The best secure client portal for file sharing
Traditional client portals add costs for businesses and complexity for clients. Proton Drive simplifies document sharing without compromising on security. No client logins, no clunky dashboards, and no hidden fees.
What is a client portal?
A client portal is a secure online portal for businesses to exchange files and collaborate with clients — without relying on unsecured email or cloud transfers. Typically, clients log in to a business’s dedicated portal where they’re granted access to documents, projects, and the ability to collaborate. Many client portals include functionality that not all businesses need, such as branded dashboards, billing integration, and CRM tools.
Simplify secure document sharing with Proton Drive
Proton Drive is an easy-to-use, affordable, and secure portal for sharing documents. Traditional client portals can be costly and complex, bloated with more functionality than you actually need. Proton Drive empowers your business with the features you actually need.
Share from an end-to-end encrypted environment
Proton Drive is a secure portal for document sharing. End-to-end encryption is enabled by default; only you and your clients hold the keys to your data. Your files stay safe and accessible only to authorized users — not even Proton can read them.
Control access to shared files
Share files using secure links or email, with the added security of password protection and expiration dates. You have stronger control over who has access to documents and for how long.
Track and manage files even after sharing
Stay in control over documents even after sharing. Monitor, manage, and revoke access to shared documents at any time.
Share files clients can view without signing up
Your clients can view shared documents and folders even without a Proton Account. Unlike client portals, they don’t need to sign up and navigate complex dashboards just to access a file.
Receive files from clients
No more back-and-forth over email. Clients can directly upload documents into shared folders for seamless and secure sharing — Proton Account optional.
Access shared files on any device
Easily access, browse, and share files even when you’re on the move. Proton Drive is available on the web, desktop, and mobile.
Collaborate in real-time
Proton Drive comes with built-in online docs and spreadsheets. Securely collaborate on documents that sync automatically, ensuring everyone is aligned.
Transparent pricing
Proton Drive has no hidden fees, no paywalled features, and no ads. Our Drive Professional plan gives you everything you need at a predictable monthly or yearly rate.
Safeguarded by European sovereignty
Proton is based in Switzerland and operates under a rigorous privacy framework. Your business data is protected by some of the world's strictest data protection laws.
Simplify compliance
Proton is ISO 27001 and SOC 2 Type II certified. Our end-to-end encrypted design supports compliance with HIPAA, GDPR, and other data protection requirements.
Open source and independently audited
All our apps are fully open source and independently audited by third parties — anyone can trust and verify our security promises.
Trusted by security-conscious businesses
Elemnta, Australia
50-200 employees
“It's really the activity logs that are important for me, and the granular control. The shift to using Proton Pass has greatly benefited us.”
GILAI, Switzerland
Managing IT of 1000+ employees
"We needed a password manager that would be easy to use for the end user and easy to manage for the administrator. I didn't need to do any specific documentation, or any demo except for the provisioning of the account because it's really, really user friendly."
Novalytica AG, Switzerland
11-50 employees
"Onboarding was very easy. Everyone is using it and it works, and no one wants to go back to writing passwords by hand in a sheet or in a notebook."
Morning
350 employees
"I wanted the UX to be beautiful. I think it's important that when you migrate 300 or 400 users, you should choose a solution that isn't too difficult to use or unpleasant to look at. I think it's important for commercial teams to have something user-friendly. That was the case with Proton Pass."
The secure client portal software for every industry
Law firms
Securely exchange legal documents without the hassle of complex software. Proton Drive’s secure design keeps documents confidential and safe, while secure sharing functionality ensures only the right eyes see privileged information.
Healthcare
Ensure HIPAA compliance with Proton Drive’s end-to-end encrypted design. Securely share protected healthcare information (PHI) and safeguard it from breaches and unauthorized access — all without expensive and complex software.
Finance
Share confidential financial information securely while staying compliant. Proton Drive empowers you with controls to track and manage access, set expiration dates, and revoke access instantly. Do it all easily without the complexity of traditional portals.
Consultancies
Proton Drive works as a document sharing portal so deliverables don’t have to be shared as unsecured email attachments. Say goodbye to exposure risks — share files, get feedback, and collaborate from the safety of an encrypted environment.
Proton Drive vs. traditional client portals
A client portal is overkill for businesses that really only need a secure file-sharing solution. Proton Drive strikes a balance between value and security, making it the best secure client portal alternative for file sharing.
| |  Proton Drive | Traditional client portal |
|---|---|---|
| Traditional client portal | Yes | No |
| Open source | Yes | No |
| Client account optional | Yes | No |
| Cloud storage | Yes | No |
| Online document and spreadsheet editing | Yes | No |
| AI chat assistant | Yes | Yes |
| Link expiration | Yes | Yes |
| Granular access controls | Yes | Yes |
| CRM functionality | Yes | Yes |
| Integrated billing tools | Yes | Yes |
| White-label | Yes | Yes |
Frequently asked questions
- Are there file size limits to using Proton Drive?
- How easy is it to set up Proton Drive?
- Is standard cloud storage good enough for client file sharing?