Microsoft 365 · managed browser policies · private AI

Enterprise AI writing. Your data, your approved AI.

Give employees grammar, tone and translation tools in Outlook, Teams and web editors. Send text directly to the AI provider your organization chooses — without a LinguAIst processing backend.

Discuss a team rolloutSee how data flows →
No LinguAIst processing backendManaged provider choices
Example: improve a draft email
1. Select a sentence in your editor

I has reviewed the proposal and have two question.

2. Choose Grammar · review the result

I has have reviewed the proposal and have two question questions.

3. Accept to replace your selectionor Copy
Illustrative example. You choose the action and review the AI’s response.
MV3 Chromium-based browsersReview security documentation on requestMDM managed policy support
Why LinguAIst

Control where corporate text is processed.

Give employees a defined writing workflow connected to the providers your organization approves. Review the processing path before deployment.

Alternative pathA tool with a vendor backend
Employee browserEmployee→Writing tool
→sent to
Extension vendor's serversWhen a writing tool routes text through its own backend, that service becomes an additional part of the processing path to assess.
Unmanaged pathCopy & paste into personal AI
Employee browserEmployee→Copy text→Personal chat app
→sent to
AI client's serversText copied into a personal AI account may fall outside your organization’s approved services and account controls.
With LinguAIstDirect to your selected provider
Approved processing pathEmployee selects text→LinguAIst→Microsoft 365 CopilotApproved custom endpointYour own LLM server
⊘nothing
sent
LinguAIst serversThere is no LinguAIst backend that receives your text.

Your IT team selects permitted providers and reviews the relevant service agreements. Approved cloud AI still processes text outside the browser; use your own endpoint when your policy requires infrastructure you control.

How it works

Better writing in three clicks, on the page where your team already works.

Select text

Select a draft in Outlook, Teams, Gmail or a supported web editor. Translation also works on selected webpage text.

Pick an action

Fix grammar, business tone, shorten, translate — or add your own instruction.

Review & accept

Changes are highlighted. Copy the result or replace the original text in one click.

Built for Microsoft 365

Connect your existing Microsoft 365 identity.

Use Microsoft 365 Copilot with work or school sign-in. No separate LinguAIst user account is required. Confirm account eligibility, licensing, tenant policy and Conditional Access as part of your rollout.

0
Browser sign-in

Connect using your existing work or school identity. Tenant policies can affect availability and consent.

ID
Existing identity

Work or school account sign-in with PKCE and silent token refresh.

AI
Existing AI

Use Microsoft 365 Copilot when it meets your requirements, or configure another approved provider or private endpoint.

⚙
MDM ready

Pin provider and tenant for every managed browser profile.

LinguAIst is an independent product and is not affiliated with or endorsed by Microsoft. Microsoft 365 and Copilot are trademarks of Microsoft Corporation. Availability depends on your Copilot licensing and tenant policies, including Conditional Access.

Approved AI

Bring the AI your security team has already signed off.

LinguAIst is the writing layer, not the model. Connect the provider your policy allows.

Recommended for M365

Microsoft 365 Copilot

Work and school accounts with Entra ID sign-in.

  • Existing Copilot licensing
  • Tenant-scoped sign-in
  • No extra account
Eligible plans · experimental

ChatGPT plan

Experimental browser sign-in for eligible accounts. Validate workspace access and requirements before adopting it for your organization.

  • Account and workspace eligibility
  • No separate API key to manage
  • Subject to plan eligibility
Private AI

Your own LLM server

Point LinguAIst at any OpenAI-compatible endpoint you control.

  • Self-hosted or private cloud
  • Custom connection in Settings
  • Text stays on your infrastructure
For IT & Security

Deploy once. Control centrally.

  • Allow-list providersRestrict which provider connections are available in LinguAIst. Account and tenant restrictions depend on the selected provider and configuration.
  • Preselect the defaultPreselect your organization’s provider for new managed profiles. Provider sign-in or credentials may still be required.
  • Configure through your MDMApply managed browser settings through Intune or Group Policy, according to your browser management setup.
  • Prepare your security reviewArchitecture, data-flow and permission documentation for your assessment.
ROADMAPCompany branding, custom prompt library and per-feature policies. Tell us what you need →
managed-policy.jsonchrome.storage.managed
{
  "allowedProviders":  ["m365-copilot"],
  "defaultProviderId": "m365-copilot",
  "m365TenantId":      "contoso.onmicrosoft.com",
  "m365Scenario":      "included"
}
Who it's for

One rollout. Three teams get what they need.

CISO & Compliance

A direct processing path to assess.

No LinguAIst processing backend receives your text. Review the configured AI provider and its data terms against your requirements.

Read the security FAQ →
IT administrators

Policy-managed from day one.

Allow-list providers, preselect defaults and configure tenant settings through your existing browser management setup.

See the policy schema →
Employees

Write better where you already work.

Grammar, tone and translation inside Outlook, Teams and web apps — in 12 interface languages.

See how it works →
The product

Writing assistance your employees can use in their existing workflow.

  • Six presets: spelling, grammar, improve writing, business tone, shorten, translate
  • Highlighted changes with a Show changes toggle
  • Refine with your own instruction, then Accept to replace the text
  • Optional page context for replies; one setting turns it off
OutlookTeamsGmailWeb CRMsInternal web apps

Business tone

Original

Send me the updated file. I need it to finish the review.

Business tone

Could you please send me the updated file so I can complete the review?

Illustrative inputs and outputs. Actual results depend on your AI provider and model.

ROADMAP

LinguAIst Desktop. Beyond the browser.

In development · Coming soon

Desktop app

Windows & macOS

Native apps for Windows and macOS, available for ARM64 and x64.

Beyond browser tabs

Most of your apps

Translate and improve your writing in Outlook, Teams, Word, PowerPoint and most other desktop apps. Compatibility may vary by application.

Use your own AI

Same AI providers

The same AI provider choices as the extension, with a familiar translation and writing workflow.

Pricing

Licensing that scales from one team to the whole organization.

Free for personal use. Organizations license per seat or as a package — pick a size, then add what you need.

Personal
Free

For individuals, with your own AI account.

  • Translate & improve inline
  • Bring your own AI
  • Community support
Install
Team
Per seat

10–99 seats. Start small, add seats any time.

  • Seats billed individually
  • Managed policy (MDM)
  • Email support
Talk to sales
Business
Seat packs

100–999 seats in 100 / 250 / 500 / 1000 packs.

  • Volume pricing per pack
  • Priority support & onboarding
  • Security review pack
Talk to sales
Enterprise
Custom

1000+ seats or custom terms.

  • Volume agreement
  • SLA & dedicated contact
  • Custom project scoping
Talk to sales
Discuss additional services
White-label

Discuss a branded version with your name, logo and preset defaults.

Custom features

Your own presets, prompts and adapters for internal web systems.

Support & SLA

Priority response, named contact and guaranteed response times.

Integration & adaptation

Entra, Intune/GPO packaging, internal LLM gateways and compatibility testing.

Security FAQ

The questions your security review will ask.

Does a LinguAIst server receive our text?

No LinguAIst processing server receives submitted text or page content. Requests go directly from the browser extension to the AI provider your organization configured. The extension keeps no translation history.

Can we restrict providers and tenant settings?

The allowedProviders policy limits provider choices within LinguAIst. Microsoft 365 tenant settings can scope its sign-in. A provider allow-list alone does not distinguish personal and business accounts at the same provider; assess account controls separately.

What does the extension send, exactly?

The text you select and the instructions for the chosen action. For writing improvement, limited surrounding context can be included; one setting turns it off. Provider-side retention and training are governed by your agreement with that provider.

Why does it need access to all websites?

To work in any editor your team uses, from Outlook to internal tools. Broad access does not mean pages are uploaded; text is sent only when an employee triggers an action.

What do we get for our security review?

An architecture and data-flow overview, a permission-by-permission justification and a public privacy policy.

How is LinguAIst licensed for organizations?

LinguAIst is free for personal use. Organizations license it per seat or as a package, with options for white-label, custom features, support and integration with your corporate services. Your AI provider's own licensing and usage terms apply separately. Talk to sales →

Better writing for employees. A defined data path for IT.

Discuss approved providers, browser management and security requirements for your organization.

Contact salesInstall for personal use
Per-seat and package licensing for organizations · No LinguAIst account