JSFiddle
by jsFiddle · Browser playground for HTML, CSS and JavaScript
BenchRank score
Screenshots of JSFiddle
Homepage
Overview
JSFiddle is an online editor with separate HTML, JavaScript and CSS panes and a result panel that renders the combined output. Fiddles can be started from boilerplates including jQuery, React, React + JSX, Preact, TypeScript, CoffeeScript, SCSS, CSS Grid, Bootstrap, PostCSS and Tailwind, with libraries pulled in from CDNJS and recent fiddles kept against an account.
- Best for
- Front-end developers testing HTML, CSS and JavaScript snippets in the browser without local setup.
- Pricing
- The page advertises free use and a 'Go PRO' upgrade, but shows no prices.
- Runs on
- Web
Strengths and trade-offs
Strengths
- Live result pane beside HTML, CSS and JavaScript editors
- Boilerplates for React, Preact, TypeScript, SCSS and Bootstrap
- External libraries available through CDNJS
- AI code completion listed as a feature
Trade-offs
- Carbon ads are displayed in the editor
- Collections are marked PRO, so gated behind a paid plan
- No prices published for the PRO plan on the captured page
- Only front-end languages shown; no server-side runtime
Pricing
Published plans and prices from JSFiddle’s own pricing page.
How this score is made up
Each dimension is scored out of 100 and combined into the headline score using fixed weights.
MCP support
Whether an agent can drive the product through the Model Context Protocol, and how much setup that takes.
Documentation
Publicly reachable docs — coverage, freshness, code samples and machine readability.
Agent friendliness
How readable the site is to an automated client: llms.txt, structured data, server-rendered content, crawler access.
Changelog
A public, dated record of what shipped and when — the clearest signal that a product is still alive.
Marketing site structure
Whether the site answers a buyer's questions: clear positioning, the pages that matter, and accessibility.
Page speed
How fast the site loads for real visitors: Chrome UX Report 75th-percentile LCP, INP and CLS, with a Lighthouse mobile run standing in where a site has too little traffic for field data.
Operational trust
Status page and incident history, security disclosure, compliance and data-processing documentation.
Measured, but not part of the score
Useful to know, but not a mark for or against the product — so these do not affect the ranking.
Openness
Source availability, self-hosting, data export and open standards. Scored and shown, but not part of the composite — paid SaaS is not worse for being paid SaaS.
Maintenance
Release cadence and repository activity. Scored and shown, but not part of the composite — it is only measurable for open repositories.
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Where this comes from
The JSFiddle pages BenchRank reads when it scores the product — its documentation, release notes, status and security pages, and its repository where there is one.
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Is this your product?
Claim jsFiddle to manage its profile. Claiming lets you suggest edits to the descriptive fields — it never changes scores or rankings.