CodePen
Online code editor in Developer tools
More people criticize it than recommend it. Lets people write, share and deploy front-end code in the browser with no install. Critics say the 2.0 interface is cluttered and raises privacy concerns.
6 people recommended CodePen in Hacker News comments, 5 had mixed feelings and 19 criticized it, November 2025 to October 2026.
3 of the 6 people who recommend it commented in one thread, “CodePen 2.0”.
Summary written by Claude from the comments below.
30 people gave an opinion
- recommend it
- 6
- mixed feelings
- 5
- warn against or regret it
- 19
The record
Recommended in 3 of 12 months
In 5 different threads.
- November 2025: not recommended
- December 2025: not recommended
- January 2026: not recommended
- February 2026: not recommended
- March 2026: not recommended
- April 2026: not recommended
- May 2026: not recommended
- June 2026: not recommended
- July 2026: recommended
- August 2026: recommended
- September 2026: recommended
- October 2026: not recommended
Why it doesn’t carry the badge
- 6 people recommend itNeeds 10 or more, not met.
- 0.3 recommenders for every criticNeeds 2 to 1 or better, not met.
- Recommended in 3 of 12 monthsNeeds 4 or more, not met.
- Recommended in 5 threadsNeeds 5 or more, met.
- The biggest thread supplies 50% of its recommendersNeeds half or less, met.
The same rules apply to every product, and the badge can’t be bought. Mixed feelings count toward neither side. How the badge works
What people say about it
Reasons grouped from a sample of 30 of the 33 opinions about it, picked in proportion to how many people recommend it, have mixed feelings and criticize it. Each mark is one comment in the sample. Open a reason to read what they said.
What people warn about
Each mark is one comment
Cluttered new interface and homepage
“the new interface makes me feel more like I'm building a website inside of a website”
Comment from 30 Jul 2026 in “CodePen 2.0” “the shitty UX popup modal at the bottom will be the death of them”
Comment from 31 Jul 2026 in “CodePen 2.0” “So much shit is going on on that homepage.”
Comment from 31 Jul 2026 in “CodePen 2.0” - Comment from 30 Jul 2026 in “CodePen 2.0”
Undisclosed data handling and credentials risk
“CodePen does not disclose this in neither ToS nor in Privacy Policy, only in Builds documentation”
Comment from 7 Sep 2026 in “Apparently CodePen 2.0 sends data to their servers as you type” “any secrets typed/pasted in there should be considered compromized”
Comment from 7 Sep 2026 in “Apparently CodePen 2.0 sends data to their servers as you type” “please don't paste credentials into codepen”
Comment from 7 Sep 2026 in “Apparently CodePen 2.0 sends data to their servers as you type” Poor search and no featured pens
“Looking up codepens is extremely poor, you often only look up one "tag" and after the first page quality gets worse.”
Comment from 30 Jul 2026 in “CodePen 2.0” “Now it seems there are no featured pens on the homepage, so you can't just explore pens aimlessly.”
Comment from 31 Jul 2026 in “CodePen 2.0” Heavy JavaScript needed to view pens
“Codepen ended up introducing the JS execution requirement to view the content.”
Comment from 22 Jan 2026 in “CSS Optical Illusions” “makes me load 2mb of code pen and heavy ui to see the example”
Comment from 28 Dec 2025 in “Replacing JavaScript with Just HTML”
Why people recommend it
Each mark is one comment
Native web playground without build steps
“your browser never had to download typescript, sass, babel, tailwind, etc...”
Comment from 11 Sep 2026 in “Apparently CodePen 2.0 sends data to their servers as you type” “Greate place to explore the limits of what native web offers.”
Comment from 30 Jul 2026 in “CodePen 2.0” Showcase of pens to learn from
“To see how people are using CSS, I'd recommend”
Comment from 12 Aug 2026 in “CSS Properties You Should Know for Better Text Designs” “where genius Artists/People express their art”
Comment from 15 Jul 2026 in “Ambient Website Background Clouds”
What people said
30 of the 33 opinions about it, picked in proportion to the three counts, newest first. Each links to the original comment.
“that don't need an account or you can choose to log in through google/github”
“localStorage can provide keystroke level saving on the client and survive a crash just fine”
“your browser never had to download typescript, sass, babel, tailwind, etc...”
“I've received it just from entering my e-mail and nothing else.”
“please don't paste credentials into codepen”
“CodePen refreshing for me plenty of times”
“any secrets typed/pasted in there should be considered compromized”
“CodePen does not disclose this in neither ToS nor in Privacy Policy, only in Builds documentation”
“these useless shenanigans of codepen”
“Codepen is an awful experience on mobile”
“To see how people are using CSS, I'd recommend”
“they forced sign-up to view and explore”
“So much shit is going on on that homepage.”
“the shitty UX popup modal at the bottom will be the death of them”
“Now it seems there are no featured pens on the homepage, so you can't just explore pens aimlessly.”
“LLMs take away the need for that.”
“A textbook definition of "feature creep”
“but it's a big mistake IMHO”
“Really handy to be able to deploy a prototype or demo of something”
“This feature was always my hangup for using CodePen as a UI playground.”
“Looking up codepens is extremely poor, you often only look up one "tag" and after the first page quality gets worse.”
“Used to love this site back when you could see what other craftsmen were actually creating by hand.”
“Greate place to explore the limits of what native web offers.”
“it said I had to upgrade to a plan that supported it”
“the new interface makes me feel more like I'm building a website inside of a website”
“where genius Artists/People express their art”
“Codepen ended up introducing the JS execution requirement to view the content.”
“makes me load 2mb of code pen and heavy ui to see the example”
“If you us code pen you can bookmark the snippets.”
“they don't have the game/pets elements that make coding petpages fun”
Counts come from 1,791,911 Hacker News comments labeled by Claude, November 2025 to October 2026, with data through October 31, 2026. Counts updated 2 Nov 2026. How we count. Report a mistake.