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Dev tools · alternatives · 2026

24 alternatives to I made a specialized calculator to help with my gameboy emulator

Terminal calculator made for programmers working with multiple number representations, sizes, and overall close to the bits - GitHub - alt-romes/programmer-calculator: Terminal calculator made for programmers working with multiple number representations, sizes, and overall close to the bits

Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. I made a specialized calculator to help with my gameboy emulator launched in 2021; newer entries below may have overtaken it.

  1. 1AD

    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 →

  2. 2

    Terminal based bit manipulator in ncurses. Contribute to mellowcandle/bitwise development by creating an account on GitHub.

    2019 · github.com · its alternatives →

  3. 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. 4IM

    https://github.com/siraben/ti84-forth Hi HN! For the past year I've been getting into programming in Z80 assembly (especially for the TI-84+). More recently I've been learning about the Forth programming language and after a lot of searching online (in vain) for a Forth interpreter for the TI-84, I decided to write one myself. It's been fun demoing this to others, because it's a very unexpected use of a calculator. It's my largest project to date, and I'm interested to know what the HN community thinks, please feel free to critique my code! -- Ben

    2018 · its alternatives →

  5. 5
    Webacus▲106

    Swiss-army knife for developers

    2022 · webacus.dev · its alternatives →

  6. 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. 7

    A command line calculator made for programmers

    2021 · alt-romes.github.io · its alternatives →

  8. 8

    Simple Qt-based programming calculator. Contribute to fellerts/procal development by creating an account on GitHub.

    2023 · github.com · its alternatives →

  9. 9

    I figured I needed to work on my coding skills before building the next groundbreaking AI app, so I started working on this free tool site. Its basically just an aggregation of various commonly used calculators and unit convertors. Link: https://www.calcverse.live Tech Stack: Next, React, Typescript, shadcn UI, Tailwind CSS Would greatly appreciate your feedback on the UI/UX and accessibilty. I struggled the most with navigation. I've added a search box, a sidebar, breadcrumbs and pages with grids of cards leading to the respective calculator or unit convertor, but not sure if…

    2025 · calcverse.live · its alternatives →

  10. 10IG

    I’ve always found that online calculators tend to have bad UIs, especially on mobile. Most of the calculator websites I’ve come across use outdated and inconvenient ways of inputting data, or they format the results in confusing ways. I’ve noticed that fraction calculators (especially mixed fractions) are terrible to use, even on desktop. I haven’t built one of those yet, but it’s something I’m planning to tackle soon. This is a project I’ve always wanted to work on, but I’m relatively new to this space. So far, I’ve created a collection of simple calculators focused on math and finance. I’d…

    2025 · its alternatives →

  11. 11

    A free-form calculator for Chrome

    2022 · chromewebstore.google.com · its alternatives →

  12. 12CA
  13. 13
    TCal▲58

    Notepad calculator app

    2022 · apps.apple.com · its alternatives →

  14. 14

    Hey, maker here. After launching a daily word search game, I randomly thought of this math game while driving. Finally got around to making it and I think it turned out pretty cool. It’s a math search game that’s meant to help you practice your quick addition, subtraction, multiplication, and division skills. I’m hoping it’ll help people (even those like me who aren’t big on math) learn and increase their speeds. (There are also some settings you can enable to make the game harder) If you try it out, please let me know if you found it fun, if you have anything you’d like me to add, or if you…

    2024 · worchle.com · its alternatives →

  15. 15
    Calculo▲195

    Calculator from the future

    2024 · calculo.tech · its alternatives →

  16. 16

    A simple calculator for complicated math

    2019 · simpleator.com · its alternatives →

  17. 17
    Multitui▲126

    I made Multitui to control the sandbox of coding agents easily without changing my dev environment (no special container or VM). There's no configuration required in your local dev environment... just launch ClaudeCode.app instead of claude in your general terminal. Containers and VMs can be useful, but I always have a bunch of projects going and those solutions feel heavy. Multitui creates single-purpose native macOS apps for any terminal app, with optional sandbox. It uses the built-in macOS sandbox-exec along with log monitoring to give you an easy UI to manage rules, see what's being…

    Feb 2026 · multitui.com · its alternatives →

  18. 18
    KnightOS▲136

    An open-source OS for calculators

    2016 · its alternatives →

  19. 19

    Web Notepad that supports calculations

    2015 · its alternatives →

  20. 20

    A simple command-line calculator written in Go. Contribute to alfredxing/calc development by creating an account on GitHub.

    2015 · github.com · its alternatives →

  21. 21

    Easily calculate the token count and cost of your GPT Prompt.

    2023 · gptcalculator.xyz · its alternatives →

  22. 22
    Tchisla▲62

    Calculator game with numbers

    2017 · apps.apple.com · its alternatives →

  23. 23

    What do you want to calculate?

    2014 · mathpapa.com · its alternatives →

  24. 24IM

    Hi HN, I am a solopreneur in the evenings and a software engineer during the day. In the past, I have created lots of calculators for my web projects and freelancing friends. These were pretty basic, but users always welcomed them. I also used currently available builders, but the problem was that they were either slow, broke on mobile devices, had nonsense page view limits, or were expensive. Some even ticked all those boxes. So I have decided to create my own, with a simple interface, and called it Creative Widgets (if it ever takes off, I plan to add more exciting stuff like charts, etc,…

    2024 · creativewidgets.io · 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 →