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Head-to-head · AI Video Summarizers

Glasp vs Synop

  • Updated Oct 2026
  • Both researched from official sources
  • 5 checks side by side
Higher score Glasp #1 in AI Video Summarizers 8.9/10 Free plan Free plan✓ 4 of 4 features Visit Glasp
Synop #8 in AI Video Summarizers 7.6/10 Free plan Free plan✓ 3 of 4 features Visit Synop

Glasp leads on 0 checks, Synop on 0, and 5 are even. Who comes out ahead on the 5 yes/no, price and count checks where we have data for both products. The editor score weighs everything else too.

Our verdict

  • Highest scoreGlasp · 8.9/10
  • Free planboth
  • Most featuresGlasp · 4 of 4

Glasp scores higher on our rubric for ai video summarizers: 8.9 against 7.6 out of 10; our editors rank them #1 and #8.

Glasp is the better fit for broad, flexible video and audio summarization. Synop is the better fit for self-hosters who want advanced YouTube analysis.

  • Glasp fits best

    Broad, flexible video and audio summarization

  • Synop fits best

    Self-hosters who want advanced YouTube analysis

Advertiser disclosure: iTechGuides is reader-supported. Vendors can pay for top positions in our rankings and for a place on other products' pages, and we may earn a commission when you click some links. Bought places stand at the number bought; this page and our disclosure say so. Paying vendors may get a fuller, more detailed review from our editors, and that review can change their score. How we rank.

Side by side

Feature Glasp 8.9/10 Visit ↗ Synop 7.6/10 Visit ↗
At a glance
Editor score 8.9 7.6
Ranking #1 in AI Video Summarizers #8 in AI Video Summarizers
Best for Broad, flexible video and audio summarization Self-hosters who want advanced YouTube analysis
Pricing model Free plan + paid Free
Starting price — Free plan
Free plan ✓ ✓
Free trial — —
Deployment Cloud, Mobile, Browser extension Cloud, Self-hosted
Platforms Web, Chrome extension, iOS, Android Web
Support Email, Community, Docs Community
Integrations 12 integrations 11 integrations
Built for Solo, Small business Solo, Small business
Features Glasp 4/4 · Synop 3/4
YouTube support ✓ ✓
Video uploads ✓ (best) Not checked yet
Transcript output ✓ ✓
Chapter generation ✓ ✓
Specs
Maximum video length Not checked yet Not checked yet
Input sources YouTube video links; local audio files YouTube videos, YouTube playlists, YouTube channels
Our review
Pros
  • Supports YouTube summaries, timestamped transcripts, and adjustable prompts
  • Transcribes and summarizes uploaded audio files and PDFs
  • Exports to Notion, Obsidian, Markdown, CSV, and JSON
  • Structured notes combine insights, actions, quotes, and speaker analysis.
  • Study mode adds flashcards, quizzes, spaced repetition, and Anki decks.
  • Local-first storage supports self-hosting and bring-your-own AI keys.
Cons
  • Free YouTube summaries are limited to the basic level
  • Private highlights and advanced summaries require a paid plan
  • Priority support and unlimited PDF summaries are limited to Unlimited
  • AI-provider costs are separate under the bring-your-own-key model.
  • Self-hosting requires a Node.js setup.
  • Its input focus is YouTube videos, playlists, and channels.
Our verdict

Glasp is a social web and PDF highlighter with AI summaries, transcripts, chat, and knowledge organization. It is designed for researchers, students, writers, and lifelong learners who want to turn YouTube videos, local audio files, PDFs,…

Read the review →

Synop is an open-source AI video summarizer for people who want more than a short recap of a YouTube video. It turns videos into structured notes with insights, actions, quotes, topic clusters, and multi-speaker debate analysis. Students…

Read the review →
  1. GlaspAI Video Summarizers 8.9Free plan
  2. SynopAI Video Summarizers 7.6Free plan

Strengths and trade-offs

  • Glasp — where it wins

    • Supports YouTube summaries, timestamped transcripts, and adjustable prompts
    • Transcribes and summarizes uploaded audio files and PDFs
    • Exports to Notion, Obsidian, Markdown, CSV, and JSON

    Where it doesn't

    • Free YouTube summaries are limited to the basic level
    • Private highlights and advanced summaries require a paid plan
    • Priority support and unlimited PDF summaries are limited to Unlimited

  • Synop — where it wins

    • Structured notes combine insights, actions, quotes, and speaker analysis.
    • Study mode adds flashcards, quizzes, spaced repetition, and Anki decks.
    • Local-first storage supports self-hosting and bring-your-own AI keys.

    Where it doesn't

    • AI-provider costs are separate under the bring-your-own-key model.
    • Self-hosting requires a Node.js setup.
    • Its input focus is YouTube videos, playlists, and channels.
  • Glasp8.9/10 · Free plan

    A flexible summarizer for YouTube, audio files, PDFs, transcripts, and saved research.

    Visit GlaspFull verdict →
  • Synop7.6/10 · Free plan

    A local-first YouTube summarizer with study tools, transcript chat, and knowledge-base sync.

    Visit SynopFull verdict →

More comparisons

All AI video summarizers comparisons → · Full ranking →

Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

Last updated · How we research and update