Software Alternatives, Accelerators & Startups

CodeCrafters VS Calcumber

Compare CodeCrafters VS Calcumber and see what are their differences

CodeCrafters logo CodeCrafters

Programming exercises for experienced engineers.

Calcumber logo Calcumber

Calculate in a notebook and share โ€” from everyday math to engineering.
Visit Website
  • CodeCrafters Landing page
    Landing page //
    2023-10-13
  • Calcumber Usefulness of units when calculating the weight of paper
    Usefulness of units when calculating the weight of paper //
    2026-07-25
  • Calcumber Calcumber interactively embedd on a web page
    Calcumber interactively embedd on a web page //
    2026-07-25
  • Calcumber Showcase from arithmetics to thermodynamics
    Showcase from arithmetics to thermodynamics //
    2026-07-25

Use variables, functions, and units and see results immediately. Add comments, copy calculations to apps like Word or Excel, or share them through an editable link. Calculate thermodynamic fluid properties with the integrated CoolProp library.

Calcumber

Pricing URL
-
$ Details
free
Platforms
Web Windows Linux Mac
Release Date
2025 June
Startup details
Country
Switzerland
State
Aargau
City
Staufen
Founder(s)
Samuel Hartmann
Employees
1 - 9

CodeCrafters features and specs

No features have been listed yet.

Calcumber features and specs

  • ๐ŸŒฟ Naturally type expressions
    get immediate results
  • ๐Ÿ”— Copy and share
    keep calculations editable with a link
  • ๐Ÿงฉ Variables and constants
    pi, e, G, mu0
  • ๐Ÿงช Scientific functions
    sin, acos, log, round, and more
  • โ™จ๏ธ Thermodynamic fluid properties
    refrigeration, heat pumps, steam and air
  • ๐Ÿ’ก Installation optional
    run directly in your browser
  • ๐Ÿ“ฑ Multi-platform
    WebApp, Windows, more to come

CodeCrafters videos

Learn to Build Real Software With CodeCrafters

More videos:

  • Review - Mechanical Sympathy and Learning with CodeCrafters

Calcumber videos

No Calcumber videos yet. You could help us improve this page by suggesting one.

Add video

Category Popularity

0-100% (relative to CodeCrafters and Calcumber)
Education
100 100%
0% 0
Math Solver
0 0%
100% 100
Online Learning
100 100%
0% 0
Online Calculators
0 0%
100% 100

Questions & Answers

As answered by people managing CodeCrafters and Calcumber.

Why should a person choose your product over its competitors?

Calcumber's answer:

  • Sharing calculations and embedding them in documents or web pages is perfect for education.
  • Natural unit support, just include them in your expression and Calcumber handles it.
  • Free and easy access to thermodynamic fluid-properties.

What makes your product unique?

Calcumber's answer:

  • Easy to use calculator notebook
  • From simple arithmetic to advanced engineering with units
  • Installation optional
  • Send calculation link with full privacy
  • Embed calculation templates, exercices and soultions in documents or interactively in web pages

What's the story behind your product?

Calcumber's answer:

When starting for a Master of Advances Study in Energy Systems, I was looking for a suitable state-of-the-art calculator. Then I built my own Calculator Calcumber and now the Eastern Switzerland University of Applied Sciences is using Calcumber for teaching students in thermodynamics.

How would you describe the primary audience of your product?

Calcumber's answer:

  • The notebook-style calculator is great for everybody who wants more than just a single line calculator.
  • The sharing and embedding features make it Calcumber very well suited for teachers and students. The power of consistently using units is shown immediatly.
  • Engineers will like the unit support, sharing calculations with collegues and if needed the built-in fluid properties calculation.

Which are the primary technologies used for building your product?

Calcumber's answer:

HTML, CSS, TypeScript, PWA, CoolProp

Who are some of the biggest customers of your product?

User comments

Share your experience with using CodeCrafters and Calcumber. For example, how are they different and which one is better?
Log in or Post with

Social recommendations and mentions

Based on our record, CodeCrafters seems to be more popular. It has been mentiond 9 times since March 2021. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.

CodeCrafters mentions (9)

  • Ask HN: What skills do you want to develop or improve in 2026?
    I had a lot of with Code Crafters. It's a paid platform, but they give you a basic walk through of different technologies, with full test suites. For example, you implement some basic Redis. It doesn't spoon feed you what to do, but breaks it down into manageable chunks. https://codecrafters.io/. - Source: Hacker News / 8 months ago
  • Learning Go the Hard Way
    To make this happen, I'm starting with the Shell Challenge at CodeCrafters.io. - Source: dev.to / 8 months ago
  • Build your own shell : Codecrafters Edition
    Have you ever thought of building your own shell โ€” or anything you use in your daily tasks? It could be an IDE, a simple database, or even a text editor. In this blog, Iโ€™ll walk you through the exciting journey of building a shell using the Codecrafters platform. Iโ€™ll share why the experience is amazing and why you should absolutely give it a try! - Source: dev.to / about 1 year ago
  • Long weekends and short updates
    This is where today's quick tip comes into play. Do you know Codecrafters.io? If you don't, let's remedy that now! It's a platform that monthly proposes building projects of different complexity, guiding you step by step in studying and developing. Some of the latest projects include reproducing your own version of Git, Redis, BitTorrent, or your Interpreter. - Source: dev.to / almost 2 years ago
  • Stop Re-Implementing Code: Use Extract Method in Rust
    I recently started learning Rust using the awesome CodeCrafters website. - Source: dev.to / almost 2 years ago
View more

Calcumber mentions (0)

We have not tracked any mentions of Calcumber yet. Tracking of Calcumber recommendations started around Jul 2026.

What are some alternatives?

When comparing CodeCrafters and Calcumber, you can also consider the following products

Scrimba - Interactive coding screencasts created in an instant

Numara Calculator - A simple but powerful notepad calculator which evaluates expressions as you type.

Codรฉdex - The most fun way to learn to code.

SpeedCrunch - SpeedCrunch. SpeedCrunch is a high-precision scientific calculator featuring a fast, keyboard-driven user interface. It is free and open-source software, licensed under the GPL. Download Documentation Donateย .

GoIT LMS - Empowering emerging markets with high-quality tech education

Qalculate! - Qalculate! is a multiplatform multi-purpose desktop calculator.