Curtain

A browser extension that masks personally-identifiable information in B2B SaaS dashboards so you can demo, screenshot, and screen-share without leaking customer data. Open source under the MIT license.

Curtain is built and maintained by Texture and is the extension we use internally to make every demo safe. We're open-sourcing it because every B2B SaaS team needs the same thing.

Install

Works in Chrome, Arc, and any Chromium-based browser.

Option 1: Download and install (no build required)

1. Download the latest release and unzip.
2. Go to chrome://extensions (or arc://extensions in Arc).
3. Toggle Developer mode on (top-right).
4. Click Load unpacked and select the unzipped folder.
5. Click the Curtain icon in your toolbar to open the popup and configure.

Option 2: Build from source

git clone https://github.com/TextureHQ/curtain.git
cd curtain
yarn install
yarn --cwd extension build

Then follow steps 2–5 above, pointing "Load unpacked" at the extension/ directory.

What it does

Curtain replaces real customer data in your dashboard with deterministic fake identities — same seed = same fake person every time. It reads data-pii-type and data-pii-entity attributes on DOM elements and swaps the content.

<span data-pii-type="full-name" data-pii-entity="contact:ctc_abc123">
  Jane Doe
</span>

becomes Ana Garcia — reproducible, realistic, safe to screenshot.

Out of the box Curtain masks on *.texturehq.com, localhost, and file://. Add your own domains in the popup's "Allowed Domains" section.

Using the library (npm)

The data generation engine is published as a standalone npm package. Use it to build demo-safe tooling outside the extension:

import { CoreEngine, US_DEMOGRAPHICS_DEFAULT, US_ADDRESS_DEFAULT } from '@texturehq/curtain-core';
import { energy } from '@texturehq/curtain-industries';

const core = new CoreEngine({ demographics: US_DEMOGRAPHICS_DEFAULT, address: US_ADDRESS_DEFAULT });
core.registerIndustry(energy);

const id = core.generateIdentity('my-seed', 'contact:cus_abc123');
// { firstName, lastName, fullName, email, phone, address, organizationName, ... }

Architecture

@texturehq/curtain-core         engine: deterministic data generation API
@texturehq/curtain-industries   public industry packs (energy today, healthcare + fintech next)
extension                       the browser extension (Chrome MV3)

Identity attributes

Type	Example
first-name, last-name, full-name, initials	Names
email, phone	Contact info
avatar	Photo (replaced with AI-generated avatar)
address, city, state, postal-code, city-state, city-state-zip, coordinates	Location
organization-name, organization-domain, organization-logo	Company
program-name, device-name	Industry-specific

See extension/src/content/content.js for the full type → field map.

Contributing

We welcome industry contributions, bug fixes, and UI improvements. Start with CONTRIBUTING.md and the Industry Authoring Guide.

Security

Found a vulnerability? See SECURITY.md.

License

MIT. See LICENSE.