Client Portal for Law Firms
Small law firms that still exchange client documents by email are one forwarded attachment away from a breach. Here is what a dedicated client portal changes.
· Updated · By ProjectSend Team

Your client emails an unsigned NDA as an attachment. You reply with the signed copy. Two weeks later they ask where it went - buried in a 200-email thread. A client portal eliminates that scramble. For small law firms, it does something more important: it gives confidential documents a private, auditable home.
Why Do Law Firms Need a Dedicated Client Portal?
A dedicated portal gives your firm a private channel for document exchange - with per-client access controls, branded with your name, and a complete log of every file upload and download. Instead of relying on email threads to track what was sent and received, you have a single source of truth.
Under ABA Model Rule 1.6, attorneys must make reasonable efforts to prevent unauthorized disclosure of client information. Email alone does not meet that standard: attachments get forwarded without your knowledge, inboxes lack access controls, and there is no systematic way to prove a client received and reviewed a document. A portal closes those gaps - not by promising compliance certifications (no hosted product can offer those), but by giving you the controls and audit trail that demonstrate reasonable care. See how it works on the product overview page.
Consider three scenarios. A client calls saying they never got the contract you sent two weeks ago - you have no receipt, just a thread buried under 40 other emails. A file-sharing link expired before they downloaded it. Or a document lands in the inbox of an ex-business partner still on a shared email alias. Each is recoverable. With a portal, none of them happen.
What Makes Email a Poor Channel for Legal Documents?
The main risks are four: wrong recipients, no access revocation after delivery, file size limits that cut off large case files, and no audit trail. Any one of these creates problems in an active matter - all four together are regular exposure for a busy practice.
- Reply-all incidents can expose one client's documents to unintended recipients in the same thread.
- Once an attachment is sent, you cannot revoke access - it can be forwarded indefinitely.
- Most email providers cap attachments at 20 to 25 MB, blocking compiled document sets and large case files.
- There is no reliable way to confirm a client opened and reviewed what you sent.
- Law firms are frequent targets of business email compromise, where attackers spoof or intercept email to access client files.
The last point is not hypothetical. The Cybersecurity and Infrastructure Security Agency (CISA) publishes guidance on protecting organizations from these attacks, with practical steps to reduce exposure. A portal with two-factor authentication and per-client login removes the easiest entry point. In disciplinary matters, you may also be asked to show a client received and reviewed a specific disclosure - email cannot produce a tamper-evident record of that, but a portal's activity log can.
What Features Should a Law Firm Portal Include?
The baseline is per-client isolation, firm branding, 2FA enforcement, and an exportable activity log. These four are non-negotiable if replacing email for confidential document exchange is the goal.
- Per-client folders: each client sees only their own files, never another client's.
- Your firm name and logo on the portal - not a third-party brand visible to your clients.
- 2FA enforcement by policy, not optional per user.
- Timestamped activity log: every upload, download, and preview, exportable for your records.
- Upload notifications so you are alerted the moment a client sends a document.
The branding point matters more than it sounds. When a client receives a notification that says your firm name - not a generic file-transfer service - that sets the tone for how they perceive the practice. It also reduces the chance the portal email gets mistaken for spam.
Some clients - especially corporate or financial - ask for a Data Processing Agreement before uploading sensitive material. Whether a provider offers a DPA and what it covers varies. Review the provider's privacy policy and consult your bar's guidelines for matters that require one.
How Does ProjectSend Cloud Handle This?
ProjectSend Cloud provides the full baseline: branded portal, per-client access controls, 2FA enforcement, download tracking, and daily backups - in a hosted setup that does not require your team to manage a server. The software behind it has been running in over 4,000 organizations worldwide for more than a decade.
Each firm gets its own dedicated database - not shared storage with other customers. Files are encrypted in transit and at rest. Access controls follow 45 granular permission levels per client account. The NIST Cybersecurity Framework identifies access control, audit logging, and data protection at rest as core capabilities for organizations handling sensitive information - ProjectSend Cloud covers these by default.
For a detailed look at how legal practices structure document exchange, see our guide on how law firms share documents securely. Migration between self-hosted and hosted goes in both directions - you take your full file archive with you. No data hostage, no transition fees.
Self-Hosted or Hosted: Which Fits Your Firm?
If your firm's IT team manages servers and wants full infrastructure control, the open source ProjectSend is a free option - same software, running on your own stack. If you want the portal without managing hosting, DNS, SSL, backups, and updates, ProjectSend Cloud handles all of that.
The open source code is licensed under GPLv2 - not AGPL - which matters for long-term licensing stability. The ProjectSend open source project has more than 4.8 million Docker image downloads and is maintained by the same team that runs ProjectSend Cloud. The two share the same codebase - what you see on the hosted version is what the community has been running for years.
What Does It Actually Cost?
ProjectSend Cloud has three plans. Free is a real plan - not a trial: a personal account on a shared site with 2 GB of storage and a private link for every file, kept for 30 days, and community support. No credit card, no time limit. Pro is $19 per month: a portal of your own with your logo, 25 active client accounts, 100 GB of storage and 3 team seats. Business is $49 per month: unlimited client accounts, SSO, enforced 2FA, and priority support. Pricing is per workspace - your clients never pay. See all plan details on the pricing page.
For context: most alternatives charge per seat inside the firm, or tier client account counts in ways that add up quickly as your book grows. With ProjectSend Cloud, the billing unit is active client accounts - the number of client-side logins, not the headcount at your firm.
If you spend more time chasing files and confirming receipts than doing legal work, a dedicated portal will give that time back. Start free - no credit card, no time limit.
Frequently asked questions
- Does using a client portal affect attorney-client privilege?
- A portal does not create or waive privilege - that comes from the attorney-client relationship itself. It does provide a private, access-controlled channel for exchanging privileged documents, with a timestamped log of who accessed what. Consult your jurisdiction's bar guidelines for specific requirements.
- Do my clients need to install anything?
- No. Clients access the portal through a browser. There is nothing to download or install on their end.
- What happens to our files if we cancel?
- You can export your full file archive at any time. The underlying software is open source under GPLv2, so you can take your data to a self-hosted instance of the same software. You are never locked in.
- Can I brand the portal with our firm name and logo?
- Yes, on Pro and Business: your firm name and logo on a portal of your own. The Free plan is a personal account on a shared site, without branding. Custom domain support is coming soon.
- What is the difference between ProjectSend open source and ProjectSend Cloud?
- ProjectSend is the open source project, with over 4.8 million Docker image downloads and 4,000+ active instances. ProjectSend Cloud is the official hosted version, run by the same team. You get the same software without managing a server, plus daily backups, updates, and support.
ProjectSend Team. Written by the people who build and maintain ProjectSend, the open source client file portal (since 2011), and run ProjectSend Cloud.
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- “Save this summary as a PDF and give me a private link for my client.”
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- How Law Firms Share Documents Securely
Small law firms share sensitive documents every working day. Here is how to handle it securely: client portals, audit trails, and no more email chaos.