Lockbin

Overview

Lockbin is a browser-based service for sending private messages and files, aimed at organizations that handle sensitive information, including medical practices, finance teams and government agencies. Its combination of password-protected recipient access, message cleanup and file delivery makes it a focused option for sending sensitive material without installing software.

Messages use TLS in transit and AES-256 encryption at rest, with FIPS 140-2 verification. Lockbin says decryption keys are not kept on its servers in plaintext, and that data is stored in the United States. These safeguards may suit organizations with privacy obligations, but a BAA is available by request only on Premium and Enterprise plans.

Recipients can open a message through a unique URL and password; passwordless secure links are also available for known recipients. Messages work in common browsers without a plugin or extension. Lockbin works alongside Google Workspace and Microsoft 365, but does not offer direct Gmail or Outlook integration, so teams seeking a native mail workflow should look elsewhere.

Key features

• Recipient access: A URL plus password puts a defined step between delivery and access. Passwordless links for known recipients reduce friction where the recipient is already recognized.
• Expiry and cleanup: Uncollected messages are destroyed after six months. Read files not marked for deletion are removed within 24 hours, a useful default for reducing lingering sensitive material, though senders must account for the difference between read and uncollected items.
• File delivery: Premium users can make a hosted file-drop link or embed a secure form so people can send files without an account or password. This is useful for collecting documents from outside an organization, but the feature is not part of the free plan.
• Administrative controls: Admin access controls are supported. Enterprise adds shared address books, compliance copies for administrators and bulk user import, which make it more suitable for coordinated team use than a single-user account.
• Support: Current users can email support for assistance; professional-tier users can also reach support by phone through their account.

Pricing

Lockbin is freemium, with a free plan and paid plans billed monthly. The site advertises 10 free messages with no credit card required, while the Free plan specifies one user, 25 MB attachments and six months of inbox storage. That is enough to try occasional small transfers, but the one-user and attachment caps make it a poor fit for sustained team use.

Premium costs $10 a month, billed monthly, for one user. It allows up to 20 attachments per message, uploads up to 100MB and has no preset storage limits; a BAA is available by request. This is the practical step up for an individual who needs larger file transfers or a BAA, but it remains a one-seat plan.

Multi-User Enterprise costs $10 a month, billed monthly, and includes unlimited users, a shared address book, admin compliance copies, bulk user import and uploads up to 1GB. Its listed monthly price matches Premium while removing the one-user ceiling and adding team administration, making it the stronger fit for organizations that need those capabilities. The plan descriptions do not clarify how the two monthly prices apply in practice, so buyers should confirm the commercial terms before committing.

Platforms

Lockbin runs in Chrome, Firefox, Safari or Edge and supports web access on Linux, macOS and Windows. Because it requires no download or installation, it suits teams working across those operating systems. There is no direct Gmail or Outlook integration, though it works alongside Google Workspace and Microsoft 365.

Who it's for

Lockbin is best suited to a single professional or an organization that needs to send sensitive messages and files through browser access, with recipient passwords and predictable cleanup. Premium suits an individual who needs larger uploads or a BAA; Enterprise is the more relevant option for a team needing unlimited users and administrative features. It is less suitable for users who need native email integration, or a free multi-user service with larger attachment allowances.

Pros and cons

• Pro: Password-protected message access and defined deletion behavior offer practical controls for sensitive delivery.
• Pro: Enterprise includes unlimited users, compliance copies and bulk import, addressing several needs of managed team deployments.
• Pro: Browser access across major operating systems avoids installation and plugin requirements.
• Con: Free is limited to one user and 25 MB attachments, constraining teams and larger transfers.
• Con: Direct Gmail and Outlook integrations are absent, which may interrupt workflows built around those inboxes.
• Con: The BAA requires a request and a Premium or Enterprise subscription, so it is not an automatic free-plan benefit.

Alternatives

For a broader comparison, browse Email Encryption Software or File encryption tools.

• DataMotion Secure Email Exchange is worth considering for organizations seeking an enterprise offering with Android, iOS, API and web platforms; its paid pricing is contact-sales.
• Encryptomatic OpenPGP may suit Windows users looking for a license-based option, with a one-license plan at $29.99 a year.
• gpg4o is an alternative for Windows users who specifically need OpenPGP functionality in Microsoft Outlook.
• Mailvelope is an option for readers who prefer a browser extension and web platform; its Business plan is €3 a month per user for 1–49 users.
• FlowCrypt may fit users seeking an extension-based option with a free tier for fewer than 100 users and a 5 MB attachment threshold.
• Gpg4win is an alternative for Windows users seeking free software.
• PDF Postman is another Windows option for readers who prefer a license-based product.
• SecureMyEmail is an alternative for people who need support across Windows, macOS, iOS and Android.

Verdict

Choose Lockbin if you need browser-based private message and file delivery with recipient access controls, automatic cleanup and a path to team administration. Its strongest case is the combination of defined access and Enterprise team features; look elsewhere if direct Gmail or Outlook integration is essential, or if the free one-user, 25 MB limit is too restrictive.