Glasp

2M+ users per vendor; free web/PDF/Kindle highlighter with a social discovery layer of other users' highlights

What Glasp does

  • 2M+ users per vendor; free web/PDF/Kindle highlighter with a social discovery layer of other users' highlights
  • AI YouTube-summary feature using ChatGPT/Claude alongside its core highlighting product
  • Cross-browser support (Chrome, Firefox, Edge, Safari, Brave, Opera)

Glasp — straight answers

What is Glasp?

Glasp is listed under YouTube & Content Summarizers, in the Research & Learning category on Flocci AI Tools. 2M+ users per vendor; free web/PDF/Kindle highlighter with a social discovery layer of other users' highlights. It is freemium — a usable free tier with paid plans above it, and it lives at glasp.co.

Is Glasp free?

Glasp is freemium: there is a free tier you can work in and paid plans above it. It is one of 426 freemium tools in the catalog, all labelled the same way so you are never surprised by a paywall.

Can I use Glasp in a browser, or is there an app?

Glasp works in a normal browser tab with no install. It is available on the web and a Chrome extension.

What can Glasp do?

Glasp does 3 things the catalog singles out: 2m+ users per vendor; free web/pdf/kindle highlighter with a social discovery layer of other users' highlights; ai youtube-summary feature using chatgpt/claude alongside its core highlighting product; cross-browser support (chrome, firefox, edge, safari, brave, opera).

What is the best free alternative to Glasp?

NoteGPT is the closest free alternative: it sits in the same YouTube & Content Summarizers sub-category and is free tier + paid plans. Recall also start free. The full list is on the alternatives page.

See the full list →

NoteGPT

YouTube & Content Summarizers
freemium
  • 400,000 active Chrome Web Store users as of Jul 2026, ~12,683 ratings at 4.0/5
  • Batch-summarizes up to 20 videos at once, works even on videos without captions
  • Bundles summaries with flashcards, mind maps and slide generation, not just text output

Eightify

YouTube & Content Summarizers
trial
  • Summarizes YouTube videos up to 10 hours long in ~5 seconds
  • Translations/summaries in 40+ languages
  • Uses both Claude and GPT models under the hood per vendor

Recall

YouTube & Content Summarizers
freemiumNew
  • Summarizes YouTube videos, articles and PDFs into a linked knowledge graph
  • Free forever plan: 10 AI summaries per month, unlimited saving and notes
  • API and MCP access even on the free plan
  • No credit card required

Perplexity

AI Search & Answer Engines
freemium
  • Cited, real-time answers (1B+ queries/quarter)
  • Focus modes and file uploads
  • Comet browser and Spaces
  • Strong free tier

ChatGPT Search

AI Search & Answer Engines
freemium
  • Real-time web answers inside ChatGPT
  • Inline citations and follow-ups
  • Combines search with reasoning
  • Available on the free tier

Grok DeeperSearch

AI Search & Answer Engines
freemium
  • Live search across X and the open web
  • Best for breaking news and trends
  • Reasoned, sourced summaries
  • Free daily queries

Head-to-head comparisons