Goolbox

Your Garmin mobile workstation

Clean watch storage, transfer local music, sideload Connect IQ builds, read app logs, and inspect or rescue FIT files from Android.

Get it on Google PlaySee how it works
USB tools
Storage, music, PRG, and logs
FIT tools
Inspect locally and repair damage
Pricing
Only FIT repair requires Pro
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One toolbox for Garmin file workflows

Use focused tools for routine maintenance, local media, Connect IQ development, and damaged FIT activity files.

Storage cleanup

Review Garmin activity files, back up selected items, and clean only after confirmation.

USB music transfer

Copy local MP3 files to Garmin watches that expose a compatible music folder.

Connect IQ tools

Sideload PRG development builds and read application logs from a connected watch.

FIT inspection and rescue

Search FIT records, inspect event details, and repair damaged activity files locally.

Every device change stays in your hands

Goolbox waits for Android USB authorization and your confirmation. File operations run serially so progress and failures stay visible.

  1. 1

    Connect a compatible Garmin watch to your Android phone with USB OTG.

  2. 2

    Grant Android USB access, then choose the tool you need.

  3. 3

    Review each operation and confirm before Goolbox changes watch storage.

Privacy-conscious by design

File review and cleanup run on the Android device after USB access; FIT parsing and repair are local as well. Files leave your device only when you explicitly attach them to a support email.

Read privacy policy

Common questions

Practical details about compatibility, pricing, and file handling.

Does Goolbox modify files automatically?

No. You grant USB access, choose files, and confirm before cleanup, transfer, or sideload operations begin.

Which features are free?

Storage cleanup, USB music transfer, PRG sideload, app logs, and FIT inspection are free. Only FIT repair requires Goolbox Pro.

Where are files processed?

Watch operations and FIT processing run on your Android device. Goolbox does not upload your watch files to its own servers.

Why isn't there an iPhone version?

Goolbox needs direct USB MTP access to a Garmin watch. Garmin does not provide the MFi/External Accessory integration this workflow would require on iPhone, and iOS does not expose the generic USB MTP APIs available on Android.

Can I use these tools from a computer?

For terminal-based computer workflows, use the open-source Garmin MTP CLI to browse, pull, push, and automate Garmin file transfers.

View Garmin MTP CLI on GitHub

Is this affiliated with Garmin?

No. Goolbox is an independent utility and is not affiliated with or endorsed by Garmin.