Encrypt Files with Password Protection
Upload any file, set a password, and download it protected. PDF, Office, 7z, and ZIP files stay in their native format — other files are wrapped in an AES-256 ZIP. The strength meter reacts while you type.
Encrypt Your File
One upload, two password fields, live strength check, native or ZIP-encrypted download.
Guide & Security Reference
Detailed instructions, security features, and answers to common questions about file encryption.
How Secure File Works
1. Upload
Choose any file up to 100 MB. The tool accepts documents, archives, images, spreadsheets, and more.
2. Set password
Type the password twice and watch the strength meter change immediately.
3. Download file
Download the encrypted file and share the password through a separate channel.
PDF / Office (native)
- 1.Download the protected file — it keeps its original extension (.pdf, .docx, .xlsx, etc.).
- 2.Open it directly in the associated application (Adobe Reader, Microsoft Office, LibreOffice).
- 3.Enter the exact password when the app prompts for it.
- 4.Native encryption means no extraction — the file opens directly after authentication.
ZIP / 7z (archive)
- 1.Download the encrypted archive.
- 2.Right-click it, choose Extract files or Extract here (use 7-Zip or WinRAR if the system tool fails).
- 3.Paste the password and confirm.
- 4.Open the original file from the extracted folder.
Forgot a password instead?
Use the recovery guide if you need to open an already protected file.
Protect the next file before you send it
Secure File is designed for quick sharing: upload, choose a strong password, download the encrypted file, and send the password separately.