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Lockbin
What it is
Lockbin is a web application for sending private email messages and files. Recipients can access messages through a unique URL and password, with passwordless secure links also available for known recipients. Messages are protected in transit with TLS and at rest with FIPS 140-2 verified AES-256 encryption; Lockbin says decryption keys are held by senders and recipients rather than stored in plaintext on its servers. The service runs in Chrome, Firefox, Safari, or Edge on Mac, Windows, or other operating systems without installation. It works alongside Google Workspace and Microsoft 365 without a plugin or extension. Premium users can create hosted file-drop links or embed secure forms for incoming files. The free plan is listed for one user, 25 MB attachments, and six months of inbox storage; the site also advertises 10 free messages without a credit card. Premium costs $10 a month and lists up to 20 attachments per message and uploads up to 100 MB. Uncollected messages are removed after six months, and read files not marked for deletion are removed within 24 hours.
For and against
For
- Recipients can access messages using URL and password.
- Encryption is used in transit and at rest.
- Runs in common browsers without installation.
- Works with Google Workspace and Microsoft 365 without plugins.
Against
- Free plan is listed for one user.
- Free attachment limit is 25 MB.
- Outlook integration is not available.
- Read files not marked for deletion are removed within 24 hours.
The verdict
Lockbin provides browser-based delivery for private messages and files, with recipient passwords and stated encryption protections. Note the free plan's listed user and attachment limits, and the service's message and file deletion periods.
Who it suits
Lockbin may suit medical, dental, CPA, finance, and government organizations that handle sensitive information. It may also fit people who need to send protected messages or files through a browser.
Plans and prices
Premium
1 user · up to 20 attachments per message · up to 100MB per upload · no pre-set storage limits
Read 28 Sep 2026 · lockbin.com
Multi-User Enterprise
Unlimited users · shared address book · admin compliance copies · bulk user import
Read 28 Sep 2026 · lockbin.com
Free
1 user · one file attachment up to 25MB · inbox storage up to 6 months · email support
Read 28 Sep 2026 · lockbin.com
On the record
- Admin access controls
- Yeslockbin.com · read 20 Sep 2026
- Attachment limit
- 100lockbin.com · read 20 Sep 2026
- Auto deletion
- Uncollected messages are automatically destroyed after six months, and read files not marked for deletion are removed within 24 hours.lockbin.com · read 28 Sep 2026
- Browser access
- Lockbin runs in Chrome, Firefox, Safari, or Edge with nothing to download or install, and works on Mac, Windows, or any operating system.lockbin.com · read 28 Sep 2026
- Encryption
- Messages are protected in transit with TLS and at rest with FIPS 140-2 verified AES-256 encryption.lockbin.com · read 28 Sep 2026
- File drop
- Premium users can create a hosted Lockbin file-drop link or embed a custom secure form so people can send files without an account or password.lockbin.com · read 28 Sep 2026
- Free offer
- The site advertises 10 messages free with no credit card required.lockbin.com · read 28 Sep 2026
- Gmail integration
- Nolockbin.com · read 20 Sep 2026
- HIPAA and BAA
- Lockbin offers a signed Business Associate Agreement on Premium and Enterprise plans by request and commits to breach notification within 60 days.lockbin.com · read 28 Sep 2026
- Hosting
- Lockbin states that all data is stored within the United States and its servers use a fully redundant cloud facility with physical security and access controls.lockbin.com · read 28 Sep 2026
- Integrations
- Lockbin works alongside Google Workspace and Microsoft 365, with no plugin or extension required.lockbin.com · read 28 Sep 2026
- Key management
- Decryption keys are not stored on Lockbin servers in plaintext, and the sender and recipient hold the decryption keys.lockbin.com · read 28 Sep 2026
- Message expiry
- Yeslockbin.com · read 20 Sep 2026
- Outlook integration
- Nolockbin.com · read 20 Sep 2026
- Primary users
- Lockbin targets medical, dental, CPA, finance, and government organizations handling sensitive information.lockbin.com · read 28 Sep 2026
- Product
- Lockbin is a web application for sending private email messages and files.lockbin.com · read 28 Sep 2026
- Recipient access
- Recipients can open messages from a unique URL plus password, with passwordless secure links also available for known recipients.lockbin.com · read 28 Sep 2026
- Recipient verification
- passwordlockbin.com · read 20 Sep 2026
