OpenCapture

Spec sheet

What it does

OpenCapture is a browser extension for capturing full webpages as a single image, then cropping, annotating, and exporting them.Read 11 Oct 2026 · opencapture.app

Support

Users can contact OpenCapture by email at [email protected] or open a GitHub issue.Read 11 Oct 2026 · opencapture.app

Browser availability

OpenCapture supports Chrome, Edge, and Firefox under Manifest V3.Read 11 Oct 2026 · opencapture.app

Capture modes

It supports full-page, visible-area, and selected-area captures.Read 11 Oct 2026 · opencapture.app

Data collection

The extension says it does not collect captured page content, browsing history, visited URLs, analytics, telemetry, crash reports, keystrokes, form data, passwords, or advertising identifiers.Read 11 Oct 2026 · opencapture.app

Editing and export

The editor supports cropping, drawing, text, shapes, blur, unlimited undo, and PNG or PDF export.Read 11 Oct 2026 · opencapture.app

Local processing

Captures are rendered and edited in the browser, and screenshots are not uploaded.Read 11 Oct 2026 · opencapture.app

Local storage

The extension stores up to the last 50 screenshots, save preferences, and a rating prompt flag in browser extension storage; uninstalling removes that data.Read 11 Oct 2026 · opencapture.app

Notable limitation

Tiled watermarks are the only paid feature; the other tools are free.Read 11 Oct 2026 · opencapture.app

Open source

The core extension is licensed AGPL-3.0-or-later, while the watermark module is a separate proprietary component.Read 11 Oct 2026 · opencapture.app

Sign-in and payment

Sign-in is needed only for the Supporter watermark, and payments are handled by a payment processor on the account server rather than inside the extension.Read 11 Oct 2026 · opencapture.app

Sign-in options

The stated sign-in options are Google, a crypto wallet using SIWE, and Nostr.Read 11 Oct 2026 · opencapture.app

Plans and prices

Every OpenCapture plan and price →

Where Specifiction places it

• Screen Capture Software#29 of 617.8