USBImager writes raw and compressed disk images to USB drives and creates raw or compressed and verifiable backups of USB media. This free application presents a minimalist graphical interface that accepts common disk image formats (.img, .iso) and compressed image formats (.gz, .bz2, .xz) for writing and offers on-the-fly decompression.

USBImager offers a verification step that compares the written data with the source image. For backup, it writes raw data or compresses it using the ZStandard format. The tool also runs as a portable executable without requiring installation and operates across Windows, macOS, and Linux environments while maintaining a compact footprint.

Write swiftly

USBImager shows detected USB devices and lets the operator select an image file for writing. It reads raw and compressed images directly, decompressing on the fly during the write process. Supported compressed formats include gzip, bzip2, and xz; the software handles each without external plugins. The interface lists target drives and source images in separate fields. Device selection and image selection occur before initiating the writing task.

The writing process includes an optional verification phase after data transfer. During verification, the written USB media is read back and compared bit-for-bit with the source image file. Discrepancies between the image and media are reported after verification completes. Progress indicators display the amount of data processed during both write and verify operations, providing enhanced feedback. However, it lacks scripting or automation features.

For backups, it reads the entire USB device and outputs either a raw image file or a compressed image using ZStandard compression. The tool prompts for an output file name and compression selection. It writes the backup data sequentially and reports completion when all sectors have been captured, ensuring data integrity and completeness. ZStandard compression reduces file size during backup.

Fast, minimal, reliable

USBImager handles writing of raw and compressed disk images to USB drives, including on-the-fly decompression. It offers a verification mode that reads back data and compares it to the source image. Backup functionality produces raw or ZStandard-compressed images of USB devices. The interface is minimal, executable runs without installation. Feature support covers common image formats and a verification step, but does not include advanced imaging options or scripting interfaces.