Messages that stay between participants
Exchange end-to-end encrypted one-to-one messages with a client, colleague or partner.
Private MessagingPrivate conversations.
Private conversations.
Easy to join.
Encrypted messages, documents, voice and video. Invite clients and partners through a browser link — no guest account or app installation.
✓ One-to-one conversations✓ Browser guest access
Calls on supported clients. Plan and guest usage limits apply.
Your app. Their browser.
One private conversation.
One private conversation.
Private messaging
Voice calls
Video calls
Encrypted content
Built for the conversationMessage. Share. Call.
Message. Share. Call.
Keep the work moving.
The everyday communication tools you need, with encrypted content and a simple way for external people to join.
Files inside the conversation
Exchange encrypted documents, photos and supported attachments without losing the context.
Talk it through
Move to an encrypted voice call on supported clients when a quick conversation helps.
Meet face to face
Use encrypted video on supported devices and browsers when you need to see each other.
Invite people outside your organization
A browser guest link connects your invited visitor with its owner. No guest app or account.
Decide when an invitation ends
Set guest-link expiry and revoke further access when the conversation is finished.
Control · Provenance · Private communication
Private communication. Verifiable work. More control.
Keep client conversations connected to signed records, clear provenance and the deployment choices your organization needs.
Digital sovereignty
Choose where your work lives.
Supported dedicated and customer-operated deployment, with configured storage destinations for your records.
Explore deployment choicesDisinformation security
Give reviewers something they can check.
Signed evidence and case history help reviewers inspect origin and detect later changes.
See Proof RequestsDigital provenance
Keep the history with the record.
Supported evidence exports and eligible JPEG Content Credentials make provenance easier to inspect.
Check a recordConfidential communications
Keep private content with participants.
End-to-end encryption for supported content, plus a choice of AI provider or local-network processing.
Understand the privacy modelExplore a concrete client workflow, from a private conversation to a reviewable record.
For organizationsGuest links
One link starts the conversation.
A straightforward invitation for the people you work with.
Create an invitation
Prepare a guest link for the person you want to contact, with the access options you need.
Send the link
Your guest opens the invitation in a supported browser. No guest account or installation.
Continue the conversation
Exchange messages and files, with voice or video where enabled for the invitation.
Everyday work
A private place for the details.
Explain a document.
Answer the next question.
Keep a client conversation and its shared files together as the work progresses.
Reach the person
who can move it forward.
Talk with a customer, tenant or contractor about the details of a visit or request.
Bring an external
person into the conversation.
Invite a supplier or partner through their browser, alongside your StateNull work processes.
Privacy & trustExplore security & the Trust Center ↗
Privacy, clearly explained.
Understand what is protected and what information the service still needs to operate.
Content protected between participants
Messages, shared files and supported call media use end-to-end encryption. StateNull still processes operational metadata, including participants and connection times.
Does a guest need to install the app?
No. For guest conversations, the invited person can use a supported browser without installing an app or creating an account. Browser, device and service limits apply.
Can I end access to a guest conversation?
You can set an expiry or revoke the guest link. That stops further access through the link. Retention is managed separately; revocation cannot remove copies already saved by a participant.
Which devices and features are supported?
Use the currently supported browsers and released app versions. Check your required devices before a rollout. Group-chat readiness and feature availability across clients require a separate review.
What about organizational requirements?
Review hosting, identity, retention, support and security documentation for your intended use. SSO and self-hosted deployment require an agreed configuration and acceptance review. StateNull is not independently security-audited today.
StateNull Private Messaging
Give your next conversation a private place.
Start with a message. Share the document. Talk when it helps.