Glasp Review 2026: Pricing, Features, Pros and Cons
Glasp gives away more on its free plan than most highlighters give away on a trial. That is not generosity, it is architecture: free highlights are public, and public highlights are the product. Whether that is a bargain or a dealbreaker is the entire review.
Verdict: the best free highlighter, if your reading is public-safe
Capture is fast, the library is searchable, and the social layer is a real discovery channel rather than a bolted-on feed. The pricing is honest about what it gates — privacy and automation, not function. But $12.50/mo is a serious price for private highlighting, and anyone reading work material has no free option here at all.
Glasp Pros & Cons
✓ Pros
- ✓Free plan is a real product: unlimited public highlights, no card required
- ✓Works on web pages and PDFs, so one habit covers both reading modes
- ✓Searchable library turns scattered highlights into something you can query
- ✓Daily auto-sync to Notion removes the export step that kills note habits
- ✓AI chat over your own library, not over a generic corpus
- ✓Following other people's highlights is a genuinely useful discovery channel
- ✓Annual billing saves two months on both paid tiers
✗ Cons
- ✗Free highlights are public — no private option without paying
- ✗$12.50/mo is steep for what is, functionally, privacy plus a sync job
- ✗Unlimited at $30/mo is hard to justify unless you highlight constantly
- ✗Notion-centric automation; other note tools are second-class
- ✗Discovery layer depends on other people using it — value varies by niche
- ✗Not a spaced-repetition tool, so highlights still need a review habit
What Is Glasp?
Glasp is a browser-based highlighter for web pages and PDFs with a personal library behind it. You highlight as you read, add notes, and everything lands in a searchable collection you can export or push to Notion. So far, so familiar. The difference is that highlights are treated as a public knowledge layer by default: yours are visible, other people's are visible to you, and following a specific reader means seeing what they mark up across the web.
That design decision explains everything about the pricing. The free tier is not a limited trial — it is unlimited highlighting, because your highlights contribute to the shared layer. What you buy on Pro is the right to opt out of that, plus the automation that makes the library maintenance-free. It is a coherent model and, unusually, an honest one: nothing about the core function is crippled to force an upgrade.
It also means the buying decision is unusually binary. Read mostly public material — articles, papers, blogs, documentation — and Glasp is arguably the best free tool in its category. Read anything under NDA, anything client-specific, or simply anything you would rather not broadcast, and the free plan is not a cheaper option, it is not an option, and you should evaluate Pro against Readwise directly rather than starting free.
Key Features
1. Web and PDF Highlighting
One capture surface across both formats, which matters more than a feature list suggests: most people's reading is split between articles and PDFs, and split capture is the usual reason a highlighting habit collapses. Everything landing in one library is what makes the habit survive contact with a busy week.
2. Public Highlights & Following
The distinguishing feature. Following readers whose judgement you trust surfaces material no algorithmic feed would show you, because someone bothered to mark it. Value scales with how many people in your niche use the tool — strong in tech, research and startup circles, thinner elsewhere. Check whether anyone you would follow is already there before weighting this heavily.
3. AI Chat Over Your Library
Paid tiers include access to chat models pointed at what you have actually collected. The useful framing is retrieval, not generation: asking "what have I saved about pricing experiments" against six months of highlights beats scrolling, and it is a meaningfully better question than asking a general model the same thing.
4. Daily Notion Auto-Sync & Export
The quiet reason to pay. A library that requires a manual export is a library you eventually stop trusting as the source of truth. Scheduled sync means highlights arrive where your notes already live without anyone remembering to move them — and it is the difference between a reading habit that compounds and one that just accumulates.
Who Glasp Suits
Researchers & Students
Papers as PDFs, sources as web pages, all captured into one searchable library with citations retrievable later.
Writers & Newsletter Operators
A running evidence file for pieces in progress, plus a discovery channel via other people's public highlights.
Notion-Centric Note Takers
If Notion is already the system of record, daily auto-sync is the feature that justifies Pro on its own.
Not: Confidential Reading
Client documents, internal memos, anything under NDA. Free is public-only, so budget for Pro from day one or choose another tool.
Glasp Pricing (2026)
| Plan | Monthly | Annual | What You Get |
|---|---|---|---|
| Free | $0 | $0 | Unlimited public highlights, searchable library, no credit card required |
| Pro | $12.50/mo | $150/yr | Private highlights, chat models, daily auto-sync and export to Notion |
| Unlimited | $30/mo | $360/yr | Unlimited private highlights for heavy, privacy-sensitive volume |
Annual billing is a genuine two-months-free discount on both tiers — $150 against a $180 monthly-equivalent on Pro, $360 against $432 on Unlimited. Start monthly on Pro for a month to confirm the sync actually holds, then switch.
Glasp vs. Readwise vs. Obsidian
| Dimension | Glasp | Readwise | Obsidian |
|---|---|---|---|
| Primary job | Capture & discovery | Capture & retention | Authoring & linking |
| Free tier | Full, but public | Trial | Free for personal use |
| Social layer | ✅ Core | ❌ | ❌ |
| Spaced repetition | ❌ | ✅ | Via plugins |
| Where data lives | Hosted | Hosted | Local files |
These are complements more often than substitutes: Glasp for capture, Obsidian for what the highlights become. Compare the Readwise entry if retention is your actual failure mode.
Frequently Asked Questions
What is Glasp?
Glasp is a highlighter for web pages and PDFs that treats highlights as a shared knowledge layer rather than private annotations locked inside one reader. You highlight and note as you read, everything accumulates into a searchable personal library, and that library can be exported or auto-synced to Notion on a daily schedule. Public highlights are visible to others, so following specific people turns a curation habit into a discovery channel.
How much does Glasp cost in 2026?
The free plan is $0 with unlimited public highlights and no credit card required. Pro is $12.50/month or $150/year billed annually — against a $180 monthly-equivalent, so annual billing saves two months. Unlimited is $30/month or $360/year against a $432 monthly-equivalent. Pro adds private highlights, chat models over your library, and daily auto-sync or export to Notion; Unlimited raises the private-highlight cap.
Is Glasp's free plan actually usable?
Yes — genuinely, and unusually so for this category. Unlimited highlighting, a searchable library, and manual export all work on $0. The catch is not a volume limit but a visibility one: free-tier highlights are public. If everything you read is public-safe, the free plan is a complete product rather than a trial. If any of it is not, the free plan is unusable at any volume and Pro is mandatory.
Glasp vs Readwise — which is better?
Readwise is built around retention: it ingests highlights from many sources and resurfaces them via spaced repetition, and its integration surface is broader. Glasp is built around capture and discovery — highlighting in the browser and on PDFs, with a social layer Readwise has no equivalent to. If the failure mode you are fixing is 'I highlight and never see it again', Readwise addresses that more directly. If it is 'highlighting is friction and I want to find what smart people are marking up', Glasp does.
Does Glasp sync to Notion automatically?
Daily automatic sync and export to Notion sit on the paid tiers. This matters more than it sounds: manual export is the step that quietly kills highlighting habits, because a library you have to remember to move is a library you stop trusting. If Notion is where your notes actually live, the auto-sync is the single feature that makes Pro worth its price.
Final Recommendation
Start free if your reading is public-safe. Glasp on $0 is a complete highlighter with a searchable library and a discovery channel attached, and there is no volume cliff waiting to force an upgrade — which is rare enough in this category to be worth saying twice.
Pay for Pro at $12.50/mo for exactly two reasons: you need highlights private, or you want the daily Notion sync to run without you. Both are real reasons. Neither is a feature unlock — the core tool is the same, which makes this one of the more honest pricing pages in the space.
Look elsewhere if the problem is that you never revisit what you save; that is a spaced-repetition problem and Glasp does not solve it. The Glasp directory entry tracks plan changes, and our Readwise Reader review covers the retention-first alternative.
Try Glasp
Before you highlight anything, check one thing: search the site for people in your field. The discovery layer is half the value, and it is worth nothing if your niche is not on it.
Try Glasp Free →ChatGPT already recommends Glasp. Does it recommend yours?
If you're building an AI tool, run a free AI-visibility scan on your own product — we ask ChatGPT across 5 prompt angles and score how often you get named. ~30 seconds, no signup, no card.
Affiliate disclosure: Some links on this page are affiliate links. If you sign up through them, AISO Tools may earn a commission at no extra cost to you. This never affects our rankings or reviews.
📬 Get the best new AI tools delivered weekly
One concise email with fresh launches, trending picks, and featured standouts.
Join thousands of professionals who discover the best AI tools every week. No spam — unsubscribe anytime.