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Arithnote
The calculator that lives inside your notes.
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.
Top comment
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.
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.
On the analytics side, Arithnote competes within Productivity, Notes and Text Editors — topics that collectively have 685.4k followers on Product Hunt. The dashboard above tracks how Arithnote performed against the three products that launched closest to it on the same day.
Who hunted Arithnote?
Arithnote was hunted by Noxvine. A “hunter” on Product Hunt is the community member who submits a product to the platform — uploading the images, the link, and tagging the makers behind it. Hunters typically write the first comment explaining why a product is worth attention, and their followers are notified the moment they post. Around 79% of featured launches on Product Hunt are self-hunted by their makers, but a well-known hunter still acts as a signal of quality to the rest of the community. See the full all-time top hunters leaderboard to discover who is shaping the Product Hunt ecosystem.
For a complete overview of Arithnote including community comment highlights and product details, visit the product overview.