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Writing assistantsAvailable

BLUF

Browser extension for summarizing and explaining online content

BLUF is a browser extension that summarizes, explains, and answers questions about websites, PDFs, YouTube videos, and local files. It gives readers a short route into long or complex material through right-click, toolbar, and keyboard-shortcut controls.

BLBLUFProduct screenshot pending
Best for
Researchers reviewing academic papers
Pricing signal
Free
Primary category
Writing assistants
Last verified
Jul 30, 2026

The decision

Should BLUF make your shortlist?

Start with the job, the team, and the constraints. Product fit becomes much clearer when those three line up.

Strongest fit

Who it is built for

  • Researchers reviewing academic papers
  • Students learning complex concepts
  • Busy professionals summarizing reports and articles
Practical use cases

Jobs it can take on

  • Summarize a web article or PDF
  • Explain a complex concept in simpler terms
  • Ask follow-up questions about a YouTube video
Before you choose

Know the tradeoffs

  • The free plan includes 25 prompts per month and processes up to 20,000 words per page.
  • BLUF is currently available on Chrome and Firefox, while other browsers are listed as coming soon.
  • BLUF sends prompt contents to OpenAI to complete requests.

Inside the product

What you can actually do with it.

The core product capabilities, grouped around the work they enable.

Content summaries

Extracts key highlights from websites, documents, videos, and local files.

Concept explanations

Turns complex documents and technical language into easier-to-read explanations.

Follow-up questions

Lets users ask questions to explore specific points in the content further.

Typical workflow

Open a website, PDF, or YouTube video, then activate BLUF from the context menu, toolbar, or Shift + Alt + B. Choose summarize or explain, then ask follow-up questions about the content.

Plans and official links

Plans and accessFree.

See the entry price, free access options, company details, and direct vendor destinations in one place.

Choosing for a real workflow?

Make the tool work with the rest of your operation.

We map the workflow, connect existing systems, choose what to buy, and build what is missing.

Discuss your workflow