Work · alternatives · 2026
24 alternatives to kalker
A calculator that supports math syntax, complex numbers, etc
Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. kalker launched in 2021; newer entries below may have overtaken it.
- 1
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 →
- 2CA
2021 · mkhan45.github.io · its alternatives →
- 3
- 4
Caligator▲134An open-source calculator & convertor that thinks like you
2019 · caligator.vercel.app · its alternatives →
- 5
- 6
Create powerful, beautiful Calculator forms
2019 · convertcalculator.com · its alternatives →
- 7
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 →
- 8
A free-form calculator for Chrome
2022 · chromewebstore.google.com · its alternatives →
- 9
- 10
A base-20 Integer Math calculator using Kaktovik numerals.
2023 · kaktovik-calculator.com · its alternatives →
- 11
Simple Qt-based programming calculator. Contribute to fellerts/procal development by creating an account on GitHub.
2023 · github.com · its alternatives →
- 12
Terminal based bit manipulator in ncurses. Contribute to mellowcandle/bitwise development by creating an account on GitHub.
2019 · github.com · its alternatives →
- 13
A simple command-line calculator written in Go. Contribute to alfredxing/calc development by creating an account on GitHub.
2015 · github.com · its alternatives →
- 14
Numbrrrs▲90The ios-style calculator that knows you(a tad too well)
2025 · numbrrrs.app · its alternatives →
- 15
- 16
Functionality meets simplicity, calculate with ease
2022 · apps.apple.com · its alternatives →
- 17
Reinvented calculator, functions, graphs & math scripting
2019 · scalarmath.org · its alternatives →
- 18
A WebGL-based Complex Expression Parser and Plotter - brandonpelfrey/complex-function-plot
2015 · github.com · its alternatives →
- 19RT
2021 · writer.math.dev · its alternatives →
- 20KC
2015 · kushagragour.in · its alternatives →
- 21
Wrote this to learn more about the `chumsky` parser combinator library, rustyline, and the `ariadne` error reporting crate. Such a nice DX combo for writing new languages. Still a work in progress, but I thought I'd share :)
2025 · github.com · its alternatives →
- 22
A command line calculator made for programmers
2021 · alt-romes.github.io · its alternatives →
- 23
- 24KL
2021 · katlang.org · 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 →