Open ARROW files online
Apache Arrow is an in-memory columnar format for fast analytics; Feather is its on-disk variant. The viewer reads Arrow IPC and Feather v2 files and displays the first 1000 rows.
Drop a ARROW file to open it
or click to choose — everything stays on your device
Choose file🔒 100% private — files never leave your browser
Or turn ARROW into an image — snapshot the preview, add arrows or notes, and download a PNG.
What is a ARROW file?
Apache Arrow is an in-memory columnar format for fast analytics; Feather is its on-disk variant. The viewer reads Arrow IPC and Feather v2 files and displays the first 1000 rows. The .ARROW extension identifies a Apache Arrow / Feather file, which is served with the application/vnd.apache.arrow.file media type. You can open it here instantly — drop the file into the box above and it renders in your browser. Nothing is uploaded.
Besides this free online viewer, you can open Arrow / Feather files in desktop apps such as pandas, Polars, DuckDB — but here all you need is a web browser.
Quick facts
| Format | Arrow / Feather — Apache Arrow / Feather |
|---|---|
| File extensions | .arrow .feather |
| MIME type | application/vnd.apache.arrow.file |
| Developer | Apache Software Foundation |
| Category | Data & analytics |
| Also opens in | pandas, Polars, DuckDB |
How to open a ARROW file online
- Click Choose file above, or drag your ARROW file onto the box.
- The right viewer loads automatically and renders your file.
- Read, scroll or page through it. To open a different file, choose Open another file.
100% private — files never leave your browser.
Libraries used to render ARROW in the browser
This viewer is built entirely with open-source JavaScript that runs in your browser:
Frequently asked questions
What is a .ARROW file?
A .ARROW file is a Apache Arrow / Feather, identified by the application/vnd.apache.arrow.file media type. You can open and read it instantly in the viewer above without installing anything.
What programs open ARROW files?
On the desktop, ARROW files typically open in pandas, Polars, DuckDB. Online, this page opens them in any modern browser — nothing to download.
How do I convert ARROW to an image?
Use Snapshot to capture the ARROW preview, optionally add arrows, text or highlights, then download it as a PNG image.
Is it safe to open my ARROW file here?
Yes. The file is read and rendered entirely by JavaScript inside your own browser. It is never uploaded to a server, so nothing leaves your device.
Do I need to install anything to view a ARROW file?
No. There is nothing to install and no account to create. Open the page, drop your file, and it displays instantly.
Does it work on my phone or iPad?
Yes. The viewer is fully responsive and works in modern mobile and tablet browsers such as Safari and Chrome.
Is there a file size limit?
There is no hard limit, but very large files depend on your device’s memory. Big files are processed in the background so the page stays responsive.