A Videographer Built a Free App That Tells You When a Memory Card Is Safe to Wipe

Videographers often face a high-stakes moment at the end of a shoot. They must decide if their memory cards are truly backed up before formatting them for the next job. Luke Lv, a studio owner in the UK, developed a free software tool called Stow to address this common pain point. Many standard operating systems copy files without verifying data integrity. This creates a risk where users might delete footage that failed to transfer correctly or became corrupted during the copy process.

Stow operates by copying data from a camera card to two separate drives at the same time. The app then performs a byte-by-byte check on both destination drives to confirm the files match the original data. The application does not write any information back to the camera card, which keeps the original media secure until the verification process concludes. Once the check is complete, the software provides a clear indicator of whether the card is safe to wipe.

This workflow helps creators maintain a consistent backup strategy without relying on expensive, subscription-based software. The app handles the technical side of file verification so photographers can clear their media with confidence. Because it is a new tool, users currently need to bypass some initial security warnings on macOS and Windows to install it, as the software is not yet certified by these operating system developers.

Stow is currently free to use with no account requirements or hidden fees. By removing the cost barrier, the developers aim to make professional-grade data verification available to any creator who needs to protect their footage. Users can find the download and installation guides on the official project website, which outlines how to handle the setup process on various systems.