Secure File Shredder
Overwrite files in memory using multiple passes of random data, zeros, and ones — implementing DoD 5220.22-M and Gutmann-inspired wiping patterns — then download the overwritten output. Use this before deleting cloud-synced or shared files to ensure the content cannot be recovered.
shred, sdelete). This tool is most effective for files stored in cloud services (Google Drive, Dropbox) or temporary locations where you can replace the file content.
What this tool cannot do: Directly write to your disk sectors. True forensic-grade deletion requires OS tools:
• Linux/macOS:
shred -vzu -n 35 filename• Windows:
sdelete -p 7 filename (Sysinternals)Best for: Cloud-synced files (Google Drive, Dropbox, OneDrive), files shared on cloud storage, temporary files before account deletion, and situations where replacing file content is sufficient.
Frequently Asked Questions
Does this tool actually delete files from my disk?
Web browsers cannot directly delete disk files for security reasons. The tool overwrites file data in memory with random bytes, preventing recovery from browser cache.
Is this as secure as disk-level shredding?
For browser-level security it is effective. For complete disk wiping, also use a dedicated tool like Eraser (Windows) or Secure Empty Trash (macOS).
What overwrite pattern does the tool use?
Multiple passes using cryptographically random data from crypto.getRandomValues(), following the NIST SP 800-88 single-pass random overwrite model.
Are there file size limits?
The tool processes files in browser memory. Very large files (over 500MB) may cause memory pressure on devices with limited RAM.