Hi Product Hunt 👋

I'm the founder of Noetisphere Innovations and I built Peridot for the three

groups I kept seeing with the same problem: business owners, professionals and

students who keep notes as plain files and want more from them without giving

them to a cloud.

Peridot points at a folder of .md files you already own. Nothing to import.

🗂️ Free, offline, for good: editing, preview, Mermaid diagrams, KaTeX maths,

code, tables, search in a file, print to PDF, and JavaScript blocks that run

on your machine.

💼 For business owners and professionals (Premium): import Word, PDF, saved

web pages, slides and EPUB into Markdown; turn a table into one of 14 charts;

fill in forms inside a note; draw architecture diagrams on a canvas; export to

Word, slides, EPUB and HTML.

🎓 For students (Premium): a summary, flashcards and a timed test from your

own notes, spaced review, a notebook of the questions you got wrong, and

photograph a handwritten page into a note.

🤖 For everyone (Premium): AI on your notes through Gemini, Claude or GPT, or

your own key; search a whole folder by meaning; run code in 17 languages from

the block you are reading; keep the folder in your own GitHub repository;

optional cloud sync encrypted with AES-256 on your device.

Windows, macOS, Linux and Android today; iOS is coming to the App Store.

The app is free. Premium is a subscription with a full refund within 14 days.

🔗 https://peridot.noetisphereai.com

Tell me what you would want it to do next.