Dev tools · alternatives · 2026
24 alternatives to .Net core on .Net Fiddle
Try .net core directly on the browser
Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. .Net core on .Net Fiddle launched in 2019; newer entries below may have overtaken it.
- 1

Hi HN community, I’m Zach, founder and CEO of Warp, and am excited to show you Warp, a fast Rust-based terminal that’s easy to use and built for teams. As of today, Warp is in public beta and any Mac user can download it. It works with bash, zsh, and fish. The terminal’s teletype-like interface has made it hard for the CLI to thrive. After 20 years of programming, I still find it hard to copy a command’s output; I always forget how to use `tar`; and I always have to relearn how to move my cursor. To fix fundamental accessibility issues, I believe we need to start innovating on the terminal,…
2022 · warp.dev · its alternatives →
- 2

Test your C# code online with .NET Fiddle code editor.
2013 · dotnetfiddle.net · its alternatives →
- 3
Electron.NET▲84Build cross platform desktop apps with .NET Core
2017 · github.com · its alternatives →
- 4
NetcoreSaas▲208Simple but powerful 💪 codebase for your next SaaS
2020 · netcoresaas.com · its alternatives →
- 5

Fast, personalized web experiences from the network edge.
2020 · netlify.com · its alternatives →
- 6NC
As .NET Core (dotnet core) is slowly gaining traction under startups and larger entities I decided to build a plugin for the well-known hosting control panel cPanel (or WHM). My personal belief is that .NET Core is a great investment for companies, and I want to help out the ecosystem by providing an easy way for companies to host their .net core applications without having to do all the plumbing themselves. NexusCore is targetted at (shared) webhosting companies, developers, enthusiasts and other people who love .net core. This plugin (NexusCore) allows you to set up .NET Core hosting…
2018 · its alternatives →
- 7

There is now an official Docker image from Microsoft that can run .NET Core applications on your Raspberry Pi. Let's find out how in this hands-on guide.
2017 · blog.alexellis.io · its alternatives →
- 8

Offline-first SQL sync with Typescript and Rust cores - syncular/syncular
Aug 2026 · github.com · its alternatives →
- 9
Electron Fiddle▲247Create, run, package, and share experiments with Electron.
2018 · medium.com · its alternatives →
- 10IH
2013 · sintaxi.com · its alternatives →
- 11CC
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 →
- 12

Build Cross Platform HTML Desktop Apps on .NET using native GUI, HTML5, JavaScript, CSS, Owin, AspNetCore (MVC, RazorPages, Blazor) - chromelyapps/Chromely
2018 · github.com · its alternatives →
- 13

Inspired by Compiler Explorer and other playground/fiddle websites like jsfiddle, db-fiddle, Go playground, and Rust playground, I thought it would be cool to have a playground for nearly any program so I've been working on Program Explorer: a playground for running programs from containers. I am inspired by these playgrounds because they are great educational tools for quickly experimenting and as communication tools by sharing shortlinks that reproduce bugs for instance. I would love for every open source project that publishes a container to get their own playground for free. I'm…
2025 · programexplorer.org · its alternatives →
- 14
Keystone▲125We kept hitting the same wall: you clone some arbitrary repo and just want it to run without any configuration work. So we built Keystone, an open source tool that spins up a Modal sandbox, runs Claude Code inside it, and produces a working .devcontainer/ config (Dockerfile, devcontainer.json, test runner) for any git repo. We build on the dev container standard, so the output works with VS Code and GitHub Codespaces out of the box. Main use cases: reproducible dev/CI environments, self-describing repos, and safely sandboxed coding agents. Our goal is to encourage all repos to…
Mar 2026 · github.com · its alternatives →
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- 17

A private, browser-only ClojureScript playground powered by the self-hosted compiler.
2016 · cljsfiddle.com · its alternatives →
- 18

Hi HN - We've been working on Coasts (“containerized hosts”) to make it so you can run multiple localhost instances, and multiple docker-compose runtimes, across git worktrees on the same computer. Here’s a demo: https://www.youtube.com/watch?v=yRiySdGQZZA. There are also videos in our docs that give a good conceptual overview: https://coasts.dev/docs/learn-coasts-videos. Agents can make code changes in different worktrees in isolation, but it's hard for them to test their changes without multiple localhost runtimes that are isolated and scoped to those…
Mar 2026 · github.com · its alternatives →
- 19CP
2014 · vickychijwani.github.io · its alternatives →
- 20

I wrote this tool during an internship at Narf Industries in 2023. It's a REPL that allows for quickly developing, testing, and fuzzing for HTTP request smuggling attack payloads. I started the internship having never worked with web servers, and have now found over 100 HTTP implementation bugs. I attribute this mostly to the ease of experimentation in the Garden. REPL-oriented fuzzing is just a really good interface for finding parsing bugs. It's pretty neat to able to run a differential fuzzer, categorize and display all the discovered discrepancies, then let a human pick through them and…
2024 · github.com · its alternatives →
- 21

TL;DR: dagger.js is a buildless, runtime-only micro-framework that plays nicely with native Web Components. It uses HTML-first directives (e.g. +click, +load) so you can ship a page by dropping a single from a CDN—no bundlers, no compile step. Why I built it Modern stacks are powerful but often heavy: bundlers, compile steps, framework DSLs, local CLIs. For internal tools, small apps, and edge/serverless deployments, I wanted something you can view-source, paste into a page, and ship. What it is: Runtime-only: no build or VDOM compile; hydrate behaviors directly on HTML. HTML…
2025 · daggerjs.org · its alternatives →
- 22

A cross platform build and deployment automation system for building projects and executing deployment scripts using C# code. - dotnetcore/FlubuCore
2018 · github.com · its alternatives →
- 23XF
2020 · masa331.github.io · its alternatives →
- 24

JSFiddle but with Docker and .NET Core. Contribute to DaniJG/DockNetFiddle development by creating an account on GitHub.
2017 · github.com · its alternatives →
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