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Work · January 29, 2021

Numbr

An elegant calculator for the web

Numbr launched on January 29, 2021 with 289 votes, #48 of 3,157 launches that month and more than 95% of that year's launches. The site was still online in September 2026, 5 years on.

Visit numbr.dev ↗Numbr alternativestop 2% of January 2021

In plain words

Numbr is a web-based calculator that functions like a notepad for calculations. It allows users to type notes containing numbers and instantly calculates results as they type. The tool supports currency calculations and handles multiple numbers within text, offering similar functionality to desktop applications like Soulver and Numi but accessible through a web browser.

written from the facts on this page · September 2026

From the sources

Numbr is a currency calculator, a notepad that understands your calculation. You can use notes with numbers alongside each other. And all your numbers are instantly calculated as you type. It's same as soulver/numi/etc, but for the Web.

Numbr is a smart calculator combined with a notepad. You can use notes with numbers alongside each other.

Does a similar job

all alternatives →
  • Numbr – notepad plus calculator (Chrome extension)2022 · numbr.dev · ▲8

    Numbr is a smart calculator combined with a notepad. You can use notes with numbers alongside each other.

  • Numbrrrs2025 · numbrrrs.app · ▲90

    The ios-style calculator that knows you(a tad too well)

  • I made a web-based notepad with a built in unit calculator2022 · numpad.io · ▲488

    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/

  • Calculator Notepad2022 · chromewebstore.google.com · ▲75

    A free-form calculator for Chrome

  • Numi2015 · numi.app · ▲584

    A beautiful calculator app for Mac

  • Figr.app – a multi-user, notepad style calculator (desktop app)2022 · figr.app · ▲275

    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:…

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