CodeSandbox vs JSFiddle

A side-by-side comparison built from both listings. Blank cells mean the company has not given that detail; we never guess.

CodeSandbox compared with JSFiddle
Detail	CodeSandbox	JSFiddle
What it does	Instant Cloud Development Environments	React, Tailwind, and code Playground
Stage	Not given	Not given
Founded	Not given	Not given
Based in	Not given	Not given
Pricing model	Not given	freemium
Pricing	Not given	Free tier available; PRO subscription at €8 per month or €80 one-time for 1 year
Key features	Programmatically spin up isolated sandboxes Secure and isolated code execution Scale to millions of concurrent VMs Continuous context with snapshots Quick start and auto resume in 2 seconds Customizable hibernation settings Sandpack for live coding in browser Storybook integration CodeSandbox SDK for programmatic control Template universe for multiple stacks	React support Tailwind CSS support Ad-free editing with PRO Fiddle Pages custom hosting Private collections and fiddles Pre-released features access
What makes it different	Instant VM provisioning within 2 seconds Built specifically for AI agents and code interpretation Powerful APIs for creating isolated development environments Runs completely in isolation for safe untrusted code execution	Used by 4+ million developers globally Support for multiple frameworks including React and Tailwind
Free plan	Not given	Not given
Open source	Not given	Not given
Platforms	Not given	Not given
Public API	Not given	Not given
Community votes	0	0
DR (Domain Rating by Ahrefs)	87 no change since last check	87 no change since last check
Trust Flow (Majestic)	46	74
Citation Flow (Majestic)	50	66
Referring domains (Majestic)	13358	20226

3 details filled in for both companies.