Glasp

What is Glasp?

Glasp is a research highlighter and drafting surface for writers that stores collected passages alongside their source, author, URL, and date. It lets users draft text using OpenAI GPT or Anthropic Claude grounded in their own saved material rather than the open web. Access requires installing a browser extension on a desktop computer or using the mobile app.

What are the features of Glasp?

• Web, PDF, video, and book highlighting

  Collects passages from web pages, PDFs, YouTube videos with timestamps, and Kindle books, attaching the source metadata to each highlight.
• Source-grounded AI drafting

  Generates text using OpenAI GPT or Anthropic Claude based on the user's saved highlights as input instead of general web data.
• Research import

  Brings existing highlights into the library from Kindle, Pocket, Medium, Instapaper, Readwise, Hypothesis, Diigo, Raindrop, and Weava.
• Export options

  Sends notes to Notion, Obsidian, Roam Research, and mem.ai, or downloads them as Markdown, HTML, CSV, plain text, or JSON.
• Library search and chat

  Answers questions across all saved highlights with source attribution, and supports full-text search and tag filtering.
• MCP connector

  Connects the Glasp highlight library to external AI tools like Claude and ChatGPT for drafting.

What are the use cases of Glasp?

• Drafting cited articles

  Writers compose text using AI models restricted to their own highlighted passages, keeping source links attached for citation.
• Resurfacing past research

  Users query their entire saved library before starting a new piece to find relevant quotes and sources they already collected.
• Publishing with evidence

  Authors publish posts directly from Glasp with the underlying highlights attached so readers can trace the argument to its sources.

How to use Glasp?

1. Install the extension

   Add the Glasp extension to a supported desktop browser (Chrome, Safari, Edge, or Firefox) and create an account.
2. Collect passages

   Highlight text while reading articles, PDFs, YouTube videos, or Kindle books, and apply tags as needed.
3. Filter the library

   Search or filter saved highlights by tag, source, or author to gather the material for a specific piece.
4. Draft with AI

   Use ChatGPT or Claude to write on top of the selected passages, generating text grounded in the saved sources.
5. Export or publish

   Send the finished draft and highlights to Notion or Obsidian, download as a file, or publish as a Glasp post.

Glasp Pricing Information:

• Free account

  Includes a free monthly AI quota with no credit card required.
• Paid plans

  Higher limits available for users who write extensively; specific prices are not stated in the source.
• Student plan

  Free plan available for university students.

Glasp Contact Email:

hi@glasp.co