Ichinichi – One note per day, E2E encrypted, local-first
Look, every journaling app out there wants you to organize things into folders and tags and templates. I just wanted to write something down every day. So I built this. One note per day. That's the whole deal. - Can't edit yesterday. What's done is done. Keeps you from fussing over old entries instead of writing today's. - Year view with dots showing which days you actually wrote. It's a streak chart. Works better than it should. - No signup required. Opens right up, stores everything locally in your browser. Optional cloud sync if you want it - E2E encrypted with AES-GCM, zero-knowledge,…
In plain words
Ichinichi is a journaling app that limits users to writing one note per day, with past entries locked from editing. It stores data locally in the browser with optional end-to-end encrypted cloud sync, requiring no signup to start. The app displays a year view with dots marking writing streaks and is built as a progressive web app. Designed for people who want a simple daily writing habit without organization features like folders, tags, or templates.
written from the facts on this page · September 2026
From the sources
In the maker’s words, at launch
Look, every journaling app out there wants you to organize things into folders and tags and templates. I just wanted to write something down every day. So I built this. One note per day. That's the whole deal. - Can't edit yesterday. What's done is done. Keeps you from fussing over old entries instead of writing today's. - Year view with dots showing which days you actually wrote. It's a streak chart. Works better than it should. - No signup required. Opens right up, stores everything locally in your browser. Optional cloud sync if you want it - E2E encrypted with AES-GCM, zero-knowledge, the whole nine yards. Tech-wise: React, TypeScript, Vite, Zustand, IndexedDB. Supabase for optional sync. Deployed on Cloudflare. PWA-capable. The name means "one day" in Japanese (いちにち). The read-only past turned out to be the thing that actually made me stick with it. Can't waste time perfecting yesterday if yesterday won't let you in. Live at https://ichinichi.app | Source: https://github.com/katspaugh/ichinichi
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