Ichinichi
One note per day. End-to-end encrypted. No signup required.
Ichinichi launched on March 26, 2026 with 1 votes, #8,013 of 23,380 launches that month.
What it does
A daily journal built on creative constraints. One note per day — no folders, no tags, no decisions. Yesterday's notes become read-only, keeping you present instead of endlessly editing the past. End-to-end encrypted so you can trust it with your most private thoughts — not even we can read them. Runs entirely on your device as a PWA. No internet required. No account required. Open the app, start writing.
A minimalist daily note app. Write one note per day, view your year at a glance. All notes stored locally in your browser.
Does a similar job
all alternatives →- IOIchinichi – One note per day, E2E encrypted, local-firstMar 2026 · ▲136
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,…

- DODailyNote – one-note-per-day app with local-first encryptionJan 2026 · ▲5
Hi HN and Happy New Year! I built DailyNote, a minimalist daily notes app: one note per day, a year-at-a-glance calendar, and local-first storage. The interesting bit is the encryption + sync model: - Notes are always encrypted locally before syncing to Supabase. - A dedicated data key (DEK) encrypts notes; your password only wraps that DEK (KEK). - So when you change your password, it just re-wraps the DEK — no re-encryption of note data. I built the whole project in one day using Claude + Codex with a spec‑driven approach (tight PRD → implementation). It’s React/TypeScript, IndexedDB…

- BSBlank Slate, just start typing2015 · blankslate.io · ▲47
Blankslate.io is a free browser-based note-taking app. Write markdown notes, save them, share links, export to PDF, or optionally export to Google Docs.
- NANotesnook – A cross-platform privacy focused zero-knowledge notes app2021 · notesnook.com · ▲32
Express yourself with freedom — no spying, no tracking, only private notes. Unlike Evernote and other note apps, your data is yours alone.
More dev tools this month
the category →

open-source IDE for thoughtful software design. Contribute to devdotfast/whiteboard development by creating an account on GitHub.
Dev tools · 27d ago · github.com

Contribute to reladraw/reladraw development by creating an account on GitHub.
Dev tools · 25d ago · github.com
OpenBot▲362Grok Bot alternative: free, local, open-source, multiplayer
Dev tools · 22d ago · openbot.run
Talanoa▲341Hi HN, I’m a fullstack developer, and honestly, I’ve lost count of how many side projects I’ve worked on over the years. But one idea kept coming back to me: a different kind of email client. It first came to me in 2014: “What if we could handle emails more like conversations?” Every year, I’d revisit this concept in my “Build Notes.” Ten years later, no one had built exactly what I had in mind — so I finally decided to do it myself. That’s how Talanoa was born. I wanted something focused on people, not timelines. I was tired of marking messages as unread just to remember to reply later, or…
Dev tools · 20d ago · talanoa.email
CoreSpeed▲332One MCP for everything your agents need: apps, memory, tools
Dev tools · 28d ago · corespeed.io
Source: Product Hunt launch ↗
Launched alongside, March 2026
the whole month →


Switch from ChatGPT to Claude with import memory feature
AI · Mar 2026 · claude.com
Littlebird▲709Littlebird remembers everything across your meetings, messages, docs, and apps, then takes action so you can recall any detail and never lose context.
AI · Mar 2026 · littlebird.ai

