What it is
CipherMark is a private, local-first note-taking app for people who want a clean Markdown editor and AI assistance without handing the contents of their notes to anyone -- including me. Your notes are encrypted on your device before they ever touch the cloud. I can't read them, can't recover them, can't hand them over. Only your password opens them.
Why I'm building it
The "AI for your notes" category is full of pitches that quietly require you to upload everything in plaintext to a vendor's servers. That's a trade I wouldn't take with my own notes, and I don't expect anyone else to take it either. CipherMark is what happens when you build the same product but refuse to remove the encryption boundary. The cloud only ever sees ciphertext. AI features only run on the specific text you choose to send. Privacy isn't a feature; it's the architecture.
Current state
Active development. The architecture is decided: local-first storage, client-side encryption (you keep the keys), a clean Markdown editor surface, and optional AI assistance scoped only to the text you explicitly select. The encryption and sync model are getting pressure-tested in parallel with the editor build.
What's next
More to share as the build progresses. The next public milestone will land here when it does.