CopyQuayA clear handoff, step by step.
Copy with a clear finish line.
1. Choose a source folder, then two destination folders. Give the copy an optional label. 2. Review the file list, storage locations and available space. If both destinations share one volume, acknowledge that they are not independent device backups. 3. Choose Copy and verify both. CopyQuay writes each file to new job folders, reads each destination again, and checks the source again. 4. A completed folder contains Files, Manifest.json, Report.html, Checksums.csv and Status.json. Give the whole folder to the recipient. 5. Use Check a copy to compare a completed folder with its saved manifest. The original source is not needed. The website also offers a free local browser check.
Check a copy
Open a completed CopyQuay folder. Its saved manifest is compared with the files inside Files; the original source is not required.
Choose Manifest.json from a completed CopyQuay folder, then choose its Files subfolder. Your browser reads and hashes the selected files on this device. Nothing is uploaded.
Browser checks compare files only. Empty folders cannot be checked by this browser.
This unsigned manifest can be edited. A match checks content against its recorded values; it does not prove the identity of the sender or the physical health of a disk.
Free local verifier ↗What this version checks
Copies regular file data and empty folders, up to 50,000 files and folders per job. Symbolic links, Finder aliases, special files and ambiguous Unicode/case names are rejected. .DS_Store files are ignored and counted. Manifest size is limited to 64 MiB. Download cloud-only files before copying. This is not a full filesystem clone, recovery tool, sync service, cloud backup or professional DIT suite. Resource forks, extended attributes, permissions, camera-specific SDK handling and ASC MHL are not provided. Existing files are never replaced; partial output is retained. Checksums compare the bytes returned by the operating system with an unsigned saved record. They do not prove authenticity, physical-disk durability or future reliability. No hardware-laboratory certification is claimed. CopyQuay never erases or ejects source media.
Contact support
Tell us your macOS version, the phase and the exact message. Please do not send sensitive media or personal information.