AI-native personal notebook
The notebook that
files itself.
Speak or type a half-thought. Kanto writes the title, picks the category, tags the people and projects, and makes every note searchable by meaning — so future you can just ask for it back.
Free forever tier · No credit card · Bring your own OpenAI key
You said
"Reminder for the Friday demo: swap the pricing slide with the new one Sarah sent, and mention the AWS migration savings. Also add the customer quote from Acme."
Kanto filed it as
Friday demo prep: pricing slide + AWS savings
Category: todo
People: Sarah
Orgs: Acme, AWS
Why Kanto
Stop being your own librarian.
Every other notes app makes you do the filing. Kanto does it in the background — so capture stays a 3-second habit and recall stays a conversation.
Capture in 3 seconds
One textarea. One record button. Voice is auto-transcribed with Whisper. Save is instant — enrichment runs later.
AI files it for you
Auto-title, category, tags, and entities (people, orgs, projects, dates). You can override anything — or nothing.
Search by meaning
Find "the idea about remote-team rituals" even when those exact words aren't in the note. Powered by embeddings + pgvector.
Ask your notes
Chat with your own knowledge. Answers cite the specific notes they came from — no hallucinated sources.
Filter, sort, restore
Filter by tag or category, sort by updated / created / title. Soft-delete keeps a restorable trash for 30 days.
Your data, your key
Bring your own OpenAI key from day one. Full export anytime. Every note is private and RLS-scoped.
A real example
You caught the PM in the hallway.
You dictated a 45-second note after a hallway conversation. Three days later, before a status call, you asked Kanto:
You asked
"What are the risks for the Acme Health rollout?"
Kanto answered
The rollout faces three risks: a 15% Q3 budget cut, two senior devs out in August, and a hard dependency on Mark's Auth0 migration. Susan's team pushed go-live to September 14, and if the Auth0 work slips, the whole date slips. See [Note 1] Acme Health rollout risks.
How that worked
- 1You spoke 45 seconds. Whisper transcribed it and saved a note.
- 2In the background, Kanto embedded the note into a 1536-dim vector and generated its title, tags, category, and entities.
- 3Three days later, your question was embedded the same way. Cosine similarity found the rollout note in <100ms.
- 4The retrieved note was passed to GPT-5.4-nano as context, which composed the answer with a cited source.
< 200ms
Save latency
< 400ms
Search latency
~4s
Enrichment
Made for
People who think faster than they type.
The commuter thinker
Ideas hit on walks, trains, ubers. Dictate; forget. Ask for them next week.
The analyst / consultant
Notes across many people, companies, projects. Answer "what did I hear about X across the last N conversations?" months later.
The founder / operator
Meeting takeaways, product ideas, hiring notes. Categorized without you filing.
Your data, your key
Private by default.
Every note is scoped to your account with row-level security. No cross-user reads, ever. Bring your own OpenAI key and your notes never touch our billed API. Export or delete everything anytime.
- Row-level security on every table — enforced by Postgres, not app code
- Bring your own OpenAI key (recommended) or use ours
- End-to-end HTTPS; secrets never touch the browser bundle
- Full JSON export at any time
- One-click account deletion — full purge within 30 days
Capture the next thought.
Free tier. No credit card. About sixty seconds from sign-up to your first note.