Dev tools · alternatives · 2026
24 alternatives to JavaFiddle – Compile, run and share Java code fully client side
JavaFiddle is a web-based development tool that lets users write, compile, and run Java code directly in their browser without needing to install anything locally. It's designed for developers who want to quickly test… Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. JavaFiddle – Compile, run and share Java code fully client side launched in 2023; newer entries below may have overtaken it.
- 1
Anyfiddle▲145Build, run and share code in any language from your browser
2021 · anyfiddle.com · its alternatives →
- 2
Hi! Jampack is a post-processing tool that takes the output of your Static Site Generator (aka SSG) and optimizes it for best user experience and best Core Web Vitals scores. As of today it can: - Optimize local images, CDN images or external images - Optimize above-the-fold vs below-the-fold - Limit images max width - Inline critical CSS - Prefetch links on scroll - Improve browser compatibility - Auto-fixes HTML issues - Warn for HTML accessibility issues - Compress all assets in the end It processes directly the static output so it's compatible with any SSG or framework. We are…
2024 · github.com · its alternatives →
- 3
- 4AW
Hey HN, I wanted to show you a product a small team and I have been working on for 4 years. https://jam.dev It’s called Jam and it prevents product managers (like I used to be) from being able to create vague and un-reproducible bug tickets (like I used to create). It’s actually really hard as a non-engineer to file useful bug tickets for engineers. Like, sometimes I thought I included a screenshot, but the important information the engineer needed was what was actually right outside the boundary of the screenshot I took. Or I'd write that something "didn't work" but the engineer…
2024 · its alternatives →
- 5
Java Bullshifier▲199A command line tool to generate massive random Java applications
2016 · takipi.github.io · its alternatives →
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Anyfiddle, the online code editor for everyone
2020 · anyfiddle.com · its alternatives →
- 7
Runabout▲90Instantly reproduce scenarios in your code
2023 · plugins.jetbrains.com · its alternatives →
- 8
- 9AI
2015 · jsblocks.com · its alternatives →
- 10
Test your C# code online with .NET Fiddle code editor.
2013 · dotnetfiddle.net · its alternatives →
- 11PP
2014 · pairjam.com · its alternatives →
- 12
2024 · reportmill.com · its alternatives →
- 13JL
Experimental educational programming environment. Learn Javascript and create your own dares!
2013 · jsdares.com · its alternatives →
- 14
myCompiler▲122Run your favourite programming languages online
2019 · mycompiler.io · its alternatives →
- 15CC
Chunk co-founder here. We spent the last 2 weeks building this to scratch our own itch: As developers, we often have problems that could be solved just by running a few lines of code. Sometimes, running this code on your local machine is fine. But other time, the code need to run automatically reacting to external events or to run continuously, which means, it needs to run on a server somewhere. So now, you have to find a cloud provider, to package or build the code and finally to deploy it. All of that for what could be literally be 4 lines of code. We couldn’t find an easier way to do…
2022 · chunk.run · its alternatives →
- 163L
2019 · reportmill.com · its alternatives →
- 17
Hi HN, I built a code generator plugin for IntelliJ that uses LLMs to create repetitive Java code like implementations, tests, and fixtures — based on custom natural-language patterns and annotation-based references. Most tools like Copilot or Cursor aim to be general, but fail to produce code that actually fits a project structure or passes tests. So I made something more explicit: define patterns + reference scope, and generate code consistently. In this demo, 400 lines of Java were generated in 20 seconds — and all tests passed: https://www.youtube.com/watch?v=ReBCXKOpW3M…
2025 · github.com · its alternatives →
- 18UJ
Leaning Technologies - We bring applications to the Web.
2017 · cheerpjdemos.leaningtech.com · its alternatives →
- 19CJ
2013 · filepicker.github.io · its alternatives →
- 20RU
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 →
- 21
JSPad▲64Collaborative code assessment platform for JavaScript devs
2021 · jspad.xyz · its alternatives →
- 22
Compile WebAssembly to JVM and other WASM tools. Contribute to cretz/asmble development by creating an account on GitHub.
2017 · github.com · its alternatives →
- 23
CodePile▲71A simple, free & rich collaborative code sharing experience
2020 · codepile.net · its alternatives →
- 24
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 →
Also compare
- Anyfiddle alternatives
- Jampack – Optimizes static websites as a post-processing step alternatives
- Jam alternatives
- A web debugger an ex-Cloudflare team has been working on for 4 years alternatives
- Java Bullshifier alternatives
- Anyfiddle-Write run and share code in any language/framework in browser 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 →