Best Glasp Alternatives in 2026

Readwise Reader is the direct upgrade path from Glasp. It captures articles, PDFs, newsletters, and Twitter threads into one inbox, lets you highlight all of them, and then resurfaces those highlights on a spaced-repetition schedule so you actually retain them. Its Ghostreader AI summarises and answers questions over what you have saved. You lose Glasp's social discovery layer and gain a far stronger capture-and-review loop.

Glasp stores your highlights on its servers and syncs them out to Notion. Obsidian inverts that: everything is plain markdown on your own disk, with bidirectional links and a graph view on top. With a web clipper and one of the 1,700+ community plugins you can rebuild Glasp's capture flow while keeping the archive permanently yours — no vendor, no subscription required.

Heptabase is the pick when the problem is not capturing highlights but understanding them. Notes become atomic cards you arrange on infinite whiteboards, so a research topic becomes a visual map rather than a list. PDF annotation happens directly on the canvas. It is the most opinionated tool here and the only one without a free tier.

The failure mode of any highlighter is a library you never revisit. Mem's answer is to remove filing entirely: notes and captures self-organise, and AI search surfaces the right one when you need it. Smart Write drafts from your existing notes, so past highlights feed directly into new work rather than sitting in an archive.

Recall AI applies Glasp's premise — capture it, make it searchable, connect it — to meetings rather than web pages. It auto-joins Zoom, Meet, and Teams calls, generates summaries and action items, and builds a searchable knowledge graph across every past conversation. If a meaningful share of what you need to remember is said aloud rather than written down, this covers the gap Glasp cannot.