
Firebase
AppWrite
Vercel
Next.js
PocketBase.io
Railway
Hasura
An open source Firebase alternative

SQL Fiddle
DB Fiddle
Online SQL Editor
Rextester
Online SQL playground for testing and sharing SQL snippets. SQLite, MySQL and PostgreSQL.

Which is more popular?
Based on our record, Supabase seems to be more popular. It has been mentioned 557 times since March 2021.
Website, pricing, platforms and company facts side by side.
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|---|---|---|
| Website | supabase.com | extendsclass.com |
| Pricing | — | |
| Company | Startup from the United States | 2022 |
| Listed in |
In their own words, as submitted to SaaSHub.


No description of Supabase yet.
It is a SQL playground which allows to test SQL online. Run SQL queries for SQLite, MySQL and PostgreSQL databases. Share snippets.
What each product offers, as listed by its team.


Possible disadvantages
No features have been listed yet.
An editorial look at what each product does well and who it suits.


Overall verdict
Why this product is good
Recommended for
No analysis of ExtendsClass SQL Online yet.
Walkthroughs and reviews on video.
Basic demo
More videos
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How often each product is chosen within a category, 0–100% relative to the other.


Share your experience with using Supabase and ExtendsClass SQL Online. For example, how are they different and which one is better?
External articles and on-site reviews we used to compare the two products.


Supabase combines PostgreSQL with authentication, storage, realtime functionality, and other backend services, making it a great fit for teams looking for an all-in-one platform. Teams with specialized PostgreSQL...
Supabase offers an open-source PostgreSQL backend that is tailored for developers with simplicity and scalability requirements. Its fully managed infrastructure aligned with integrated APIs makes it an excellent...
Supabase: An open-source BaaS alternative to Firebase, offering instant Postgres APIs, auth, edge functions, and growing AI-ready tooling. Ideal for modern dev teams but limited in orchestration and multi-agent flows.
We have no reviews of ExtendsClass SQL Online yet. Be the first one to post
Recommendations tracked on public social media and blogs since March 2021.


Navigate to supabase.com and select Start your project. - Source: dev.to / 18 days ago
A free Supabase account (a hosted PostgreSQL database). - Source: dev.to / 19 days ago
Provision managed resources (Postgres, MongoDB, Kafka, RabbitMQ, etc.) from DigitalOcean, Supabase, Scaleway, AWS, or Google Cloud. It doesn't really matter which; they all offer good SLAs. - Source: dev.to / 30 days ago
Tracking ExtendsClass SQL Online since Oct 2022.
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Free Online SQL Editor
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