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How to open .CAR files on Android

To open .CAR files on Android, there is no common Android-native viewer for IPLD CAR archives; transfer the .car file to a desktop and open it using IPFS Kubo or ipfs-car.

Step-by-step instructions

  1. There is no common Android-native viewer for IPLD CAR archives; transfer the .car file to a desktop and open it using IPFS Kubo or ipfs-car.

Alternative methods

  • Open .CAR in a browser-based viewer if desktop apps fail.
  • Try opening .CAR on Android with a secondary app to rule out app-specific issues.
  • Convert .CAR only with trusted tools when direct opening is not possible.

Common issues

The .CAR file won’t open in a normal archive or media app

CAR is not a ZIP/RAR media container; it stores IPLD/IPFS blocks addressed by CIDs, so typical desktop viewers won’t recognize it.

  1. Open it with IPFS/IPLD tooling (IPFS Kubo for import/export workflows, or ipfs-car for pack/unpack operations).
  2. If you expected regular files (e.g., a folder), use a CAR unpacking workflow (such as ipfs-car) rather than a generic archive utility.

Import/export fails (file is malformed or incompatible)

Tools may reject CAR files that are not well-formed according to the CAR specification or are otherwise truncated/corrupted.

  1. Re-download or re-export the .car file to rule out truncation or partial transfers.
  2. Confirm the producing tool matches the CAR spec expectations (see the IPLD CAR spec hub and CARv1 specification) and use a compatible reader/writer implementation (e.g., Kubo, ipfs-car, or js-car).

You imported the CAR but can’t find the expected content

A CAR can contain multiple roots or a different root than you assumed; without the correct root CID, the data you want may not be obvious.

  1. Check the roots/entry points using CAR-capable tooling (e.g., a CAR reader/writer utility or library) and identify the correct CID root for the data you need.
  2. Repeat the export/import using the intended root CID when generating the CAR (per the IPFS Kubo DAG export/import workflow).

Security note

Treat .car files as untrusted input: they are parsed by complex codecs and block-processing code, so only use reputable tools and keep them updated.

Back to .CAR extension page