Work · alternatives · 2026
24 alternatives to Numbr
An elegant calculator for the web
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… Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Numbr launched in 2021; newer entries below may have overtaken it.
- 1
Numbr is a smart calculator combined with a notepad. You can use notes with numbers alongside each other.
2022 · numbr.dev · its alternatives →
- 2
Numbrrrs▲90The ios-style calculator that knows you(a tad too well)
2025 · numbrrrs.app · its alternatives →
- 3
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 →
- 4
A free-form calculator for Chrome
2022 · chromewebstore.google.com · its alternatives →
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- 6
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 →
- 7
A smart notepad with a built in calculator
2019 · soulver.app · its alternatives →
- 8
- 9
Numby▲83A natural language calculator for your terminal and macOS
Nov 2025 · numby.vivy.app · its alternatives →
- 10AD
A new calculator software cannot really bring attention (https://chachatelier.fr/chalk/) However, I wrote a full article explaining why I had to build something "new" that does not behave like usual desktop calculator softwares : TL;DR All "small" calculator softwares I know share the same design flaws. And the GUI is not the only stumbling block in their poor efficiency. Handling correctly numerical approximations - expected or not - is crucial to trust the results. It is usually not done in lightweight tools. It should. So I prove that if I could do it, OS manufacturers…
2022 · its alternatives →
- 11
NoteCalc▲267NoteCalc is a handy calculator trying to bring the advantages of Soulver to the web. - Release v0.3.0 · bbodi/notecalc3
2020 · github.com · its alternatives →
- 12
Kalker is a calculator that supports user-defined variables, functions, ambiguous syntax, differentiation and integration. It runs on Windows, macOS, Linux, Android, and in web browsers (with WebAssembly).
2021 · kalk.strct.net · its alternatives →
- 13
CalPal▲105I built this using React/Next.js. The parsing logic uses [library/custom regex]. Added Gemini API support so users can generate budget templates dynamically. No ads, just a tool.
Jan 2026 · trycalpal.app · its alternatives →
- 14
- 15IT
2015 · incometaxcalculator.net.in · its alternatives →
- 16CA
2021 · mkhan45.github.io · its alternatives →
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kalker▲70A calculator that supports math syntax, complex numbers, etc
2021 · kalker.xyz · its alternatives →
- 19
Calculator with attitude Hidden easter eggs + yearly Wrapped
Nov 2025 · apps.apple.com · its alternatives →
- 20
CalPal▲70A super simple calculator with instant as you type results
2019 · apps.apple.com · its alternatives →
- 21
Simplify currency conversions on your web pages
2024 · chromewebstore.google.com · its alternatives →
- 22
Hissab▲108Hissab is a strict, unit-aware natural-language calculator for exact units, dates, finance, developer math, and AI-agent workflows. Free, open-source, and installable.
2023 · hissab.io · its alternatives →
- 23
A free-form calculator extension for Google Chrome
2022 · chromewebstore.google.com · its alternatives →
- 24
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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 →