This product was not featured by Product Hunt yet. It will not be visible on their landing page and won't be ranked (cannot win product of the day regardless of upvotes).
Arithnote is a private computational notepad that turns math in plain text into live results. Calculate with variables, percentages, totals, units, and currencies. It works offline with no signup, with optional end-to-end encrypted sync.
I started Arithnote as a lightweight place for my own notes and short-form writing. There was a moment where I had to copy and paste a lot between spreadsheets and a text doc, so I thought - I only need simple calculations, why not do it right in text? As I added the features I needed and polished the experience, Arithnote became a computational notepad: you write normally, and it evaluates calculations, variables, percentages, units, currencies, and totals inline.
I made a point of keeping it as lightweight as possible (open-and-write), otherwise I'd just use a full-featured document editor. Cross-device sync was important to me, but I didn’t want note contents stored as readable plain text, so they’re end-to-end encrypted before syncing.
Hopefully, it will be useful for others who like to work in a simple text editor but need cross-device sync, and who regularly switch between a notepad and calculator. Markdown support and a few theme choices as a bonus.
I’d especially value feedback on whether calculations feel natural in everyday notes, what Arithnote doesn’t handle well yet, and what’s still missing.
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About Arithnote on Product Hunt
“The calculator that lives inside your notes.”
Arithnote was submitted on Product Hunt and earned 0 upvotes and 1 comments, placing #37 on the daily leaderboard. Arithnote is a private computational notepad that turns math in plain text into live results. Calculate with variables, percentages, totals, units, and currencies. It works offline with no signup, with optional end-to-end encrypted sync.
Arithnote was featured in Productivity (660.2k followers), Notes (8.4k followers) and Text Editors (16.8k followers) on Product Hunt. Together, these topics include over 164.5k products, making this a competitive space to launch in.
Who hunted Arithnote?
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