
db<>fiddle
DB Fiddle
SQLBolt
ExtendsClass SQL Online
Online SQL Editor
FastTools SQLite Playground
Ghostbin
A tool for easy online testing and sharing of database problems and their solutions.

Mem0
Memori
Agentmemory
Supermemory
Tempreon
cognee
TheSecondBrain.dev
Portable, verifiable memory for AI agents — works across ChatGPT, Claude, Gemini and any MCP client

Which is more popular?
Based on our record, SQL Fiddle seems to be more popular. It has been mentioned 60 times since March 2021.
Website, pricing, platforms and company facts side by side.
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| Website | sqlfiddle.com | chainmemory.ai |
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In their own words, as submitted to SaaSHub.


No description of SQL Fiddle yet.
ChainMemory gives your AI agents persistent memory that belongs to YOU — not to a single vendor. Save a memory in ChatGPT, recall it in Claude or Gemini. Available via Chrome extension, MCP server (npm), or REST API. Every memory gets a cryptographic fingerprint and project states are anchored...
What each product offers, as listed by its team.


Possible disadvantages
An editorial look at what each product does well and who it suits.


No analysis of SQL Fiddle yet.
Overall verdict
Why this product is good
Recommended for
How often each product is chosen within a category, 0–100% relative to the other.


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


SQL Fiddle is also one of the best online database tools for testing your databases and sharing the problems and the solutions. You can test and compare your SQL queries against different database engines, including...
We have no reviews of ChainMemory yet. Be the first one to post
Recommendations tracked on public social media and blogs since March 2021.


Tools like db<>fiddle and SQL Fiddle allow you to write and test queries in a live environment without needing a local database setup. You can share your SQL examples with others by providing them with a unique link to your query. - Source: dev.to / over 1 year ago
You can play for free (slow but workable) right here: Http://sqlfiddle.com/. Source: almost 3 years ago
I'm trying to get from a table which primary key aren't in the table, I use SQL Fiddle which runs MySql 5.6. Source: almost 3 years ago
Tracking ChainMemory since Jul 2026.
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An online tool for testing, demonstrating and sharing database commands and scripts.
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An online tool for testing, sharing and collaborating on SQL snippets
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Persistent memory from agent trace, not just conversation
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SQLBolt provides a set of interactive lessons and exercises to help you learn SQL
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Persistent memory for Claude Code, Codex & coding agents
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