New Blank Spreadsheet
Start typing in A1, press + New Sheet in the bottom tab bar to create additional tabs, or use Paste Data to load CSV, TSV, Markdown, or JSON right away.
Drop XLSX, CSV, TSV, Markdown (.md), or JSON here
Runs locally inside browser memory. Multi-sheet workbooks open into tabs automatically.
Combine Two or More Columns
Merge 2+ columns cleanly without writing formulas.
Split Column by Delimiter
Remove Duplicate Rows
Find & Replace
Sort Rows
Filter or Delete Matching Rows
Fill, Prefix / Suffix & Extract Column
Merge Multiple Files / VLOOKUP Join Sheets
Append rows from multiple files/tabs or join two sheets by a key column.
Option A: Stack / Append All Open Sheet Tabs
Option B: VLOOKUP / Left-Join Two Sheets by Key
Format Preview & Export Converter
Column Profiler & Quick Summary
| Col | Header | Filled | Blank | Unique | Dupes | Min / Max / Avg |
|---|
Paste CSV, TSV, Markdown Table, JSON, or HTML
Confirm Action
Multi-Sheet Tabs
Click + New Sheet at the bottom to add `Sheet2`, `Sheet3`, and beyond. Double-click any tab name to rename it (up to 31 characters), click `⧉` to duplicate, or `×` to remove a tab.
Keyboard Shortcuts
Use Arrow keys and `Tab` to move cells, press `F2` or double-click to edit, `Ctrl+C` / `Ctrl+V` to copy/paste Excel or Markdown tables, `Ctrl+F` to Find & Replace, and `Ctrl+Z` / `Ctrl+Y` to Undo/Redo.
Supported Formulas
Run `=SUM()`, `=AVERAGE()`, `=MEDIAN()`, `=COUNT()`, `=TEXTJOIN()`, `=CONCAT()`, `=TRIM()`, `=UPPER()`, `=IF()`, and arithmetic like `=(A2+B2)*1.08` across cells.
