KRHTech Online SQL Editor
Write SQL. Run it in your browser.
A temporary SQLite database for creating tables, inserting sample records, testing queries and inspecting results — with no connection to a production database.
Output
Ready for a query
Load the example or write your own SQL statement, then press Run.
Tip: press Ctrl/Cmd + Enter in the editor to run the current SQL without reaching for the button.
What this workspace gives you.
One database, three things you'll actually use it for.
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Create tables
Build temporary SQLite tables and define columns for testing — the schema panel on the left updates as soon as you run a statement.
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Run SQL queries
Test SELECT, WHERE, JOIN, GROUP BY, ORDER BY and other SQLite statements against real data, not a mock.
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Inspect results
View returned rows in a readable table immediately after execution, alongside a live preview of every table in the database.
Free online SQL editor.
An online SQL editor gives developers and learners a quick environment for writing and testing database queries. KRHTech uses SQLite in the browser via WebAssembly, so the workspace doesn't require a database server or an account.
Temporary browser database.
This tool is a testing playground, not a connection to MySQL, PostgreSQL or a production database. Avoid passwords, credentials, API keys and confidential data — the database lives only in this tab and disappears when you close it.
Questions about this tool.
For anything else, see the site-wide FAQ or get in touch.
Can I run SQL online?
Yes. The SQL playground runs real SQLite queries directly in your browser using WebAssembly — no install, no account.
Does it connect to my database?
No. It creates a temporary SQLite database in the browser tab. Nothing here reaches MySQL, PostgreSQL or any production database.
Can I create tables and insert data?
Yes. You can run CREATE TABLE, INSERT, UPDATE, DELETE and SELECT statements, and the schema and table preview panels update automatically after each run.
More on the bench.
Six other tools, same rule: free, no signup, one job each.