
CodeSandbox
replit
CodePen
GitHub Codespaces
Glitch
JSFiddle
vscode.dev
Online VS Code Editor for Angular and React

DevToys
CyberChef
IT Tools
Hoppscotch
AllDevToolsHub
API Fortress
Beeceptor
300+ free browser-based developer utilities and engineering courses with zero-server tracking and 100% client-side privacy.

Which is more popular?
Based on our record, StackBlitz seems to be more popular. It has been mentioned 112 times since March 2021.
Website, pricing, platforms and company facts side by side.
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| Website | stackblitz.com | cruxdev.tech |
| Pricing | ||
| Company | — | Startup from India · 1 - 9 employees |
| Listed in |
In their own words, as submitted to SaaSHub.


No description of StackBlitz yet.
CruxDev is an all-in-one developer toolbox and technical learning platform featuring over 300+ browser-based utilities and 70 engineering courses. Key Highlights: Zero-Server Privacy: 100% client-side execution. Your confidential code, JSON payloads, API tokens, JWTs, and keys never leave your...
What each product offers, as listed by its team.


Possible disadvantages
Walkthroughs and reviews on video.
StackBlitz - Online Code Editor For Angular and React - Introduction
More videos
No CruxDev.tech videos yet. You could help us improve this page by suggesting one.
How often each product is chosen within a category, 0–100% relative to the other.


As answered by people managing StackBlitz and CruxDev.tech.
CruxDev.tech's answer:
CruxDev combines over 300+ essential developer utilities with a comprehensive 70-course engineering academy in a single unified workbench. Crucially, it operates on a strict zero-server privacy architecture: all transformations, cryptography, formatting, and file processing happen 100% locally inside the user's browser using Web APIs and WebAssembly. Sensitive code snippets, JSON payloads, and API tokens never leave the device.
CruxDev.tech's answer:
Most developer utility websites are fragmented, ad-heavy, or silently transmit sensitive payloads to remote backend servers. Desktop alternatives require heavy downloads and platform-specific installations. CruxDev delivers an instant, lightweight web and offline PWA experience across any operating system with zero sign-ups, guaranteed data isolation, and modern features like LLM token cost modeling that legacy toolkits lack.
CruxDev.tech's answer:
The primary audience consists of software engineers, full-stack developers, DevOps engineers, cloud architects, cybersecurity analysts, and technical students. It is especially suited for developers handling confidential payloads, API secrets, database schemas, and cryptographic keys who require reliable utilities that adhere to strict zero-trust privacy standards.
CruxDev.tech's answer:
CruxDev was created out of the frustration of constantly juggling dozens of scattered single-purpose utility websites for daily programming tasks—formatting JSON on one site, decoding JWTs on another, generating hashes on a third—and worrying whether those servers were logging company data. It was engineered from the ground up as a fast, all-in-one developer companion where all processing remains strictly client-side.
CruxDev.tech's answer:
React, TypeScript, Vite, Tailwind CSS, Web Cryptography API, WebAssembly (Wasm), Canvas APIs, and Cloudflare Pages edge hosting.
CruxDev.tech's answer:
Share your experience with using StackBlitz and CruxDev.tech. For example, how are they different and which one is better?
External articles and on-site reviews we used to compare the two products.


All applications created on StackBlitz also get deployed automatically on their servers! So, this Angular toy app I just created is hosted automatically on https://angular-yvyi2j.stackblitz.io/. Most likely, the URL...
I've started using this as my main IDE for new projects when I'm trying things out. If it keeps getting better at the rate it has been, it'll be even better than coding locally.
StackBlitz claims to allow you to code the future in your browser. And after trying it, I’m confident you’ll agree that this web application is extremely useful for coders.
We have no reviews of CruxDev.tech yet. Be the first one to post
Recommendations tracked on public social media and blogs since March 2021.


Managing reactive state and dependent computations in JavaScript can get complex, especially when combining asynchronous and synchronous data. RS-X is a library that allows you to bind expressions to plain objects and makes the parts of... - Source: Hacker News / 8 months ago
I like htmx, LiveView, React and Solid. They are great at different points, so I try to combine them in Solv (Stateless Offline-capable LiveView) and write a prototype to show the benefits. Solv's main idea is that stateless servers keep... - Source: Hacker News / 11 months ago
I like htmx, LiveView, React and Solid. They are great at different points, and this is a prototype trying to combine them. Solv's main idea is that stateless servers keep client's state in a volatile cache. It enables server components... - Source: Hacker News / 11 months ago
Tracking CruxDev.tech since Sep 2026.
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