
JSFiddle
CodePen
CodeSandbox
Pastebin.com
replit
JS Bin
VS Code
GitHub
Endtest
BrowserStack
Sauce Labs
Ghost Inspector
Selenium
CrossBrowserTesting
TestMu AI (Formerly LambdaTest)
BugBug.io
Endtest is an agentic AI platform for end-to-end test automation that helps teams create, run, maintain, and scale automated tests faster, without writing code. It combines a low-code testing interface with AI agents that can generate editable tests, assist with maintenance, import tests from external files, and automate real-world workflows across web, mobile, API, database, email, SMS, file, visual, and accessibility testing.
Users can create tests manually, record them, import them, or generate them with the AI Test Creation Agent. Unlike generic AI tools that produce fragile code or black-box results, Endtest creates standard editable test steps that can be reviewed, modified, reused, and executed like any other Endtest test. This gives teams the speed of AI while preserving control, transparency, and maintainability.
Endtest is built for developers, QA teams, product managers, startup founders, and organizations that want reliable automated testing without maintaining a custom framework. It supports CI/CD integration, cross-browser testing, real devices and browsers, geolocation testing, API checks, database validation, file handling, email and SMS verification, detailed reports, and self-healing tests that reduce maintenance when application elements change.
With unlimited AI usage and unlimited test executions, Endtest helps teams adopt AI-powered testing at scale without tokens, credits, or usage-based limits. By combining agentic AI, low-code automation, broad testing coverage, cloud execution, and self-healing capabilities, Endtest helps teams ship more reliable software faster while keeping full control over the testing process.
JSFiddle
EndtestEndtest is recommended for QA teams who are transitioning from manual to automated testing, organizations that lack extensive coding expertise within their testing teams, and companies that need to automate tests across multiple platforms quickly and efficiently.
Also TestNinja, which is the next-generation codeless test automation for web apps.
Works as expected.
Based on our record, JSFiddle seems to be a lot more popular than Endtest. While we know about 203 links to JSFiddle, we've tracked only 2 mentions of Endtest. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.
Coding is like learning a new languageโyou 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 / about 1 year ago
> This specific example, https://jsfiddle.net, is not a monopoly and has many suitable replacements (e.g. https://livecodes.io/, https://liveweave.com). The other two don't even have sidebars... They are suitable replacements in the same way that crickets are a suitable replacement for beef โ It'll get the job done. But often the customer wants more, like the whole experience, and jsfiddle does have a... - Source: Hacker News / over 1 year ago
Open a code editor (or an online editor like CodePen or JSFiddle) and try this:. - Source: dev.to / over 1 year ago
Save your work to get a unique URL like https://jsfiddle.net/yourusername/yourfiddleID/. - Source: dev.to / over 1 year ago
Our Endtest platform is one of them. To help get your automated testing back on track, we'll help you migrate your old TestProject tests. We're also offering a 20% discount to TestProject users that start using Endtest before TestProject's EOL. - Source: dev.to / over 3 years ago
It's a bit easier to perform a file upload test with Endtest. - Source: dev.to / over 4 years ago
CodePen - A front end web development playground.
BrowserStack - BrowserStack is a software testing platform for developers to comprehensively test websites and mobile applications for quality.
CodeSandbox - Online playground for React
Sauce Labs - Test mobile or web apps instantly across 700+ browser/OS/device platform combinations - without infrastructure setup.
Pastebin.com - Pastebin.com is a website where you can store text for a certain period of time.
Ghost Inspector - Easily create automated browser tests for your websites and web apps. Ensure everything works and looks the way it should. No coding required. 14 day free trial!