
GitBook
Mintlify
Docusaurus
Archbee.io
Postman
Swagger UI
Slite
A collaborative developer hub for your API or code.

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, ReadMe seems to be more popular. It has been mentioned 28 times since March 2021.
Website, pricing, platforms and company facts side by side.
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|---|---|---|
| Website | readme.com | extendsclass.com |
| Pricing | — | |
| Company | — | 2022 |
| Listed in |
In their own words, as submitted to SaaSHub.


No description of ReadMe 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
ReadMe is recommended for tech companies, API developers, software development teams, product managers, and any organization that needs to create, maintain, and improve the usability of their API documentation. It is particularly beneficial for teams that prioritize collaborative documentation processes and wish to offer users a modern documentation interface.
No analysis of ExtendsClass SQL Online yet.
How often each product is chosen within a category, 0–100% relative to the other.


Share your experience with using ReadMe 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.


Readme.com is a developer hub that allows users to publish API documentation. It focuses on making API references interactive by allowing to Try out API calls, log metrics about the API call usage, and more. This...
ReadMe offers integration with apps like Slack, Google Analytics, and Zendesk. One of its most significant advantages is the metrics option which lets you see how customers are using your API.
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.


ReadMe specializes in creating stunning developer experiences. If your API’s success depends on attracting external developers, ReadMe’s polish and developer-centric features deserve consideration. - Source: dev.to / 11 months ago
In this comparison, we examine four leading platforms: Theneo's AI-first approach with complete developer portals, Redocly's spec-governance excellence, ReadMe's content-centric hubs, and Mintlify's beautiful Git-native design. We'll... - Source: dev.to / 9 months ago
ReadMe is fantastic for API documentation specifically. The interactive API explorer is genuinely impressive. But if you need more than API docs; tutorials, conceptual guides, getting started content, it starts to feel like you're... - Source: dev.to / 9 months ago
Tracking ExtendsClass SQL Online since Oct 2022.
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