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Browser verification

Verify content provenance in your browser.

Encypher Verify detects C2PA watermarks on any webpage so you can see who signed content, when, and whether it has been tampered with.

Works on Chrome, Edge, and Brave. Verification is always free.

How it works

Verify in three steps

No configuration needed. Install and start verifying immediately.

1

Install the extension

One click from the Chrome Web Store. Works on Chrome, Edge, and Brave.

2

Browse any page

The extension auto-detects C2PA watermarks and shows an indicator in your toolbar.

3

Click to see provenance

See who signed the content, when, and whether it has been modified since signing.

See the proof

See it in action

A visitor sees the verification badge, opens it, and sees provenance details.

Encypher Chrome extension verifying an image with C2PA provenance

Image verification

The extension detects a signed image and shows provenance details.

Encypher Chrome extension showing per-sentence verification badges and the provenance bar on a live article

Text verification

Signed text is detected automatically. Click the badge to see who signed it and when.

Encypher Verify popup listing every verified claim on the page with signer identity

Every claim, verified

The popup lists every signed text block and media element on the page, with signer identity and one-click locate.

Capabilities

What the extension does

Verify provenance anywhere on the web. Sign content when you have an account.

Verify on Any Page
Instantly check whether text on any webpage carries a valid C2PA watermark. Automatic detection, no manual steps.
C2PA Standard
Built on the C2PA text standard co-authored with Google, BBC, Adobe, Microsoft, and OpenAI. Verifies any compliant watermark.
Right-Click to Verify
Select any text, right-click, and choose Verify. Get provenance details including signer, timestamp, and integrity status.
Auto-Detect
The extension scans pages automatically and shows an indicator when signed content is found. No clicks required.
Works Everywhere
Chrome, Edge, Brave, and any Chromium-based browser. Works on news sites, blogs, social media, and any text-heavy page.
Sign from the Browser
Encypher account holders can sign selected text directly from the popup. Requires a free or paid Encypher account.

Plans

Free to verify. Simple to sign.

No account needed
Verify
Free
Verify provenance on any page, any time
  • Detect C2PA watermarks on any page
  • See signer identity and timestamp
  • Tamper detection
  • Right-click to verify selected text
  • Auto-scan on page load
  • Unlimited verifications
Install Free Extension
Free account
Verify + Sign
Free
Sign your own content from the browser
  • Everything in Verify
  • Sign selected text from the popup
  • Unlimited signing for normal publishing use
  • API key from Encypher dashboard
  • Your identity embedded in manifests
  • Upgrade for AI-output signing at scale
Create Free Account

Independent verification

Proof stays with the content

The extension detects signed content directly on the page and surfaces the signer, timestamp, and tamper status. Verification remains free, without an account.

FAQ

Frequently asked questions

Do I need an account to verify content?

No. Verification is completely free and requires no account. Install the extension and start verifying immediately.

What do I need an account for?

Signing content requires an Encypher account. Free accounts include unlimited signing for normal publishing use (fair-use guardrails apply) and 1,000 AI-output assets per month. Enterprise accounts add AI-output signing at scale and advanced features.

What browsers are supported?

Chrome, Microsoft Edge, Brave, and any Chromium-based browser. The extension is distributed through the Chrome Web Store and works on all Chromium browsers.

What is C2PA?

C2PA (Coalition for Content Provenance and Authenticity) is an open standard for content authentication developed with Google, BBC, Adobe, Microsoft, OpenAI, and others. Encypher authored the C2PA standard for unstructured text.

How does the extension detect watermarks?

C2PA text watermarks are embedded as invisible Unicode characters woven between visible text. The extension scans page content for these markers and extracts the embedded manifest for display.

Can I sign text I select on a webpage?

Yes. With an Encypher account configured in the extension settings, you can select any text on a page, open the popup, and sign it. The signed version can be copied and pasted anywhere.

Start verifying content today

Free to install. No account required to verify. Works on Chrome, Edge, and Brave.

Install from Chrome Web Store

Prefer a web-based tool?

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