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Browse free open source Java Calculators and projects below. Use the toggles on the left to filter open source Java Calculators by OS, license, language, programming language, and project status.

  • Gen AI apps are built with MongoDB Atlas Icon
    Gen AI apps are built with MongoDB Atlas

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    The All-in-One Commerce Platform for Businesses - Shopify

    Shopify offers plans for anyone that wants to sell products online and build an ecommerce store, small to mid-sized businesses as well as enterprise

    Shopify is a leading all-in-one commerce platform that enables businesses to start, build, and grow their online and physical stores. It offers tools to create customized websites, manage inventory, process payments, and sell across multiple channels including online, in-person, wholesale, and global markets. The platform includes integrated marketing tools, analytics, and customer engagement features to help merchants reach and retain customers. Shopify supports thousands of third-party apps and offers developer-friendly APIs for custom solutions. With world-class checkout technology, Shopify powers over 150 million high-intent shoppers worldwide. Its reliable, scalable infrastructure ensures fast performance and seamless operations at any business size.
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  • 1

    Time Boxing FX

    TimeBoxing FX: Your productivity at your fingertips 🚀

    TimeBoxing is the ultimate app for optimizing your time management, developed with the robustness and fluidity of JavaFX. Focus on your tasks with the customizable TimeBoxing timer: easily set the number of rounds, work duration, and break duration. Distinctive sounds will alert you to the start and end of each interval, allowing you to maintain focus without distractions. But it doesn't stop there. TimeBoxing also includes an additional countdown and timer, both with audible alerts, to support your every timing need. Whether you need to meet a deadline or simply time a task, our app offers you all the tools you need to maximize your productivity in a simple and intuitive way. With essential start, break, and stop controls, you have full control of your time.
    Downloads: 8 This Week
    Last Update:
    See Project
  • 2
    Wrong Answer Calculator

    Wrong Answer Calculator

    Wrong answer guaranteed, first time, every time.

    Just a little mindless fun using beghilos or calculator spelling.
    Downloads: 5 This Week
    Last Update:
    See Project
  • 3
    Calculates victory odds for battles in Axis and Allies 1940 Edition. It takes into account the newly added units and rules in this release of the board game. Displays win/loss/tie percentages, IPC cost/loss, and remaining units. Requires Java https://blog.henrypoon.com/blog/2010/12/24/axis-and-allies-1940-battle-calculatorsimulator/
    Downloads: 2 This Week
    Last Update:
    See Project
  • 4
    BinaryCrypt

    BinaryCrypt

    Binary Conversion Calculator

    With BinaryCrypt, you can convert between regular text, binary, hexadecimal, octal decimal and decimal. You can convert only decimal (as of right now) to any base up to base 64. You can also save your converted text to a file or open a converted text file to decrypt the message, and perform basic arithmetic in binary. The git repo for the C# code is located at: https://github.com/m1r4g3/BinaryCrypt-.Net
    Downloads: 0 This Week
    Last Update:
    See Project
  • MongoDB Atlas runs apps anywhere Icon
    MongoDB Atlas runs apps anywhere

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  • 5
    D&D HP Monster Calculator

    D&D HP Monster Calculator

    Keep track of all your monsters during your encounters in a simple way

    Allows you to quickly manage the HP of multiple monsters as well as keep quick notes about the monsters!
    Downloads: 0 This Week
    Last Update:
    See Project
  • 6

    EVE Mining Operation Calculator

    EVE Mining Op Calculator

    EVE Mining Op Calculator Time based mining opertion calculator based on clock in/out tracking.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 7
    A specialized Calculator for the MMORPG EVE-Online. Calculates fuel costs when using JumpBridges and estimates the profits from selling Drone Alloys refined/unrefined.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 8
    Earl Engine moved to Google Code: http://earl.googlecode.com. BoardCalc is a separate, independent utility mobile application for Conflict of Heroes gamers. It's a probability calculator and dice replacement. NOTE:
    Downloads: 0 This Week
    Last Update:
    See Project
  • 9
    Tool to calculate PI materials requirements and prices.
    Downloads: 0 This Week
    Last Update:
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  • Photo and Video Editing APIs and SDKs Icon
    Photo and Video Editing APIs and SDKs

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    Unlock Picsart's full editing suite by embedding our Editor SDK directly into your platform. Offer your users the power of a full design suite without leaving your site.
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  • 10
    The Film Stock Calculator is an application for calculating the film stock footage and cost for a film.
    Downloads: 0 This Week
    Last Update:
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  • 11
    Höken's Calculator

    Höken's Calculator

    A building points calculator for the browser game The-West.

    Höken's Calculator (Swedish: Hökens Kalkylator) is a program developed by Gunnar Axelson (Höken). The program aims on providing a simple, multi-platform compatible, building points calculator for the browser game The-West. (This application isn't in any way supported, effected or developed by InnoGames GmbH). Currently the newest version is 1.1. Hökens Calculator is free, and opensource licensed under the terms of the GNU General Public License Version 3!
    Downloads: 0 This Week
    Last Update:
    See Project
  • 12
    The ISOCalc (Isometric Calculator Engine) is a class library for isometric plot games. The ISOCalc can be used as a calculator background for every game with different graphic front. (Special Thanks for OpenTTD Team)
    Downloads: 0 This Week
    Last Update:
    See Project
  • 13

    Kontinuum Calculator

    Calculate various aspects of the Kontinuum RPG system.

    Kontinuum is a calculator program that enables the user to calculate all probabilistic aspects of the Kontinuum RPG system, especially the dice rules.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 14
    LoveCalculator

    LoveCalculator

    A Love Calculator with a Rich User Interface

    This is a Love Calculator with a rich user interface and animations made by using JavaFX. This application runs on Windows, Linux and Mac. Java 7 or later is required. Unlike the other Love Calculators found on Internet, this one does not generate random numbers. It uses a popular hand worked algorithm used by most of the school students. The Love Percentage is calculated by the process of listing the frequencies of each letter in the string "<Name1> LOVES <Name2>" and then adding the corresponding opposite digits from two sides and listing these sums. This sums again go through the same process and this continues till the list becomes 100 or less than that and this becomes the Love Percentage.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 15
    ZoekO is a vintage game, originally coded by Joris Schoolmeesters for the Texas Instruments TI-83 calculator. The goal is to find the 'O' hidden in a grid of zeroes (these two characters only differ by 3 pixels on the TI-83).
    Downloads: 0 This Week
    Last Update:
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  • 16

    alkacalc

    Lye calculator for soapmaking

    AlkaCalc assists with the creation of soap recipes for either liquid (potassium hydroxide) or bar (sodium hydroxide) soaps by calculating the amount of lye needed to saponify any combination of soapmaking oils.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 17

    drag0nius' Diablo 3 DpS Calculator

    Damage calculator and items comparison tool for Diablo 3

    Fully featured, standalone & platform-independent Java (JRE6) damage calculator/items comparison tool for Diablo 3. Be sure to check https://sourceforge.net/p/d3dpscalc/wiki/Home/ before asking questions. Language file is available, possible to include any language as long as somebody provides me with translation. Currently supported: - English - Polish
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    Downloads: 0 This Week
    Last Update:
    See Project
  • 18
    eRepublik Productivity Offline Calculator.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 19
    A scuba diving calculator for mobile phones. If your mobile supports java (j2me) and you are a certified scuba diver, you can use this software to compute your pressure groups up to three dives per day, according to the US Navy tables.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 20
    pafcalc

    pafcalc

    DIY fertilizers calculator for planted acquariums

    This tool allows you to perform some calculations related to DIY and dosing fertilizers in planted aquariums.
    Downloads: 0 This Week
    Last Update:
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