codepen.io
CodePen
Who runs CodePen, what it tracks and what it costs, and the 20 closest online code editor alternatives.
- Who’s behind it
- Not stated
- Online since
- Unknown
- Trackers
- Couldn’t check
- Prices
- No pricing page
- Last price change
- –
- Closest alternative
- JSFiddle
Measured from CodePen’s own pages, the Internet Archive and public records. Hover a dotted value for its source and date.
Visit CodePen01 · Who’s behind it
Who runs CodePen
CodePen codepen.io
Wikidata: website for testing and showcasing HTML, CSS and JavaScript
- Company
- No imprint we could read
- Online since
- Not in the Internet Archive
- Audience
- In English
02 · Privacy
What CodePen tracks
We couldn’t read codepen.io’s homepage (bot protection page), so we can’t say what it loads.
03 · Alternatives
Alternatives to CodePen
Thumbs up if it’s a real alternative to CodePen, thumbs down if it isn’t.
We can’t read codepen.io’s homepage (bot protection page), so it’s compared on what Wikidata and Wikipedia say about it.
- 01
JSFiddle - React, Tailwind, and code Playground
JSFiddle - Test your React, Tailwind, JavaScript, CSS, HTML online with JSFiddle.
Very close - 02
StackBlitz | Instant Dev Environments | Click. Code. Done.
StackBlitz is the collaborative browser-based IDE for web developers. StackBlitz eliminates time-consuming local configuration and lets developers spend more time building.
Very close - 03
CodeSandbox: Instant Cloud Development Environments
CodeSandbox is a cloud development platform that empowers developers to code, collaborate and ship projects of any size from any device in record time.
Very close - 04
Glitch Blog
The official blog for glitch.com
Very close - 05
AI App and Website Builder | Replit
Describe what you want. Replit builds it. Get a working app or website in minutes. No coding required.
Close - 06
How To Make a Website – Free Website Builder | Strikingly
Strikingly is the best free website builder for anyone to create a gorgeous, mobile-friendly website easily. Quick, simple and stylish. Make your own free website today.
Very close - 07
Visme: AI Presentation maker, Infographics, and One pager templates
Create professional presentations, interactive infographics, beautiful design and engaging videos, all in one place. Start using Visme today.
Very close - 08
Astro
Astro builds fast content sites, powerful web applications, dynamic server APIs, and everything in-between.
Very close - 09
AI Coding Agent for Building Ambitious Software | Cursor
Built to make you extraordinarily productive, agents turn ideas into code. Accelerate development by handing off tasks to Cursor.
Close - 10
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.
Very close - 11
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.
Very close - 12
AI based software to generate application code
Close - 13
Bring Your Business Online | Websites & More – Jimdo
Try Jimdo, the all-in-one small business solution. Websites, online stores, bookings, logos, SEO, analytics, domains, and hosting.
Very close - 14
Carrd - Simple, free, fully responsive one-page sites for pretty much anything
A free platform for building simple, fully responsive one-page sites for pretty much anything.
Very close - 15
Create a Website for Free. Tilda Website Builder
Create a website, online store, landing page with Tilda intuitive website builder. Build your site from hundreds of pre-designed templates and publish it today. No code required.
Very close - 16
online graphic design platform
Close - 17 Piktochart piktochart.com
web-based graphic design tool
Close - 18
Webnode Website Builder | Build Your Free Website with AI
Create your website instantly with Webnode’s AI Website Builder. Generate text, images, and layout in seconds, or use website templates. Start for free.
Very close - 19
Push your ideas to the web | Netlify
Create with AI or code, deploy instantly on production infrastructure. One platform to build and ship.
Very close - 20
Tally - Create Beautiful Forms for Free | Unlimited Forms & Submissions
The simplest way to create beautiful, professional forms in seconds. Unlimited forms, unlimited submissions, forever free. Just start typing - no coding needed.
Close
Closest first, by how much each site’s offer resembles CodePen’s. Trackers are counted the same way as above. Highlighted technologies are ones CodePen uses too. Votes and comments come from visitors and don’t change the order.
04 · History
What changed
Price and policy history →No changes yet. Each new crawl is compared with the last one, and what CodePen adds, drops or rewrites shows up here.
05 · Details
How we measure
Alternatives are matched by what sites actually offer, from their homepages, Wikidata and a summary by Claude, in any language. Trackers and the rest of the stack come from the homepage’s code and DNS records.
The full technology stack, the competitor map and search numbers · 4 technologies
- Neighbours
- k = 20
- Sites searched
- 9,192
- Vector
- 384-d
- Query
- 25 ms
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). Hover for the numbers, click to jump to it in the list.
similarity × popularity
Built with
- CDN
- Cloudflare header cf-ray: a5631b3a6a94873e-HAM
- Email hosting
- Google Workspace MX aspmx.l.google.com
- DNS hosting
- Cloudflare DNS NS kristin.ns.cloudflare.com
- SaaS tools (verified in DNS)
- Google Search Console TXT google-site-verification=ee6yZSYLRMH7NdG8DSox4-fH0btH7GdMbMyY7zHenxY
What competitors use
Across the 20 closest sites.
- Google Search Console 19/20
- Google Workspace 16/20
- Cloudflare 13/20
- Cloudflare DNS 11/20
- Microsoft 365 · not on codepen.io 10/20
- Stripe · not on codepen.io 9/20
- HubSpot · not on codepen.io 8/20
- OpenAI · not on codepen.io 8/20
- Apple Business · not on codepen.io 7/20
- Atlassian · not on codepen.io 7/20
- Amazon Route 53 · not on codepen.io 7/20
- Next.js · not on codepen.io 6/20
- React · not on codepen.io 6/20
- Google Tag Manager · not on codepen.io 5/20
- Zendesk · not on codepen.io 5/20
- Cloudflare Web Analytics · not on codepen.io 4/20