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FEATHER to PARQUET converter, without the upload.

Turn FEATHER datasets into PARQUET. It is converted in your browser, so the file never leaves your device.

Drop FEATHER files here

or choose from your computer paste with Ctrl V

Ready · other file types work too0 bytes uploaded, ever

Convert to

How to convert FEATHER to PARQUET

  1. Add your FEATHER datasets

    Drop FEATHER files onto the box above, or click it to choose them. ToAny reads the file's contents to detect the type, so a wrong extension does not matter.

  2. PARQUET is already chosen

    Press Convert. There is nothing else to set. The work happens in this tab.

  3. Download

    Save the PARQUET, or download everything as one ZIP if you converted several files.

Why ToAny

  • Private by construction

    The FEATHER to PARQUET converter is part of this page and runs inside your browser. Your datasets are never sent to ToAny or to anyone else.

  • No upload, no queue

    Nothing has to travel to a server and back, so the conversion starts the moment you press Convert, even on a slow connection.

  • Free, without an account

    No sign-up, no email address and no watermark. Add several files and download them together as a ZIP.

FEATHER to PARQUET: what to expect

Feather is binary, and spreadsheet programs cannot open it. Parquet is compact, typed and fast to analyse. FEATHER is at home in quickly saving a data frame between Python and R sessions; PARQUET is the usual choice for large analytical datasets.

Arrow IPC files and Feather version 2 files are read, including LZ4 and Zstandard compressed ones. The older Feather version 1 layout is refused with a message saying so. Each column gets one type chosen from all of its values: a column is numeric only if every non-empty cell is a number, and anything mixed, or a value such as a ZIP code with a leading zero, stays text.

FEATHER vs PARQUET

FEATHER

Feather table

Feather was created to exchange data frames between Python and R quickly. Version 2 is the Apache Arrow file format with a different name, version 1 an earlier, simpler layout. It stores column types exactly and reads much faster than CSV.

Opens in pandas, R and other analytics tools; not Excel

FEATHER converter
PARQUET

Apache Parquet table

Parquet stores a table column by column, with the type of every column recorded in the file and each column compressed on its own. That makes it small and quick to scan for analysis, which is why data lakes and warehouses use it. It cannot be read in a text editor or a spreadsheet.

Opens in pandas, Spark, DuckDB, BigQuery, Snowflake and other analytics tools; not Excel

PARQUET converter
FEATHER compared with PARQUET
FEATHERFeather tablePARQUETApache Parquet table
Stands forFeatherApache Parquet
TypeColumnar data fileColumnar data file
CompressionNone by default (LZ4 or Zstandard in version 2)Lossless (per column: Snappy, Zstandard, gzip and others)
Introduced2016, by Wes McKinney and Hadley Wickham2013, by Twitter and Cloudera, now the Apache Software Foundation
Opens inpandas, R and other analytics tools; not Excelpandas, Spark, DuckDB, BigQuery, Snowflake and other analytics tools; not Excel
Best forQuickly saving a data frame between Python and R sessionsLarge analytical datasets
File extension.feather.parquet

Questions

Are my datasets uploaded anywhere?

No. The FEATHER to PARQUET conversion runs inside your browser, on your own phone or computer. The file is not sent to ToAny or to anyone else.

Is anything lost when converting FEATHER to PARQUET?

The values are kept. Anything PARQUET has no way to express, such as formatting, formulas or nesting, is simplified or left out.

Can I convert several FEATHER files at once?

Yes. Add as many as you like, convert them together and download each result or all of them as one ZIP.

How do I convert FEATHER to PARQUET on Windows, Mac, iPhone or Android?

The steps are the same everywhere because ToAny runs in the web browser: open this page in a current version of Chrome, Edge, Safari or Firefox, add the FEATHER file, press Convert and save the PARQUET. There is nothing to install.

Is there a file size limit?

Yes. Binary data files up to 150 MB are accepted; a larger file is refused with a message. Beyond that the limit is your device's memory, since nothing is uploaded; a computer copes with large files better than a phone.