Excel / Data

Spreadsheet and data manipulation tools

All tools run entirely in your browser — no file uploads, 100% private.

Online Spreadsheet

Popular

Excel-like grid editor in your browser

CSV Viewer

View and explore CSV files as a table

CSV to Excel

Convert CSV files to Excel spreadsheets

Excel to CSV

Convert Excel files to CSV format

JSON Formatter

Popular

Format, validate and beautify JSON data

Remove Duplicates

Clean duplicate rows from your data

Table Generator

Generate HTML or Markdown tables visually

7 Data tools · All free · No sign-up required