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

PouchDB
RxDB
GUN
Thymer
Yjs
FeathersJS
Git Large File Storage
A JSON-like data structure (a CRDT) that can be modified concurrently by different users, and merged again automatically.

Which is more popular?
Based on our record, StackBlitz should be more popular than Automerge. 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 | automerge.org |
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What each product offers, as listed by its team.


Possible disadvantages
Possible disadvantages
Walkthroughs and reviews on video.
StackBlitz - Online Code Editor For Angular and React - Introduction
More videos
Automerge: a new foundation for collaboration software
More videos
How often each product is chosen within a category, 0–100% relative to the other.


Share your experience with using StackBlitz and Automerge. 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 Automerge 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 / 7 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 / 10 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 / 10 months ago
This is apparently based on Automerge.[1] It sounds like a really good idea. Is it a good enough idea to sync MMO game clients and servers? Paper from 2012, last Automerge site update in 2025. Why isn't this everywhere? [1]... - Source: Hacker News / about 2 months ago
Automerge (official) - Automerge project goals, JSON-like CRDT semantics, and cross-platform bindings. (automerge.org). - Source: dev.to / 3 months ago
For values that don't have a natural merge function (or where you don't want to bother writing one), would it make sense to sync update logs instead? That is: - The synced value is a history of client updates, sorted in some eventually... - Source: Hacker News / 4 months ago
When comparing StackBlitz and Automerge, you can also consider the following products.


Open-source JavaScript database inspired by Apache CouchDB that's designed to run well within the browser
Compare PouchDB to StackBlitz or Automerge:

Code, create, andlearn together. Use our free, collaborative, in-browser IDE to code in 50+ languages — without spending a second on setup.
Compare replit to StackBlitz or Automerge:

A fast, offline-first, reactive Database for JavaScript Applications
Compare RxDB to StackBlitz or Automerge:

