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Online Code Runner - Python, JavaScript, PHP, SQL | Web.run — 18 websites ranked by shared content topics, category and on-page relevance.

Each result shows its full tech stack, contacts and AI-policy — not just a name · Browse all sites in Programming Languages →

Domain	Match	Title	Country/Lang	Category	AI files	Contact	AI-protection
codecombat.com ↗	70 match shared topic	CodeCombat - Coding games to learn Python and JavaScript	en	programming-languages	robotsllmsaihumans	emailphone	none
jshint.com ↗	65 match shared topic	JSHint, a JavaScript Code Quality Tool	en	programming-languages	robotsllmsaihumans	emailphone	none
js1k.com ↗	65 match shared topic	JS1k - The JavaScript code golfing competition	en	programming-languages	robotsllmsaihumans	emailphone	none
php.net ↗	60 match shared topic	PHP	en	programming-languages	robotsllmsaihumans	emailphone	none
python.org ↗	60 match shared topic	Welcome to Python.org	en	programming-languages	robotsllmsaihumans	emailphone	none
typescriptlang.org ↗	60 match shared topic	TypeScript: JavaScript With Syntax For Types.	en	programming-languages	robotsllmsaihumans	emailphone	none
codeforces.com ↗	60 match shared topic	Codeforces	en	programming-languages	robotsllmsaihumans	emailphone	full · 14
adventofcode.com ↗	60 match shared topic	Advent of Code 2025	en	programming-languages	robotsllmsaihumans	emailphone	none
matplotlib.org ↗	60 match shared topic	Matplotlib — Visualization with Python	en	programming-languages	robotsllmsaihumans	emailphone	none
codementor.io ↗	60 match shared topic	Codementor \| Get live 1:1 coding help, hire a developer, & more	en	programming-languages WooCommerce	robotsllmsaihumans	emailphone	none
perl.com ↗	60 match shared topic	Perl.com - programming news, code and culture	en	programming-languages	robotsllmsaihumans	emailphone	none
nodered.org ↗	60 match shared topic	Low-code programming for event-driven applications : Node-RED	en	programming-languages	robotsllmsaihumans	emailphone	none
opencodez.com ↗	60 match shared topic	opencodez \| develope \| share \| reuse	en	programming-languages WordPress WooCommerce	robotsllmsaihumans	emailphone	none
codecrafters.io ↗	60 match shared topic	CodeCrafters \| The Hardest Programming Challenges on the Internet	en	programming-languages	robotsllmsaihumans	emailphone	none
hackingwithswift.com ↗	60 match shared topic	Hacking with Swift – learn to code iPhone and iPad apps with free Swift tutorials	en	programming-languages Gumroad	robotsllmsaihumans	emailphone	partial · 8
codecampworld.ch ↗	60 match shared topic	Code Camp \| Coding & Feriencamps in der Schweiz	Switzerland en	programming-languages	robotsllmsaihumans	emailphone	none
codeweek.eu ↗	60 match shared topic	Join EU Code Week – Learn, Create, & Have Fun with Coding	European Union en	programming-languages	robotsllmsaihumans	emailphone	none
thephp.foundation ↗	60 match shared topic	The PHP Foundation — The PHP Foundation — Supporting, Advancing, and Developing the PHP Language	en	programming-languages	robotsllmsaihumans	emailphone	none

How the match score works

Each match is a 0–100 similarity score — the higher it is, the more two sites resemble one another. It’s computed automatically from our own crawl data (never from what a site says about itself) by combining several independent signals, so a high score means several of them point the same way:

shared topics how many of the same fine‑grained content topics (IAB sub‑categories) both sites cover — the main signal.
same category whether they sit in the same business / industry category.
content & title how closely their titles and page descriptions line up in wording and meaning.

No single signal decides the result — they’re blended together. Treat the score as a way to rank candidates rather than an absolute percentage; the chips on each result show which signals contributed.