
D3.js
Vizzu
Jupyter
Vega-Lite
nivo
Looker
Microsoft Power BI
Interactive code examples/posts

CodePen
CodeSandbox
replit
Pastebin.com
JS Bin
VS Code
GitHub
Test your JavaScript, CSS, HTML or CoffeeScript online with JSFiddle code editor.
Which is more popular?
Based on our record, Observable should be more popular than JSFiddle. It has been mentioned 347 times since March 2021.
Website, pricing, platforms and company facts side by side.
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| Website | observablehq.com | jsfiddle.net |
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What each product offers, as listed by its team.


Possible disadvantages
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.
Observable Overview
More videos
Dashboard JSFiddle Online JavaScript Editor jQuery, Angular, Backbone, Underscore, Knockout, Y
More videos
How often each product is chosen within a category, 0–100% relative to the other.


Share your experience with using Observable and JSFiddle. For example, how are they different and which one is better?
External articles and on-site reviews we used to compare the two products.


Observable is a Grafana alternative that enables users to visualize data via charts and dashboards using code.
A few options were disregarded from the start due to a hefty price tag, these were Looker, Tableau, Power BI, GoodData. A few options like Trevor.io, Preset, Observable were disregarded as they did not seem to fit our...
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...
Recommendations tracked on public social media and blogs since March 2021.


Holy hell, this is great. I once made a little tool for getting more intuitive spatial scales for things in the universe at https://observablehq.com/@ikesau/scale-to-the-universe I feel like you could do something similar for these sorts... - Source: Hacker News / 20 days ago
Folks may find https://observablehq.com/@fil/poisson-distribution-generators useful. - Source: Hacker News / about 1 month ago
That's because Gaussian splats are ellipses without any texture of their own (more or less), missing any texture that an actual brush stroke would have. Because the ellipses are so elongated in the finer details it feels like layered... - Source: Hacker News / 2 months ago
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 / 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
When comparing Observable and JSFiddle, you can also consider the following products.

D3.js is a JavaScript library for manipulating documents based on data. D3 helps you bring data to life using HTML, SVG, and CSS.
Compare D3.js to Observable or JSFiddle:


Vizzu lets you use animated charts to share insights in complex data sets as self-explanatory stories.
Compare Vizzu to Observable or JSFiddle:


Project Jupyter exists to develop open-source software, open-standards, and services for interactive computing across dozens of programming languages. Ready to get started? Try it in your browser Install the Notebook.
Compare Jupyter to Observable or JSFiddle:

Code, create, andlearn together. Use our free, collaborative, in-browser IDE to code in 50+ languages — without spending a second on setup.
Compare replit to Observable or JSFiddle: