Life & fun · alternatives · 2026
24 alternatives to QEDServer: A standalone playground for JS and AJAX
QEDServer is a standalone playground designed to help developers test client-side JavaScript and AJAX libraries without building a backend. It eliminates the need to write server code, set up databases, or deploy… Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. QEDServer: A standalone playground for JS and AJAX launched in 2011; newer entries below may have overtaken it.
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I originally built a QR code generator as a resume project using Rust and I realized a web interface would make customization way easier. This still generates the "data" using that rust library via wasm, but the rendering is all editable javascript to make an SVG or paint on an HTML canvas. I was especially inspired by https://qrbtf.com which had some unique style options I had never seen before, which I ended up copying, and then I made some more.
2024 · github.com · its alternatives →
- 2
I recently dug up an old project in an attempt to improve on it. It's a code sandbox for playing around with HTMX in the browser, that runs a mock server within the sandbox iframe. The server "framework" is loosely based on Django, so if you're familiar with Django, you'll immediately understand what's going on. I recommend clicking through the examples. Github repo: https://github.com/lassebomh/htmx-playground Probably my favorite part is the lack of HTMX specific code. It's designed to mimic the client and server, but really nothing else. In principle, this means that…
2024 · lassebomh.github.io · its alternatives →
- 3
Q.js has a lot of helpful Javascript functions, and works well with other libraries such as jQuery. - EGreg/Q.js
2013 · github.com · its alternatives →
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A private, browser-only ClojureScript playground powered by the self-hosted compiler.
2016 · cljsfiddle.com · its alternatives →
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Serverless batch computing made simple
2019 · faastjs.org · its alternatives →
- 6AP
2015 · fatiherikli.github.io · its alternatives →
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:umbrella: Lightweight javascript library for DOM manipulation and events
2018 · umbrellajs.com · its alternatives →
- 8
We're excited to announce Lowdefy V4, a full-stack web framework built on top of Next.js that simplifies building web applications, internal tools, admin panels, BI dashboards, and CRUD apps using YAML or JSON configuration files. New in V4: Next.js: Lowdefy now runs on top of the Next.js framework. All of Auth.js: App auth is now handled by Auth.js supported providers, adapters and callbacks and events, easy to configure, but all of which can be customized. Plugin extensibility: Apps can now be extended with any npm or pnpm workspace plugins. Our story: We have developed a simple…
2021 · lowdefy.com · its alternatives →
- 9
1kB-ish JavaScript framework for building hypertext applications - hyperapp/hyperapp
2017 · github.com · its alternatives →
- 10
MCP Playground▲160MCP Playground is a Postman-style tool for MCP — inspect servers, execute tools live, test your client, all from the browser. Four things in one place: 1. Free hosted MCP servers — four public test servers anyone can point their client at: Echo (connectivity), Auth (Bearer token flow), Error (error handling), Complex (multi-tool schemas).No sign-up, just use the URL. 2. Server inspector — paste any remote MCP server URL, see all its tools/resources/prompts, execute them live, inspect the full JSON-RPC log. HTTP, SSE, and WebSocket all supported. 3. Registry — 10,000+ servers…
Nov 2025 · mcpplayground.io · its alternatives →
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2013 · minifiedjs.com · its alternatives →
- 12
- 13PJ
2014 · phantomjs-pad.ozaur.com · its alternatives →
- 14
Create and deploy serverless cloud functions instantly, all from the browser.
2021 · napkin.io · its alternatives →
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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 →
- 16
Quokka▲93Rapid prototyping playground for JavaScript in your editor
2017 · quokkajs.com · its alternatives →
- 17BI
2022 · blueboat.io · its alternatives →
- 18
Interactive javascript development environment
2025 · surajadsul.github.io · its alternatives →
- 19
A simple language server for JavaScript, powered by ESLint and Tern. - tbodt/js-langserver
2018 · github.com · its alternatives →
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- 21AT
2019 · blog.hediet.de · its alternatives →
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Q.js is a lightweight JS framework that I recently distilled from our in-house Qbix platform that I’ve been building since 2011. It powers many of our social apps, which have all the features of Facebook, LinkedIn, X, etc. We’re not a big company like Google or Meta, so we never released it publicly. Now I’d like to, and thought it would be a good idea to post it on HN and gather some feedback. Q.minimal.js was designed to be dropped into any website. It lazy-loads all your components only as they are needed and appear on the screen. The minimal file is meant as a starting point for…
2025 · github.com · its alternatives →
- 24
Also compare
- qrframe – generate beautiful qr codes with javascript code alternatives
- I made a HTMX Playground 100% in the browser alternatives
- Introducing Q.js, a library for modern web apps alternatives
- CLJS Fiddle – ClojureScript alternatives
- Faast.js – Serverless Batch Computing Made Simple alternatives
- A playground for in-browser interpreters 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 →