CSV File Merger

Featuredintermediate

Merge multiple CSV files into one, with options to match columns or append rows.

mergecombinejoincsvfiles

What you'll configure

Merge strategyOptional

select

Extra requirementsOptional

e.g. Handle mismatched columns, dedup after merge

textarea

Example use case

“Merge monthly sales reports into one file, matching by column names”

Prompt previewClick to expand

Create a CSV file merger app.

Merge mode: {merge_requirements}

Upload multiple CSVs, preview each, map columns if needed, merge, preview result, download.

Use PapaParse — import Papa from 'https://esm.sh/papaparse@5'.

{additional_requirements}

Highlighted values like {variable} will be replaced with your inputs.

Fill in the fields and generate your app instantly

CategoryFile Processing

Difficultyintermediate

Inputs2 fields

TypeFrontend