Life & fun · alternatives · 2026

jsFiddle++ is an online code editor designed for developers who want to test and share JavaScript, HTML, and CSS code snippets. It improves upon the original jsFiddle with enhanced features for writing and debugging… Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. jsFiddle++, a better jsFiddle launched in 2013; newer entries below may have overtaken it.

1. 1
   JSFiddle▲107

   Test and share JavaScript, CSS, HTML or CoffeeScript online.

   2014 · jsfiddle.net · its alternatives →

2. 2
   2D field of view demo▲333

   JSFiddle - Test your React, Tailwind, JavaScript, CSS, HTML online with JSFiddle.

   2016 · jsfiddle.net · its alternatives →

3. 3CC
   CSSFX – Click-to-copy CSS effects▲595

   2019 · cssfx.dev · its alternatives →

4. 4BJ
   Behave.js – Coding Behaviors for textarea elements▲180

   2013 · jakiestfu.github.com · its alternatives →

5. 5
   Editor.js▲723

   A block-styled editor with clean JSON output

   2019 · editorjs.io · its alternatives →

6. 6
   CodeSwing – A CodePen-like interactive playground, built into VS Code▲159

   VS Code extension for building web applications ("swings") using a interactive and editor-integrated coding environment - lostintangent/codeswing

   2020 · github.com · its alternatives →

7. 7
   I made CSS Pro, a re-imagined Devtools for web design▲505

   Try your design ideas in seconds with a universal visual CSS editor that generates code for you. Say hello to speed, joy, and stunning designs in just a few clicks with CSS Pro

   2023 · csspro.com · its alternatives →

8. 8
   Jotted – jsfiddle for self-hosted client-side demos▲47

   Environment for showcasing HTML, CSS and JavaScript, with editable source. - ghinda/jotted

   2016 · github.com · its alternatives →

9. 9KJ
   Kerning.js — Take control of your web typography▲154

   2011 · endtwist.github.com · its alternatives →

10. 10
    CSSeffectsSnippets.▲292

    A collection of CSS effects with a click to copy.

    2019 · emilkowalski.github.io · its alternatives →

11. 11
    CodeSandbox▲292

    The online code editor for web development

    2018 · codesandbox.io · its alternatives →

12. 12
    An open-source, collaborative, WYSIWYG Markdown editor▲460

    Inspired by the design and UI/UX of apps like Notion, and utility of open-source apps like StackEdit, I decided to create a minimalistic, local-only WYSIWYG Markdown editor. Some features worth highlighting: - Monaco editor and Prettier integration for code snippets - Tables (apparently the holy grail of WYSIWYG editing) - Embeds (for CodePen, CodeSandbox and YouTube, most useful for HTML or JSON exports) - Accepts Markdown paste-in, and "exports"/generates HTML, Markdown and JSON outputs - Collaboration (with real-time awareness and initial commenting system, available only when…

    2023 · editor.vrite.io · its alternatives →

13. 13
    CSS Grab n' Go Editor▲213

    Visual editor for learning and quick CSS mocking

    2020 · cssbuilder.veliovgroup.com · its alternatives →

14. 14
    CODECAST▲254

    HTML & CSS editor in your browser with real-time previews

    2015 · codecast.me · its alternatives →

15. 15
    Blotter.js▲243

    A JavaScript API for unconventional text effects on the web.

    2018 · blotter.js.org · its alternatives →

16. 16
    CodePen▲109

    HTML, CSS, and JavaScript editor in the browser.

    2014 · codepen.io · its alternatives →

17. 17WA
    WideArea – an expandable textarea▲192

    Create expandable textarea and write large amount of text easily

    2013 · usablica.github.io · its alternatives →

18. 18SJ
    Scratch.js – Interactive JavaScript Scratchpad▲169

    2020 · hole.dev · its alternatives →

19. 19AC
    A curated list of Chrome DevTools tips and tricks▲212

    Practical guides to browser DevTools and AI-assisted debugging — Chrome, Firefox, Safari and Edge. Panels, shortcuts, performance traces and accessibility.

    2014 · devtoolstips.com · its alternatives →

20. 20
    JavaScript-first, open-source WYSIWYG DOCX editor▲130

    We needed a JS-first WYSIWYG DOCX editor and couldn't find a solid OSS option, most were either commercial or abandoned. As an experiment, we gave Claude Code the OOXML spec, a concrete editor architecture, and a Playwright-based test suite. The agent iterated in a (Ralph) loop over a few nights and produced a working editor from scratch. Core text editing works today. Tables and images are functional but still incomplete. MIT licensed.

    Feb 2026 · github.com · its alternatives →

21. 21
    Code editor by Flawwwless▲89

    An online Javascript code editor 🤖

    2019 · its alternatives →

22. 22PJ
    Phantom JS interactive editor▲120

    2014 · phantomjs-pad.ozaur.com · its alternatives →

23. 23
    Code Box▲78

    A desktop app, inspired by CodePen and JSFiddle

    2021 · virejdasani.github.io · its alternatives →

24. 24
    Matchstick▲109

    Visually compare your code and designs.

    2020 · matchstick.xyz · its alternatives →

Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →