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Repair common Windows errors and clear accumulated junk for a smoother, more stable PC - no reinstall needed.Free scan · no reinstallTo use Keeper Secure File Storage, attach a file to an existing vault record or create a dedicated File Attachment record, wait for the upload to finish, and save the record. You can later view or download the attachment from that record. Before relying on it as a cloud copy, confirm that syncing has completed: a crossed-out cloud icon means the file is still stored only on the device where you added it.
Choose where the file belongs
Use an existing Keeper record when the file is related to information already stored there—for example, a document associated with an account or a project. To keep a file separate, create a dedicated File Attachment record. On iOS and Android, Keeper specifically documents this record type as an option.
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Upload a file in Keeper
Web Vault or Desktop App
- Open the record you want to use, or create a separate record for the file.
- Edit the record, select Add Attachments, and choose a file. You can also drag and drop a file into the vault.
- Wait for the upload to complete, then select Save.
iOS or Android
- Open an existing record or create a record using the File Attachment type.
- Tap Add Files or Photos and select the file.
- Wait for the upload to finish. Check its sync status before expecting the attachment to be available in Keeper cloud storage or on another device.
Check file-size limits before uploading
Keeper’s Help Center lists a per-file limit of 100 MB in Web Vault and 5 GB in the Desktop App, Android, and iOS apps. These are platform-specific limits, not one universal limit for every Keeper interface or account. Keeper’s business feature page has also described a 100 MB attachment limit, so check the limit shown in your current app or the relevant Help Center instructions before transferring a large file.
View or download an attachment
Open the record containing the file and select the download icon beside the attachment. Choose View or Download, as available in your interface.
#1 Best Overall
- Certified to FIPS 197 - High-level information security standard approved by the U.S. Government
- Brute-Force Password Attack Protection - Data is automatically erased after 6 failed access attempts. The data and encryption key are securely destroyed and the crypto drive is reset
- Rugged Double-Layer Waterproof* Design - Protects the crypto drive against knocks, drops, break-in and submerging in water. The electronics are shielded by a hardended inner case. The rubberised silicone outer casing provides a final layer of protection
- Auto-lock - The crypto drive will automatically encrypt all data and lock when removed from a PC/Mac or when the screen saver or "computer lock" function is activated on the host PC/Mac
- Secure Entry - Data cannot be accessed without the correct high-strength alphanumeric 8-16 character password. A password hint option is available. The password hint cannot match the password
Share a file from Keeper
Share with another Keeper user
Open the record containing the attachment and select Share. Enter the recipient’s Keeper account email and choose the permission that fits the situation. Depending on the interface and sharing settings, permissions can allow viewing, editing, sharing, or a combination. The attachment is part of the shared record, so choose permissions for that record accordingly.
Share with someone who does not have Keeper
Keeper describes One-Time Share as an option for sharing with a recipient without a Keeper account. Check the current product controls and eligibility before relying on a particular expiration period or access behavior; those details can vary with current settings and availability.
Rank #2
- Certified to FIPS 197 - High-level information security standard approved by the U.S. Government
- Brute-Force Password Attack Protection - Data is automatically erased after 6 failed access attempts. The data and encryption key are securely destroyed and the crypto drive is reset
- Auto-lock - The crypto drive will automatically encrypt all data and lock when removed from a PC/Mac or when the screen saver or "computer lock" function is activated on the host PC/Mac
- Secure Entry - Data cannot be accessed without the correct high-strength alphanumeric 8-16 character password. A password hint option is available. The password hint cannot match the password
- SuperSpeed USB 3.0 - Transfer all your confidential files and folders faster than ever before. Works on both PC & Mac
Fix a file that has not synced
A cloud icon with a line through it means the attachment has not finished uploading to Keeper’s cloud storage. Keeper says the file remains local to the device where it was added until upload completes, so do not count on it being backed up in the vault or available on other devices yet.
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- Check that the device has an internet connection.
- Allow the upload to finish, then check the attachment’s sync status again.
- If you still see the crossed-out cloud, do not assume the cloud copy is complete; check Keeper’s current help guidance for your app and account.
Availability and security notes
Keeper’s Help Center identifies Secure File Storage as a Secure Add-on and lists Web Vault, Desktop App, iOS, and Android. The documentation cited here does not establish a current consumer plan-by-plan quota or entitlement table, so confirm availability and storage terms for your account before depending on the feature.
Rank #3
- Certified to FIPS 197 - U.S. Government Approved High Level Information Security Standard.
- Protection against brute force password attacks - Data is automatically erased after 6 unsuccessful access attempts. The data of the USB flash drive type c encryption with dual connectors is destroyed and the cryptographic drive is reset.
- Durable dual-layer waterproof design* — Protects the crypto reader from bumps, drops, run-in and immersion in water. The electronics are protected by a hardened internal case. Rubberized silicone outer case provides a final layer of protection.
- Auto-Lock —The cryptographic key automatically encrypts all data and locks when removed from a PC/Mac or when screen protection or "computer lock" is enabled.
- Secure Entry —Data on these flash drives cannot be accessed without the correct alphanumeric password of 8 to 16 characters. A password indication option is available for this flash drive. The hint cannot match the password.
Keeper says files are encrypted during upload and that the user holds the encryption key; its guide describes 256-bit AES encryption with record-level keys. Those are Keeper’s product statements, not an independent security audit.
Quick Recap
Best Value
- FIPS 140-3 Level 3 (Pending) Certified Military-Grade Security
- OS/Device Independent
- XTS-AES Hardware Encryption
- Enforced Alphanumeric PIN
- Multi-PIN (Admin and User) Option
Rank #4
- FIPS 197 with XTS-AES 256-bit Encryption: Provides business-grade security with hardware-based encryption to protect your sensitive data
- Brute Force and BadUSB Attack Protection: Safeguards against unauthorized access attempts and malicious USB attacks with digitally-signed firmware
- Multi-Password Option with Complex/Passphrase modes: Offers flexible password configuration options to meet various security requirements and user preferences
- New Passphrase Mode: Enhanced security feature allowing users to create longer, more memorable password phrases for easier access without compromising protection
- Dual Read-Only (Write-Protect) Settings: Enables write protection functionality to prevent accidental data modification or deletion when needed
Keeper instructions and sharing details
- Keeper Security Help Center: Secure File Storage instructions
- Keeper User Guide: record permissions and encryption details
- Keeper: One-Time Share information
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
