
CodePen
CodeSandbox
replit
Pastebin.com
JS Bin
VS Code
GitHub
Test your JavaScript, CSS, HTML or CoffeeScript online with JSFiddle code editor.

VS Code
Zed
Cursor
Sublime Text
GitHub
AppCode
EasyCode.ai
1DevTool puts 9 essential developer tools — console, API client, database, and more — into one window, giving your AI agent full visibility so it sees exactly what you see. No more copy-pasting context.

Which is more popular?
Based on our record, JSFiddle seems to be a lot more popular than 1DevTool. While we know about 204 links to JSFiddle, we've tracked only 1 mention of 1DevTool.
Website, pricing, platforms and company facts side by side.
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|---|---|---|
| Website | jsfiddle.net | 1devtool.com |
| Pricing | — | |
| Platforms | — | |
| Company | — | Startup from Vietnam · 1 - 9 employees · 2026 |
| Listed in |
In their own words, as submitted to SaaSHub.


No description of JSFiddle yet.
1DevTool saves developers 40+ minutes every day by eliminating the constant switching between Chrome, terminal, AI tools, and notes apps. One workspace. Zero interruptions. 🐛 Browser + AI — Stop copy-pasting errors to ChatGPT One click sends console logs, network requests, errors, and screenshots...
What each product offers, as listed by its team.


Possible disadvantages
An editorial look at what each product does well and who it suits.


Overall verdict
Why this product is good
Recommended for
Overall verdict
Why this product is good
Recommended for
Walkthroughs and reviews on video.
Dashboard JSFiddle Online JavaScript Editor jQuery, Angular, Backbone, Underscore, Knockout, Y
More videos
1DevTool - AI code editor & coding assistant, all in one IDE
How often each product is chosen within a category, 0–100% relative to the other.


As answered by people managing JSFiddle and 1DevTool.
1DevTool's answer:
1DevTool is the only developer workspace that combines a browser, AI prompt editor, persistent terminals, smart notifications, and activity logs in one app — and sends console errors, network requests, and screenshots to your AI agent in a single click. No copy-pasting. No tab-switching. Developers save 40+ minutes every day without changing how they work.
1DevTool's answer:
Indie developers and solo founders Freelance full-stack developers AI-assisted development teams
1DevTool's answer:
Cursor and GitHub Copilot are great AI editors — but they don't eliminate the switching between Chrome, terminal, and AI tools that kills your focus. 1DevTool does. It's also a one-time $29 payment. No monthly subscription. No vendor lock-in. You own it forever.
1DevTool's answer:
Electron, Node.js, React
1DevTool's answer:
Full-stack developers and indie hackers who use AI coding agents (Claude, Codex, Gemini) daily and are frustrated by the constant context-switching between their editor, browser, terminal, and AI chat. Especially solo developers and freelancers who want a lean, focused environment without paying for 5 separate SaaS tools every month.
1DevTool's answer:
Built by a solo indie developer who was tired of Alt-Tabbing 50 times a day just to debug one bug. The idea was simple: what if your browser, terminal, and AI assistant all lived in the same window? 1DevTool was born from that frustration — a no-nonsense workspace built for developers who want to stay in flow and ship faster.
Share your experience with using JSFiddle and 1DevTool. For example, how are they different and which one is better?
External articles and on-site reviews we used to compare the two products.


Test your javascript, CSS, HTML or coffeescript online with jsfiddle code editor. Jsfiddle – code playground.
JSFiddle cannot be used to host code on your server. The code has to be on JSFiddle and is public all the time.
What is missing from JSFiddle is live previews. You have to basically refresh the page by clicking on the play button. And compared to other playgrounds, JSFiddle is probably the slowest. Another slightly frustrating...
We have no reviews of 1DevTool yet. Be the first one to post
Recommendations tracked on public social media and blogs since March 2021.


Https://jsfiddle.net/ used to be also very popular, I see that it is still available, but haven't used it in a while. Which other alternatives do people use now days? - Source: Hacker News / about 2 months ago
Coding is like learning a new language—you must practice by writing code, not just reading about it. Use free online editors like CodePen, JSFiddle, or Replit to experiment. - Source: dev.to / about 1 year ago
As you embark on these projects, take your time to familiarize yourself with HTML tags and CSS properties. Use online tools like CodePen or JSFiddle to experiment with your code and visualize your results. - Source: dev.to / over 1 year ago
I shipped a feature this week that has zero productivity value, takes about 250ms to set up, and made me laugh out loud the first time I saw it work. It's a setting in 1DevTool that puts a tiny cartoon manager next to your Claude Code... - Source: dev.to / 6 months ago
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