BUILDJUNIOR

Build a CSV Transformer

45 minutes

0 completed

reactcsvdata-processingfile-handling

Description

Build a web tool for uploading, previewing, transforming, and exporting CSV data.

Requirements

Drag-and-drop CSV file upload with instant preview table

Column operations: rename, delete, reorder columns

Row filtering: filter rows by column value (equals, contains, greater than, etc.)

Sort by any column (ascending/descending)

Aggregate functions: count, sum, average, min, max per group

Export transformed data as CSV or JSON

Handle files up to 100K rows without freezing

Parse CSV using PapaParse or custom parser. Use virtual scrolling for large datasets. Process data transformations in a pipeline.

Formula column (create new column from expression)

Chart generation from selected columns

Undo/redo for all transformations

You will be guided through MCP setup before the timer starts