Crypto Shredder vs ZERDAVA File Shredder

Crypto Shredder is Windows software for overwriting accessible file and directory data before deleting it. It replaces file contents with cryptographically generated random data, then flushes and synchronizes the write. It also processes an in-memory copy three times with AES-256-GCM, using a new 256-bit key and nonce on each pass; encrypted output is not saved as a file. Before releasing its final working buffer, the application overwrites it with zeros, while noting that Python and Windows may manage other temporary memory. Users confirm before processing and can optionally export a text report with the date and time, computer, Windows user, IP address, selected item, and processing sequence. The maker describes it as a standalone app that requires no installation. Crypto Shredder handles files and folders, not drive wiping. Its maker cautions that overwriting cannot ensure every physical NAND cell on SSD or NVMe storage is sanitized, or remove copies beyond the app’s control. The free Windows edition costs nothing.

ZERDAVA File Shredder securely erases files, folders, disks and removable media on Windows and Android. Its free-space wipe targets unused disk space, and it can erase USB sticks and SD cards. Before deletion, the product checks a password; afterward, it can generate a report. ZERDAVA says its software supports more than 20 international erasure standards, though available methods vary by version; Gutmann is the listed standard. The Windows Shredder plan costs $26 a year and includes a 7-day free trial. The Android Mobile Shredder plan also has a 7-day trial, but no price is listed. Supported systems listed in the FAQ are Windows 7, 8, 8.1 and 10, and Android 4.1 or higher. Windows downloads include online and offline installers in 32-bit and 64-bit versions, with English and Turkish options. Automatic updates are provided during the license period. For organizations, ZERDAVA describes solutions for servers and workstations, with a web-based management console in its enterprise solution. Its privacy policy says offline-scanned personal data stay on the device, while files with suspicious clues may be sent to its cloud service for examination.