SQL Studio.
Attach an extract of your database, or any spreadsheet, and get exactly the output you need. Choose what you want; SQL Studio writes the SQL and shows the result instantly.
Drop your CSV or Excel files here
An extract from your database, or any spreadsheet you want in a better shape. Add two files to join them.
Your files are read on this device. Nothing is uploaded or stored.
Build your output
Choose what you need. The SQL writes itself and the result updates instantly.
1Table and joinsStart from a table, optionally join anotherOn
2ColumnsPick, order and rename the columns you wantOn
3Calculated columnsTotals, ratios, year or month of a date, textOn
4Filter rowsKeep only the rows you needOn
5Group and summariseTotals, averages and counts by groupOn
6ReshapeRows to columns, or columns to rowsOn
7Sort and limitOrder, remove duplicates, top NOn
What you can do.
Six everyday jobs, each a couple of taps away. Mix them freely.
Choose and rename columns
Keep only what you need, in the order you want, with clear names.
Filter rows
Only London, only this year, only orders over £100: any rule you like.
Totals by group
Sum, average, count or find the highest and lowest, for every region, product or month.
Rows to columns
Pivot a long list into a tidy table, like one column per month.
Columns to rows
Turn a wide spreadsheet into a long list, ready for charts and databases.
Join two files
Match orders with customers, or sales with targets, on a shared column.
Why it's useful.
The output you need, in seconds
Pick columns, filters, totals and pivots from simple menus. No formulas and no database to set up.
Learn SQL as you go
Every choice writes clean, readable SQL you can copy into Snowflake, PostgreSQL, BigQuery or your own database.
Reshape anything
Turn rows into columns and back, join two files on a key, add calculated columns, and keep only the rows that matter.
See it in action.
A real example, from messy input to the output you need.
Your file
| date | region | product | units |
|---|---|---|---|
| 2026-01-04 | North | Espresso | 3 |
| 2026-01-09 | London | Croissant | 5 |
| 2026-02-02 | North | Croissant | 2 |
| 2026-02-11 | London | Espresso | 4 |
“Total units per region, with one column per month.” Recipe used: Rows → columns.
Your result
| region | 2026-01 | 2026-02 |
|---|---|---|
| London | 5 | 4 |
| North | 3 | 2 |
Private by design.
Your data never leaves your device. There is no server to send it to, no account and nothing to store it in.
- Nothing is uploadedFiles are opened by your own browser, on your own device. They never travel over the internet.
- Nothing is storedClose the tab and your data is gone. There is no database, no account and no copy kept anywhere.
- No tracking, no AINo analytics scripts, no cookies and no AI services see your data. The engines run locally.
- Safe for work filesBecause nothing leaves your device, you can use it with confidential spreadsheets and database extracts.
Better together.
Every tool can send its result straight to the others. Clean it, query it, then see it.