Life & fun · alternatives · 2026
24 alternatives to Notepad Calculator – create and share back of the envelope calculations
For jotting down and sharing quick calculations. Type free-form text and see the results of any calculations appear in the margin.
Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Notepad Calculator – create and share back of the envelope calculations launched in 2015; newer entries below may have overtaken it.
- 1
A free-form calculator for Chrome
2022 · chromewebstore.google.com · its alternatives →
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I launched NumPad v1 on here a few years ago, and back then it wasn't much more than a thin CodeMirror wrapper around the calculator engine I'd written. Now I've rewritten it as a PWA that supports multiple documents, persists them to IndexedDB, and has a syncing service for paying customers. Syncing is handled by Automerge[1] under the hood, which should make it relatively easy to get document sharing working too. [1] https://automerge.org/
2022 · numpad.io · its alternatives →
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Hi all, just posting an update to my previous Show HN, where I announced a side-project I worked on which was a (web version) of a multi-user, notepad style calculator: https://news.ycombinator.com/item?id=31817997 After a couple of user requests (and having a good think about it) I decided to migrate the web UI to create a Mac and Windows desktop app. After using it a little bit, I feel this is a much better experience than the webapp, and reduces a lot of the friction if I wanted to run a few small calculations. You can find the download links below:…
2022 · figr.app · its alternatives →
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CalcMate▲88calculate numbers, dates, units within notes
2023 · accounts.google.com · its alternatives →
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Margin and profit margin calculator
2022 · margincalculator.us · its alternatives →
- 10
Tool to calculate how convertible notes will convert
2016 · equidam.com · its alternatives →
- 11
A free-form calculator extension for Google Chrome
2022 · chromewebstore.google.com · its alternatives →
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Notation▲190The notepad that is always just one keystroke away 📝
2019 · notation.studio.site · its alternatives →
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Create powerful, beautiful Calculator forms
2019 · convertcalculator.com · its alternatives →
- 15
Notepad▲113A rich, distraction-free alternative to sticky notes 📋
2018 · notepad.microtheta.com · its alternatives →
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Functionality meets simplicity, calculate with ease
2022 · apps.apple.com · its alternatives →
- 18
Calculations and notes inside your browser tab
2021 · chromewebstore.google.com · its alternatives →
- 19NS
2020 · type-calc.herokuapp.com · its alternatives →
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Start building the future of your company, today. Create powerful on brand calculators, lead generation forms and apps that automate your marketing and sales processes.
2019 · convertcalculator.co · its alternatives →
- 21
Build proposals, quotes, ROI, and any calculator you want!
2024 · formaloo.com · its alternatives →
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Write notes and calculate without switching apps.
Apr 2026 · apps.apple.com · its alternatives →
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Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →