KnoBox
ANDROID · AI BOOKMARK MANAGER

Save it once.
Actually find it later.

Save anything you find worth remembering. KnoBox reads it, summarizes it, and tags it automatically — so your saves are actually useful later.

Free plan includes 25 AI-summarized saves a month, 30 chat questions a month, and 3 Deep Dive syntheses a month.

KnoBox Dashboard screenshot

Three taps from tab to library

1

Share it to save it

From your browser or any app, tap Share and choose KnoBox from the list that pops up.

2

KnoBox reads it for you

Analysis runs in the background, even if you close the app right after sharing. You get a notification the moment a save is ready.

3

Ask, don't dig

Search a topic or ask a question and KnoBox brings back what actually matches — not just what happens to say the same words.

The app itself

KnoBox Dashboard screenshot
Dashboard
Your library as a masonry grid, newest first.
KnoBox chat screenshot
KnoBox chat
Answers with tappable sources from your own saves.
KnoBox bookmark detail screenshot
Bookmark detail
Summary, tags, Deep Dive and Open in Browser.

Chat with what you've saved

KnoBox answers questions across your whole library and hands you tappable links straight back to the source, right from the conversation.

What did I save about chunk sizes for embeddings?
KnoBox
Two of your saves land on 300–500 token chunks with overlap, and one argues recall matters more than model size.
Choosing an embedding model in 2026
Retrieval beats bigger context
Connecting the dots…
Ask about your bookmarks…

Your library, backed up

Saves live on your device from the moment you share them. Sign in with just an email — no password — to back the library up and pick it up on another device. Until you do, they exist only on that one install.

Deep Dive and related concepts

Generate a synthesis across a save's neighbours, or open the concept graph to see how a bookmark connects to everything else in your library.

embeddings chunking retrieval local-first long context

Saved the same link twice?

Saving from the share sheet and the extension both is easy to do by accident. Run a duplicate check anytime and clear the extra copies — keep the newest, delete the rest, in one tap.

3 copies of this link Keep newest, delete rest
Retrieval beats bigger context today
Retrieval beats bigger context Mar 2
KnoBox extension icon CHROME & EDGE EXTENSION

Save from your laptop, read it on your phone

The KnoBox browser extension talks to the same backend as the Android app. Sign in on both and everything you save in the browser is waiting in your library on your phone — no file transfers, no extra steps.

✓One-click save of the tab you're on, from the toolbar
✓Right-click any link → Save to KnoBox
✓Search your library, or ask a question, right in the panel
✓Opens with Ctrl+Shift+K (⌘+Shift+K on Mac)

Sign-in and sync are free on every plan — only AI volume is Pro-gated, and Pro is purchased in the Android app.

Sign in to see these bookmarks in the KnoBox app
Save this page
Search, or ask a question…
✦
vector-db
ai
design
offline-first
Recent
Retrieval beats bigger context
A benchmark on long-document QA.
Choosing an embedding model in 2026
Recall and cost across hosted APIs.
Local-first sync, explained
Processing…
Synced as you@example.com Settings

Versus a folder full of bookmarks

PLAIN BOOKMARKS
A title and a URL — whatever the page happened to be called.
Search only matches words in that title.
You file it yourself, or you don't file it at all.
No way to ask what you saved about a topic.
Saves you never return to just pile up silently.
KNOBOX
✓An AI summary of what the page actually says.
✓Semantic search by concept, not just keyword.
✓Tags and folders suggested automatically.
✓Chat across your library, with links back to sources.
✓Occasional nudges to resurface links you forgot.

Free to start

Everything below works on the free plan. Upgrade to KnoBox Pro anytime for unlimited everything — billed through Google Play, cancel anytime.

FREE
$0forever
✓25 AI-summarized saves a month
✓30 chat questions a month
✓3 Deep Dive syntheses a month
✓Semantic search, folders, and the browser extension
KNOBOX PRO
$2.99/ month, or $19.99 / year
placeholder pricing — set in Google Play
Everything, unlimited
✓Unlimited AI summaries on every save
✓Unlimited Chat and Deep Dive
✓Sync your library across every device
✓Unlimited folders
✓Richer export options
Go Pro in the app

Stop bookmarking into the void

KnoBox is free to start and takes one share to try.

Get it on Google Play