Merge CSV Files

• CSV Split
• CSV to Excel
• CSV Viewer
• CSV Tools

Combine multiple CSV files with parsing controls and output preview.

• Merge multiple files: Combine CSV files into a single output file.
• Delimiter control: Use auto-detection or choose delimiter manually.
• Encoding options: Read files using UTF-8, Windows-1252, or ISO-8859-1.
• Header handling: Optionally use first row as a single output header.
• Preview and export: Review merged output, then download or copy.
• Private: All processing stays in your browser.

A single merged file is easier for analysis, import pipelines, and sharing.

• Simpler analysis: Use one combined file in spreadsheets and scripts.
• Cleaner imports: Many tools accept one CSV more easily than many files.

Each file is parsed with selected options and appended in order.

• Load files: Add CSV files by picker or drag-and-drop.
• Apply options: Set delimiter, encoding, and header behavior.
• Build output: Rows are appended in list order into merged CSV.
• Preview and export: Preview merged result, then download or copy.

These settings control parsing and merged output structure.

• Delimiter: Auto, comma, semicolon, tab, or pipe.
• Encoding: Choose file reading encoding per your source files.
• First row as header: Use first file header once in merged output.

Use Auto first; switch to manual if parsing looks incorrect.

• Comma: Most common in CSV exports.
• Semicolon: Common in some regional CSV formats.
• Tab: For TSV-like files.
• Pipe: Used in some data pipelines.

CSV parsing and merge generation run in your browser with no server upload; heavy output updates are deferred to keep the UI responsive on larger file sets.