CSV Tools

Convert Feather to CSV

Convert Apache Feather/Arrow files to CSV format

Feather Input

Drop your .feather or .arrow file here

or click to browse

CSV Output

CSV output will appear here...

How to Use This Tool

This tool converts Apache Feather/Arrow IPC files into CSV format. Drop your file and get clean CSV output instantly. Runs directly in your browser — your data is never uploaded.

  1. Upload your file — Drop a .feather, .arrow, or .ipc file onto the upload area or click to browse.
  2. Get your CSV — Copy the result or save it as a .csv file.

FAQ

4 questions
Does this tool upload my data?
No. The conversion happens entirely in your browser. Your data never leaves your device.
What is a Feather file?
Feather (v2) is the Apache Arrow IPC file format, used for fast data interchange between Python (pandas/polars) and R. Files typically have a .feather, .arrow, or .ipc extension.
Are column types preserved?
Column values are converted to text for the CSV output. The original Arrow data types are used to format values appropriately.
What if I get a compression error?
Some Feather files use LZ4 or ZSTD compression. If you see a codec error, try re-saving the file without compression. In Python: df.to_feather('file.feather', compression='uncompressed'). In R: write_feather(df, 'file.feather', compression='uncompressed').

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