SimilarSiteSearch

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.

We’ll send a link to confirm. Your address is only used for these alerts.

Visit CodePen

01 · 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

No ad trackersRegistered in the EUFree planOnly in English

None of the 60 sites closest to CodePen match these filters. We read imprints and pricing pages once a week, so more sites qualify as we get to them.

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 and search numbers · 4 technologies
Neighbours
k = 60
Sites searched
9,217
Vector
384-d
Query
37 ms

Built with

CDN
Email hosting
DNS hosting
SaaS tools (verified in DNS)