Dev tools · alternatives · 2026
24 alternatives to Wallaby
JS test runner in your code editor
Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Wallaby launched in 2016; newer entries below may have overtaken it.
- 1
Bun▲295A fast JS runtime Node.js replacement with built‑in tools
Dec 2025 · bun.com · its alternatives →
- 2
- 3NJ
Hey HN, I'm Sindre, CTO of Scrimba (YC S20). We originally launched Scrimba to make video learning more interactive for aspiring frontend developers. So instead of passively watching videos, you can jump in an experiment with the code directly inside the video player. Since launch, almost two million people have used Scrimba to grow their skills. However, one limitation is that we've only supported frontend code, as our interactive videos run in the browser, whereas most of our learners want to go fullstack—building APIs, handling auth, working with databases, and so forth. To fix this, we…
2025 · its alternatives →
- 4
VS Code extension for building web applications ("swings") using a interactive and editor-integrated coding environment - lostintangent/codeswing
2020 · github.com · its alternatives →
- 5TR
2019 · tailwind.run · its alternatives →
- 6
- 7
Task runner that helps you easily manage and invoke small scripts and wrappers - TekWizely/run
2019 · github.com · its alternatives →
- 8
YepCode▲157Hey HN, We’re excited to introduce YepCode Run, a serverless runtime and SDK for executing code in secure sandboxes. Built on top of YepCode (https://yepcode.io), it allows you to execute code without any setup or installation. Perfect for: * Running AI-generated code – Securely in a sandbox environment, enabling fully autonomous AI agents. * Package Exploration – Try npm or PyPI packages without installing them locally. * Code Sharing – Easily share runnable code examples with others. * Quick Prototyping – Test snippets and algorithms on the fly. Just write or paste your code, and…
2022 · yepcode.io · its alternatives →
- 9
A chrome extension for running selected text in CodePen
2020 · chromewebstore.google.com · its alternatives →
- 10
- 11CJ
2013 · filepicker.github.io · its alternatives →
- 12
- 13
JavaScript console.log output and errors next to your code
2022 · console-ninja.com · its alternatives →
- 14
- 15
- 16
- 17
Dynamically instrument Live applications from your IDE
2023 · lightrun.com · its alternatives →
- 18
Free developer tools that run entirely in your browser
Mar 2026 · codetools.run · its alternatives →
- 19
interactive test runner for rust projects. Contribute to onur-ozkan/cargo-qtest development by creating an account on GitHub.
2023 · github.com · its alternatives →
- 20
My wife and I recently submitted to a mobile game jam on Newgrounds (yes, it's still around). What started as a question of whether we could do it somehow morphed into whether we could do without so many of the seemingly needless complications rampant in our respective industries. My wife thus did all the art as traditional frame-by-frame animation (no puppets or tweening) and I preceded without a game engine. I did use a pre-processor that gives JS a Lisp syntax (Parenscript), because C-syntax is gross. We hope the end result, while definitely of small scope, will serve to inspire some…
2022 · github.com · its alternatives →
- 21
- 22
Lightrun Launches first in the market Autonomous AI Debugger
2024 · lightrun.com · its alternatives →
- 23
Code runner extension for VS Code
2021 · marketplace.visualstudio.com · its alternatives →
- 24
Also compare
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 →