Dev tools · alternatives · 2026
24 alternatives to RunJS
Write and run JavaScript instantly 🚀
Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. RunJS launched in 2019; newer entries below may have overtaken it.
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Interactive javascript development environment
2025 · surajadsul.github.io · its alternatives →
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Bun▲295A fast JS runtime Node.js replacement with built‑in tools
Dec 2025 · bun.com · its alternatives →
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Write, run, and test JavaScript snippets & JSON offline
Aug 2026 · chromewebstore.google.com · its alternatives →
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Rough.js is a light weight javascript library that lets you draw graphics with a hand-drawn, sketchy, appearance.
2018 · roughjs.com · its alternatives →
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DisplayJS▲210A simple JavaScript framework for building ambitious UIs 😊
2017 · display.js.org · its alternatives →
- 8GN
2016 · graphicsjs.org · its alternatives →
- 9MA
Run, compare, and share JavaScript benchmarks in your browser with BenchJS.
2024 · benchjs.com · its alternatives →
- 10SU
2022 · npmjs.com · its alternatives →
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This TypeScript package allows you to safely execute JavaScript code within a WebAssembly sandbox using the QuickJS engine. Perfect for isolating and running untrusted code securely, it leverages the lightweight and fast QuickJS engine compiled to WebAssembly, providing a robust environment for code execution. Features - *Security*: Run untrusted JavaScript code in a safe, isolated environment. - *File System*: Can mount a virtual file system - *Custom Node Modules*: Custom node modules are mountable - *Fetch Client*: Can provide a fetch client to make http(s) calls - *Test-Runner*: Includes…
2024 · github.com · its alternatives →
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CustomJSâ–²143Hello, as an Indie Hacker, I have built and successfully launched this SaaS software. Originally it was a plugin for Make.com but now it can also be used for many other user cases. It's a niche market but many users are enjoying it. Feel free to give me more feedback https://www.customjs.space
2024 · customjs.space · its alternatives →
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faster.js is a Babel plugin that compiles idiomatic Javascript to faster, micro-optimized Javascript. - vzhou842/faster.js
2018 · github.com · its alternatives →
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TryJS▲3Write & run JS/TS in your browser — instantly, for free
Feb 2026 · tryjs.app · its alternatives →
- 15CJ
2013 · filepicker.github.io · its alternatives →
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I needed a way to let users write JavaScript to create plugins for a site I'm building. I couldn't find a solution I was happy with, so ended up building one that run's it in a web worker on a separate domain from your main site. Hopefully I haven't missed anything. If so, please let me know! My website has an interactive demo you can write code in the browser textarea, and see the output on the right. Interactive Demo: https://workerbox.net/ Github: https://github.com/markwylde/workerbox
2022 · workerbox.net · its alternatives →
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Run JavaScript instantly in your browser - no setup needed
Feb 2026 · online-js-compiler.vercel.app · its alternatives →
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Runnoâ–²148Make embeddable code snippets that run in the browser
2021 · runno.dev · its alternatives →
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Run Javascript programs on pieces of paper, using a projector and camera. Physically hold programs in your hand, and see them come to life, as if by magic.
2018 · paperprograms.org · its alternatives →
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My favorite JS/TS job processing framework. Maybe yours too? [ARCHIVED] - eropple/taskbotjs
2018 · github.com · its alternatives →
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The better runtime for Next.js
2022 · netlify.com · its alternatives →
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Connect to remote browser sessions and debug your JavaScript applications.
2019 · remotejs.com · its alternatives →
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Task runner that helps you easily manage and invoke small scripts and wrappers - TekWizely/run
2019 · github.com · its alternatives →
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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 →