Cairo Secure Eraser vs Crypto Shredder

Cairo Secure Eraser is a free Windows utility that overwrites selected files and folders, making recovery more difficult than after ordinary deletion. It offers four erasure choices: Quick uses one pass, Standard uses three, Secure uses seven passes following DoD 5220.22-M, and Gutmann uses 35 passes. Multiple files and folders can be selected together. The program shows progress, completion reports, and detailed operation logs. CairoSoftware says processing happens locally without an internet connection, with no files or deletion data sent to external servers. The listed release is version 1.0.0 from January 9, 2026, and its download is 50.3 MB. Minimum requirements are 2 GB RAM, 50 MB free storage, and a dual-core 1.5 GHz processor. Downloading requires a free account. Protected or system-related items may require administrator permissions. Email support is available in English and Arabic.

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.