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

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

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 | extendsclass.com | supabase.com |
| Pricing | — | |
| Company | 2022 | Startup from the United States |
| Listed in |
In their own words, as submitted to SaaSHub.


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


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


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


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


We have no reviews of ExtendsClass SQL Online yet. Be the first one to post
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.
Recommendations tracked on public social media and blogs since March 2021.


Tracking ExtendsClass SQL Online since Oct 2022.
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
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An online tool for testing, sharing and collaborating on SQL snippets
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Appwrite provides web and mobile developers with a set of easy-to-use and integrate REST APIs to manage their core backend needs.
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Free Online SQL Editor
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Vercel is the platform for frontend developers, providing the speed and reliability innovators need to create at the moment of inspiration.
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