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Scan invoices from Gmail, analyze contracts, and chat with any PDF — all in one AI-powered browser sidepanel. Powered by DokuBrain. DokuBrain for Chrome brings AI-powered document intelligence directly into your browser. Extract data from invoices, analyze contracts, chat with PDFs, and save everything to your DokuBrain document corpus — without switching tabs. WHAT IT DOES • Gmail attachment detection — Open an email and the sidepanel automatically detects attachments. Extract invoice fields or send documents to DokuBrain in one click. • PDF analysis — Navigate to any PDF in Chrome and instantly extract structured data: vendor names, amounts, dates, line items, and more. The AI classifies the document type and returns editable fields with confidence scores. • Chat with documents — Ask natural-language questions about the current PDF or across your entire DokuBrain corpus. Get cited answers referencing specific documents and pages. • Page capture — Capture text from any webpage and extract structured data or save to your corpus. • File upload — Drag and drop files directly from the sidepanel. Supports common document formats up to 50 MB each. KEY FEATURES • Context-aware sidepanel that adapts to what you're viewing • AI-powered document classification and field extraction • Editable results with confidence scoring • Export extraction results as JSON • Organize documents into DokuBrain projects • Conversation history with search and project filtering • Credit balance tracking GETTING STARTED Install the extension and click the DokuBrain icon in your toolbar Sign in with your DokuBrain account, create a new account, or connect with an API key Navigate to a PDF, Gmail, or any webpage Use the sidepanel to extract data, chat, or save documents PRIVACY • Only accesses Gmail pages to detect email attachments — does not read email content • Documents are processed through DokuBrain's secure API • Authentication tokens are stored in encrypted session storage • No data is sold or shared with third parties Requires a DokuBrain account. Create one for free at https://dokubrain.com
Apr 20, 2026
rating_count is the Chrome Web Store ratings count, not a written-review count.
Media assets
Screenshots and videos on the listing.
Has promo video
Whether the listing includes at least one video.
Languages
Declared language locales.
Developer website
Listing exposes a developer website URL.
Contact email
Listing exposes a contact email.
Keyword in name
Case-insensitive substring match in the name.
Keyword in description
Case-insensitive substring match in the description.
Keyword occurrences in description
Count of case-insensitive occurrences in the description.
Category user-count percentile
Share of same-category extensions with fewer users (null if unknown).
These are transparent listing completeness / keyword signals, not a prediction of Chrome Web Store search ranking.