Backdrop vs. Glasp
Highlighting with archival completeness.
Save the context behind every highlight.
Glasp is a modern browser extension that lets you highlight and organize web content, including YouTube transcripts. It offers AI-powered summaries and a social layer where you can follow other curators and discover popular highlights. Glasp excels at extracting and sharing highlights, but it doesn't archive the full page — your highlights reference the live URL, which can break. Backdrop preserves the entire page in four formats, with your highlights embedded in a permanent, searchable archive.
Feature comparison
| Feature | Backdrop | Glasp |
|---|---|---|
| Permanent page storage Glasp saves highlights, not full pages | ||
| Multi-format capture Backdrop: 4 formats. Glasp: text highlights | ||
| Full-text search Glasp searches your highlights | ||
| Highlights Glasp specializes in highlighting | ||
| Entity tagging | ||
| Organized collections Glasp uses topics and tags | ||
| AI summaries Both offer AI-powered features — Backdrop AI chat, Glasp AI summarization | ||
| YouTube annotation Glasp highlights YouTube transcripts | ||
| Social discovery Glasp has social/community features | ||
| Browser extension Both offer browser extensions |
Backdrop wins here
Where Backdrop is the stronger choice
- Full page archives preserve the complete context of every highlight — nothing gets lost
- Four capture formats ensure you always have the right format for any use case
- Full-text search across all archived content, not just highlights
- Entity tagging provides structured discovery of people, organizations, places, and topics
- Highlights are permanently embedded in the archive, surviving page changes and removal
Glasp wins here
Where Glasp might be a better fit
- Excellent YouTube transcript highlighting — unique among annotation tools
- AI-powered summaries help quickly process and review saved content
- Social features let you follow curators and discover popular highlights
Pricing
Backdrop
Free tier with 100 archives. Paid plans start at $5/month for unlimited archiving, full-text search, and priority processing.
Start freeGlasp
Free tier with unlimited highlights. No paid plans currently — supported via donations and grants.
Verdict
Glasp is an innovative tool with unique strengths, especially its YouTube transcript highlighting and AI summarization. The social curation layer adds a dimension that Backdrop doesn't replicate. But Glasp highlights exist independently of the pages they reference — if a page changes, your highlight loses context. Backdrop ensures every highlight is permanently tied to a preserved copy of the original page. For users who want both selective highlighting and the safety net of complete page preservation, Backdrop is the more comprehensive solution.
Highlight with permanent context
Every highlight preserved with the full page archive. Free to start.
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