Sites like CodePen

01 · Entity

About CodePen

CodePen codepen.io

Wikidata: website for testing and showcasing HTML, CSS and JavaScript

Top 10K · #4,220 English 4 technologies Crawled Nov 6, 2026

Visit CodePen

Summary by Claude

CodePen is an online code editor and community where users write, test and share front-end code snippets ("pens") in HTML, CSS and JavaScript with live preview.

Who it’s for

Front-end web developers and designers

Business model

Freemium subscriptions (CodePen Pro)

• online code editor
• HTML CSS JavaScript playground
• live code preview
• front-end code snippets
• code demos showcase
• browser-based code editor
• web design prototyping
• embedded code examples

02 · Embedding space

Competitor map

Each alternative by how close its vector is to CodePen’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.

We can’t read codepen.io’s homepage (bot protection page), so it’s compared on what Wikidata and Wikipedia say about it.

1. 01
   W3Schools w3schools.com Top 10K English

   W3Schools Online Web Tutorials

   Well organized and easy to understand Web building tutorials with lots of examples of how to use HTML, CSS, JavaScript, SQL, Python, PHP, Bootstrap, Java, XML and more.

   • Google Search Console
   • Google Workspace
   • Amazon SES
   • AngularJS
   • Apple Business
   • Brevo

   0 say W3Schools is a good alternative to CodePen 0 say W3Schools isn’t a real alternative to CodePen

   Comment
   Close cos 0.892
2. 02
   Codecademy codecademy.com Top 10K English

   Learn to Code - for Free | Codecademy

   Learn the technical skills to get the job you want. Join over 50 million people choosing Codecademy to start a new career (or advance in their current one).

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

   0 say Codecademy is a good alternative to CodePen 0 say Codecademy isn’t a real alternative to CodePen

   Comment
   Close cos 0.892
3. 03
   LeetCode leetcode.com Top 10K English

   online platform for coding interview preparation

   • Cloudflare
   • Cloudflare DNS
   • Google Search Console
   • Google Workspace
   • Amazon SES
   • SendGrid

   0 say LeetCode is a good alternative to CodePen 0 say LeetCode isn’t a real alternative to CodePen

   Comment
   Close cos 0.886
4. 04
   Canva canva.com Top 1K English

   Canva

   online graphic design platform

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

   0 say Canva is a good alternative to CodePen 0 say Canva isn’t a real alternative to CodePen

   Comment
   Close cos 0.882
5. 05
   web.dev Top 10K English

   web.dev

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

   • Google Search Console
   • Google Cloud
   • Google Fonts

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

   Comment
   Close cos 0.879
6. 06
   pastebin.com Top 10K English

   Pastebin.com - #1 paste tool since 2002!

   Pastebin.com is the number one paste tool since 2002. Pastebin is a website where you can store text online for a set period of time.

   • Cloudflare
   • Cloudflare DNS
   • Google Search Console
   • Google Workspace
   • Amazon SES
   • Bootstrap

   0 say pastebin.com is a good alternative to CodePen 0 say pastebin.com isn’t a real alternative to CodePen

   Comment
   Close cos 0.877
7. 07
   Figma figma.com Top 1K English

   Figma: The collaborative canvas for design, code, and AI

   Figma is the canvas where design, code, and AI come together. From first idea to shipped product — go from concept to production with your whole team, in one place.

   • Google Search Console
   • Google Workspace
   • Adobe
   • Apple Business
   • Atlassian
   • Amazon CloudFront

   0 say Figma is a good alternative to CodePen 0 say Figma isn’t a real alternative to CodePen

   Comment
   Close cos 0.877
8. 08
   DEV Community dev.to Top 10K English

   DEV Community

   A space to discuss and keep up software development and manage your software career

   • Cloudflare DNS
   • Google Search Console
   • Google Workspace
   • Algolia
   • Apple Business
   • Fastly

   0 say DEV Community is a good alternative to CodePen 0 say DEV Community isn’t a real alternative to CodePen

   Comment
   Close cos 0.877
9. 09
   Flaticon flaticon.com Top 10K English

   That request didn't go through. Our security filter flagged something. You don't have permission to access this page.

   database of icons

   • Google Search Console
   • Google Workspace
   • Akamai
   • Amazon SES
   • Mailchimp
   • Zendesk

   0 say Flaticon is a good alternative to CodePen 0 say Flaticon isn’t a real alternative to CodePen

   Comment
   Close cos 0.870
10. 10
    Tinkercad tinkercad.com Top 10K

    Tinkercad

    Tinkercad is a free, easy-to-use app for 3D design, electronics, and coding.

    • Google Search Console
    • Bootstrap
    • Amazon CloudFront
    • Font Awesome
    • Meta Business Suite
    • Microsoft 365

    0 say Tinkercad is a good alternative to CodePen 0 say Tinkercad isn’t a real alternative to CodePen

    Comment
    Close cos 0.869
11. 11
    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 CodePen 0 say GitHub isn’t a real alternative to CodePen

    Comment
    Close cos 0.870
12. 12
    GeeksforGeeks geeksforgeeks.org Top 10K English

    GeeksforGeeks | Your All-in-One Learning Portal

    Your All-in-One Learning Portal. It contains well written, well thought and well explained computer science and programming articles, quizzes and practice/competitive programming/company interview Questions.

    • Google Search Console
    • Google Workspace
    • Amazon SES
    • Amazon CloudFront
    • Google Ads conversion tracking
    • Google Analytics

    0 say GeeksforGeeks is a good alternative to CodePen 0 say GeeksforGeeks isn’t a real alternative to CodePen

    Comment
    Close cos 0.871
13. 13
    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 CodePen 0 say Codeberg e.V. isn’t a real alternative to CodePen

    Comment
    Close cos 0.869
14. 14
    Replit replit.com Top 10K English

    AI App and Website Builder | Replit

    Describe what you want. Replit builds it. Get a working app or website in minutes. No coding required.

    • Cloudflare
    • Cloudflare DNS
    • Google Search Console
    • Google Workspace
    • Apple Business
    • Express

    0 say Replit is a good alternative to CodePen 0 say Replit isn’t a real alternative to CodePen

    Comment
    Close cos 0.868
15. 15
    Brilliant brilliant.org English

    Brilliant | Your Personal Tutor for Math and Coding

    Visual, interactive tutoring in math and coding, from 5th grade through college. Master concepts in algebra, calculus, Python, computer science, and more.

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

    0 say Brilliant is a good alternative to CodePen 0 say Brilliant isn’t a real alternative to CodePen

    Comment
    Close cos 0.869
16. 16
    Overleaf overleaf.com Top 10K English

    Overleaf, Online LaTeX Editor

    An online LaTeX editor that’s easy to use. No installation, real-time collaboration, version control, hundreds of LaTeX templates, and more.

    • Cloudflare DNS
    • Google Search Console
    • Google Workspace
    • Atlassian
    • Google Analytics
    • Google Cloud

    0 say Overleaf is a good alternative to CodePen 0 say Overleaf isn’t a real alternative to CodePen

    Comment
    Close cos 0.865
17. 17
    SignUpGenius signupgenius.com Top 10K English

    SignUpGenius: Free Sign Up Sheets, Fundraisers & Online Payments

    Create free sign up sheets, collect dues, run fundraisers, sell tickets, and more. Every way your group organizes and collects, in one place. Free to start.

    • Cloudflare
    • Cloudflare DNS
    • Google Search Console
    • Apple Business
    • Atlassian
    • Cloudflare Web Analytics

    0 say SignUpGenius is a good alternative to CodePen 0 say SignUpGenius isn’t a real alternative to CodePen

    Comment
    Close cos 0.865
18. 18
    Stack Overflow stackoverflow.com Top 1K English

    website for professional and enthusiast programmers

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

    0 say Stack Overflow is a good alternative to CodePen 0 say Stack Overflow isn’t a real alternative to CodePen

    Comment
    Close cos 0.867
19. 19
    doxygen.org Top 10K English

    Doxygen homepage

    Source code documentation and analysis tool

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

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

    Comment
    Close cos 0.865
20. 20
    Smashing Magazine smashingmagazine.com Top 10K English

    Smashing Magazine — For Web Designers And Developers

    Magazine on CSS, JavaScript, front-end, accessibility, UX and design. For developers, designers and front-end engineers.

    • Google Search Console
    • Google Workspace
    • Google Analytics
    • Mailchimp
    • Mailchimp Transactional
    • Netlify

    0 say Smashing Magazine is a good alternative to CodePen 0 say Smashing Magazine isn’t a real alternative to CodePen

    Comment
    Close cos 0.865

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

04 · Fingerprints

Technology

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