen.org Top 10K English

   Doxygen homepage

   Source code documentation and analysis tool

   • Bootstrap
   • Cloudflare
   • Cloudflare DNS
   • Cloudflare Web Analytics
   • Google AdSense

   0 say doxygen.org is a good alternative to Open Source 0 say doxygen.org isn’t a real alternative to Open Source

   Comment
   Close cos 0.893
10. 10
    java.net Top 10K

    defunct Java technology related community website with a web-based source code repository for Java projects

    • Akamai Edge DNS

    0 say java.net is a good alternative to Open Source 0 say java.net isn’t a real alternative to Open Source

    Comment
    Close cos 0.891
11. 11
    Go go.dev Top 10K English

    The Go Programming Language

    Go is an open source programming language that makes it simple to build secure, scalable systems.

    • Google Cloud
    • Google Fonts
    • Google Search Console
    • Google Cloud DNS
    • Google Tag Manager
    • Google Workspace

    0 say Go is a good alternative to Open Source 0 say Go isn’t a real alternative to Open Source

    Comment
    Close cos 0.891
12. 12
    Zotero zotero.org Top 10K English

    Zotero | Your personal research assistant

    Zotero is a free, easy-to-use tool to help you collect, organize, cite, and share research.

    • Amazon SES
    • Apache HTTP Server
    • Amazon CloudFront
    • Microsoft 365
    • Amazon Route 53

    0 say Zotero is a good alternative to Open Source 0 say Zotero isn’t a real alternative to Open Source

    Comment
    Close cos 0.891
13. 13
    Linux kernel kernel.org Top 10K English

    The Linux Kernel Archives

    Unix-like operating system kernel, basis for all Linux operating systems

    • Google Search Console
    • nginx

    0 say Linux kernel is a good alternative to Open Source 0 say Linux kernel isn’t a real alternative to Open Source

    Comment
    Close cos 0.891
14. 14
    SourceForge sourceforge.net Top 1K English

    Compare B2B Software, Download, & Develop Open Source & Business Software - SourceForge

    SourceForge is the complete software discovery platform. SourceForge is the largest B2B software review and comparison site in the world, and features the largest business software directory, as well as free & fast open source software downloads and development.

    • Google Search Console
    • Bing Webmaster Tools
    • Cloudflare
    • Google Analytics
    • Mailchimp
    • Matomo

    0 say SourceForge is a good alternative to Open Source 0 say SourceForge isn’t a real alternative to Open Source

    Comment
    Close cos 0.887
15. 15
    GitLab gitlab.com Top 1K English

    GitLab - Speed with control for agentic software engineering

    Teams and agents ship trusted software faster with GitLab, the intelligent orchestration platform with context and governance for the entire software lifecycle.

    • Google Search Console
    • Adobe
    • Apple Business
    • Atlassian
    • Cloudflare
    • Cloudflare DNS

    0 say GitLab is a good alternative to Open Source 0 say GitLab isn’t a real alternative to Open Source

    Comment
    Close cos 0.888
16. 16
    Apache Software Foundation apache.org Top 1K English

    Welcome to The Apache Software Foundation | Apache Software Foundation

    American nonprofit open-source software community

    • Google Search Console
    • Apache HTTP Server
    • Atlassian
    • Bootstrap
    • Fastly
    • GlobalSign

    0 say Apache Software Foundation is a good alternative to Open Source 0 say Apache Software Foundation isn’t a real alternative to Open Source

    Comment
    Close cos 0.883
17. 17
    blog.google Top 10K English

    News from Google | Google Product and Technology News and Stories

    Get the latest news and stories about Google products, technology and innovation on News from Google, Google's official blog.

    • Google Cloud
    • Google Fonts
    • Google Tag Manager
    • Google Workspace
    • Meta Business Suite

    0 say blog.google is a good alternative to Open Source 0 say blog.google isn’t a real alternative to Open Source

    Comment
    Close cos 0.883
18. 18
    RustDesk rustdesk.com Top 10K English

    RustDesk: Open-Source Remote Desktop with Self-Hosted Server Solutions

    RustDesk is open-source remote desktop software for your own self-hosted server, a TeamViewer and AnyDesk alternative for Windows, macOS, Linux and Android.

    • Google Search Console
    • Amazon SES
    • Astro
    • Cloudflare
    • Cloudflare DNS
    • Google Analytics

    0 say RustDesk is a good alternative to Open Source 0 say RustDesk isn’t a real alternative to Open Source

    Comment
    Close cos 0.882
19. 19
    KDE kde.org Top 10K English

    Home - KDE Community

    KDE is an open community of friendly people who want to create a world in which everyone has control over their digital life and enjoys freedom and privacy.

    • Google Search Console
    • Apache HTTP Server
    • Matomo
    • Microsoft 365

    0 say KDE is a good alternative to Open Source 0 say KDE isn’t a real alternative to Open Source

    Comment
    Close cos 0.881
20. 20
    OSF osf.io Top 10K English

    OSF

    tools that make open science practice easier

    • Google Search Console
    • Google Cloud DNS
    • Mailchimp
    • Mailgun
    • Mailchimp Transactional

    0 say OSF is a good alternative to Open Source 0 say OSF isn’t a real alternative to Open Source

    Comment
    Close cos 0.883

Ranked by score: the cosine similarity of each site’s vector to googlesource.com’s, less a small penalty for generic sites that are close to everything. Highlighted technologies are ones Open Source uses too. Votes and comments come from visitors and don’t change the ranking.

04 · Fingerprints

Technology

What Open Source is built with, and what its closest competitors use, from its homepage’s code and its DNS records.