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

  • Paessler: Easy to Use With Enterprise Power. Free Trial Icon
    Paessler: Easy to Use With Enterprise Power. Free Trial

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    Veeam Data Platform v13.1

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  • 1
    PeaZip

    PeaZip

    Free Zip software and Rar extractor

    PeaZip is a free archiver tool. The application provides an unified, natively portable, cross-platform file manager and archive manager GUI for many Open Source technologies like 7-Zip, FreeArc, PAQ, UPX. Create: 7Z, ARC, Brotl, BZip, GZip, PEA, TAR, WIM, XZ, ZPAQ, ZIP, Zstandard files and more Open and extract 200+ file types: ACE, CAB, DEB, ISO, RAR, ZIPX and more Features of PeaZip includes extract, create and convert multiple archives at once, create self-extracting archives (sfx), split files, strong encryption with two factor authentication, encrypted password manager, secure deletion, find duplicate files, calculate hashes, export task definition as command line script.
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    Downloads: 1,764 This Week
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  • 2
    CRC RevEng

    CRC RevEng

    Arbitrary-precision CRC calculator and algorithm finder

    CRC RevEng is a portable, arbitrary-precision CRC calculator and algorithm finder. It calculates CRCs using any of the 113 preset algorithms, or a user-specified algorithm to any width. It calculates reversed CRCs to give the bit pattern that produces a desired forward CRC. CRC RevEng also reverse-engineers any CRC algorithm from sufficient correctly formatted message-CRC pairs and optional known parameters. It comprises powerful input interpretation options. Compliant with Ross Williams' Rocksoft(tm) model of parametrised CRC algorithms.
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    Downloads: 617 This Week
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  • 3

    TILP - TI Linking Program

    TI graphing calculators <-> computer communication software

    TILP (formerly GtkTiLink) can transfer data between Texas Instruments graphing calculators and a computer. It works with all link cables (parallel, serial, Black/Gray/Silver/Direct Link) and it supports the TI-Z80 series (73..86), the TI-eZ80 series (83PCE, 84+CE), the TI-68k series (89, 92, 92+, V200, 89T) and the Nspire series (Nspire Clickpad / Touchpad / CX, both CAS and non-CAS). The project is now managed on Github, https://github.com/debrouxl/tilp_and_gfm . It uses the libti* libraries, https://github.com/debrouxl/tilibs . Install script for *nix: https://github.com/debrouxl/tilp_and_gfm/blob/master/tilp/trunk/build/scripts/install_tilp.sh
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    Downloads: 462 This Week
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  • 4
    Open Tax Solver

    Open Tax Solver

    Calculates income tax form entries, helps do your taxes.

    OTS is a safe, secure, easy-to-use program for calculating Tax Return Form entries, and determining your tax-owed or refund-due, for Federal or State personal income taxes. Includes updated versions for US 1040, Schedules A, B, C, D, and for several states. OTS provides both graphical and textual interfaces for quickly filing out your tax forms. --- Best way to download the correct version for your platform -- go to the OTS WEBSITE: =====> https://opentaxsolver.sourceforge.net/
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    Downloads: 214 This Week
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  • 5
    teemIP - CMDB & DDI solution

    teemIP - CMDB & DDI solution

    teemIP : Open source IPAM & DDI solution with CMDB integration.

    teemIP is an open source, web-based IP Address Management (IPAM) and DDI solution built on the iTop framework. It provides comprehensive IP management: IPv4/IPv6 plan management, subnet hierarchy, IP lifecycle, VLAN and DNS/DHCP integration. teemIP is now maintained by the teemIP SAS founding team: Christophe Naud (original creator), Martin de Laval and Quentin Ville. The company is being officially incorporated in July 2026. The project remains open source under AGPL v3. Professional support, integration services and subscriptions: https://www.teemip.com
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    Downloads: 173 This Week
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  • 6
    Calculator to compute message digests, checksums for files, as well as for text and hex strings.
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    Downloads: 290 This Week
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  • 7
    pretty-bytes

    pretty-bytes

    Convert bytes to a human readable string: 1337 → 1.34 kB

    pretty-bytes is a JavaScript utility for converting raw byte counts into compact, human-readable size strings. It uses decimal SI units by default, turning values such as 1337 bytes into 1.34 kB. The library can display bits instead of bytes and can switch to binary prefixes such as KiB when appropriate. Signed output is available for showing positive or negative size differences. Formatting can be localized, and developers can control fractional digits, spacing, and non-breaking spaces. Fixed-width output can align values neatly in tables, status displays, and progress interfaces. The function accepts both regular numbers and BigInt values, making it suitable for a wide range of file-size and data-rate displays.
    Downloads: 15 This Week
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  • 8
    pretty-ms

    pretty-ms

    Convert milliseconds to a human readable string

    pretty-ms is a JavaScript utility for converting millisecond values into compact, human-readable durations. It accepts both numbers and BigInt values and automatically breaks durations into appropriate time units. Developers can choose concise output, full unit names, or digital-clock-style colon notation. Precision controls determine how seconds and milliseconds are rounded and displayed. The package can expose microseconds and nanoseconds for sub-millisecond values and can represent sub-second durations as decimal seconds. Options also let applications limit the number of displayed units or hide particular duration components. It is useful for timers, benchmarks, progress indicators, logs, and other interfaces that need readable elapsed-time values.
    Downloads: 12 This Week
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  • 9
    CEmu emulator

    CEmu emulator

    Third-party TI-84 Plus CE / TI-83 Premium CE emulator

    Developer-oriented emulator of the eZ80-based TI-84 Plus CE / TI-83 Premium CE calculators. CEmu is a third-party TI-84 Plus CE / TI-83 Premium CE calculator emulator, focused on developer features. The core is programmed in C and the GUI in C++ with Qt, for performance and portability reasons. CEmu works natively on Windows, macOS, and Linux! Easy setup - get running by doing a one-time-only connection of your calculator! Accurate and fast emulation. Customizable speed/throttling. Resizable calculator screen. "Always-on-top" window option. Screen capture (PNG). Screen recording (animated PNG). File sending/receiving (not for Apps/OS yet). Multiple keybinding presets. Emulation states for efficient saving / restoring. Color skins (like the real devices). Available in English, French, Spanish, and Dutch.
    Downloads: 11 This Week
    Last Update:
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  • MongoDB Atlas runs apps anywhere Icon
    MongoDB Atlas runs apps anywhere

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  • 10
    Giacenze Crypto

    Giacenze Crypto

    Programma per il calcolo delle plusvalenze Cripto + analisi CSV CDC

    Il programma permette di calcolare le plusvalenze (calcolate attraverso il metodo del LIFO) derivanti dagli scambi di criptovalute un po' su tutte le piattaforme e sulla Defi, inoltre per gli utenti di Crypto.com c’è anche la possibilità di calcolare saldo e giacenza media della Carta Visa e del Fiat Wallet. Le istruzioni sul funzionamento sono reperibili qua : https://lucapasselli.github.io/GiacenzeCrypto/documentazione/ e qua : https://sourceforge.net/projects/giacenze-crypto-com/files/Documentazione/ Per ulteriori info potete unirvi al gruppo telegram https://t.me/+6kfy5mjov-I2ODY8. Codice Sorgente : https://github.com/Lucapasselli/GiacenzeCrypto Canale Youtube : https://www.youtube.com/@cryptofer82 Sito Internet : https://www.giacenzecrypto.it
    Downloads: 109 This Week
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  • 11
    This emulator is capable of providing a faithful replication of the HP48. It also has a debugger for the saturn processor.
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    Downloads: 42 This Week
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  • 12
    GraphCalc is a very gui graphing calculator. It has been called a good replacement for a TI-85. It is a must for any high school math student.
    Downloads: 26 This Week
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  • 13
    WP 34s

    WP 34s

    Scientific/engineering firmware repurposing HP business calculators!

    This project has created scientific firmware for the HP-20b and HP-30b business calculators. WP 34S turns either of these calculators into a powerful keystroke programmable scientific device. According to our customers, it's the most powerful and fastest RPN scientific pocket calculator ever built. WP 34S is alive and stable since 2011. We have succeeded in satisfying the most picky users - read about their experiences on http://www.hpmuseum.org/forum/forum-8.html. Since 2014, WP 34S runs in version 3.3. Our customers confirm its documentation is excellent and comprehensive (see feedback); a full-color printed edition is available from https://www.amazon.com/dp/153366238X since 2018-10-15. Alternatively, you can get a personalized pdf-manual for a ≥ 9 US$ donation here. We have also produced the WP 31S which is derived from the WP 34S source code. This is an entry-level scientific calculator. Its printed manual is available from https://www.amazon.com/dp/1499231164 .
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    Downloads: 22 This Week
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  • 14
    Finanx 12c

    Finanx 12c

    Financial Calculator

    The Finanx 12c is a free software that mimics the HP-12C financial calculator. This software was developed for educational purposes. IT'S NOT RECOMMENDED using this calculator for professional calculations. If you find any bugs, please, let me know. Click "Bugs" in the menu bar to report bugs found.
    Downloads: 21 This Week
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  • 15
    Numi

    Numi

    Beautiful calculator app for macOS

    Numi is a handy calculator app for macOS. It allows you to describe tasks naturally and instantly get an answer. For example, $20 in euro - 5% discount or today + 2 weeks.
    Downloads: 3 This Week
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  • 16
    'atlc' is a CAD package used for analysing and desiging electrical transmission lines of arbitrary cross section. Also for the design of directonal couplers. Some parts are CPU intensive, so multiple CPUs are supported.
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    Downloads: 26 This Week
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  • 17

    calc: C-style arbitrary precision system

    Calc: arbitrary precision C-like arithmetic & calculator

    Calc is arbitrary precision C-like arithmetic system that is a calculator, an algorithm prototyper and mathematical research tool. Calc comes with a rich set of builtin mathematical and programmatic functions.
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    Downloads: 16 This Week
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  • 18

    Geometry Dashboard

    A project to create a simple Geometry Calculator

    I apologize for this, but an accident occurred and all of my GeoDash work has been lost. No updates will be coming. To view all of the files available please click on the 'Browse All Files' link under the 'Big Green Download' button above this description.
    Downloads: 36 This Week
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  • 19
    Calculator-Scripts

    Calculator-Scripts

    Just a few scripts for pocket calculators.

    Just a few applications for various pocket calculators.
    Downloads: 52 This Week
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  • 20
    Smith Chart Calculator

    Smith Chart Calculator

    Smith Chart Calculator JAVA

    A small tool which allows all basic smith chart actions. This program was created for educational purposes. JAVA RUNTIME REQUIRED Tested on Windows. Some features may not available with other OS (e.g. copy to clipboard) GENERAL PUBLIC LICENSE There is a pdf help file online take a look in the files section. There is also a link available in the program itself.
    Downloads: 12 This Week
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  • 21
    This is a Hash Calculating tool that calculates MD2,MD5,SHA-1,SHA-256,SHA-384,SHA-512 hash of text or a file. This has GUI developed in java swings.All it needs is sun jre installed.
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    Downloads: 11 This Week
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  • 22
    Tablet 83 is an easy-to-use calculator based on the _functionality_ of Texas Instruments' TI-83+.
    Downloads: 29 This Week
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  • 23

    Logic Calculator

    A Calculator to perform logical operations

    The Logic Calculator is an application useful to perform logical operations. It has three modes: (1) Evaluation of logic formulae: In this mode we have the basic boolean operations (negation, conjunction, disjunction, conditional and biconditional) so the user can insert the logic formula and the Logic Calculator displays the truth table along with the models of the formula. (2) Logical entailment: In this mode the user can insert a number of premises followed by a number of conclusions, so the Logic Calculator displays the truth table of each premise / conclusion and the result of whether or not these premises logically entail the given conclusions. (3) Conversion of a formula to Disjunctive Normal Form (DNF) and Conjunctive Normal Form (CNF): In this mode the user inserts a logic formula and the Logic Calculator outputs its representation in both a DNF and CNF.
    Downloads: 8 This Week
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  • 24
    Crypto Arbitrage

    Crypto Arbitrage

    A cryptocurrency arbitrage opportunity calculator

    A cryptocurrency arbitrage opportunity calculator and trading bot. Over 800 currencies and 50 markets. In short, it collects JSON from multiple different cryptocurrency markets, goes through the results, and finds the highest and lowest price for each coin. The script will find the highest price (chbtc.com), and lowest price (Bittrex), and divide the two: 51.8/38.23 = ~1.35 (~35% profit margin) and then push these results to the browser. It will also find the next highest market pairs, e.g. chbtc / jubi is the second-highest pair and chbtc/Bittrex the third, jubi/Bittrex the fourth and so on until every possible combination has been computed. Currently you will have to add a market object with the correct settings in the array markets, situated in the settings.js file. I am updating the project every day and this will change soon. You can temporarily stop loading a market from the frontend, or remove the market by deleting the object in settings.js.
    Downloads: 1 This Week
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  • 25
    EN: Code created to show how is done the calculation of a CRC. It includes many different CRCs to choose from. This software was created to help people understand how is the CRC calculated and be able to see it in a practical way, it is also available to copy and use it for your own project. I hope it helps you. ES: Código creado para mostrar como se realiza el cálculo de un CRC. Con el mismo se incluyen varios CRCs que pueden ser escogidos. Este software se creó con el propósito de ayudar a la gente a entender como se hace el cálculo de un CRC de una manera más práctica y sencilla, también se puede copiar y aprovecharlo para otras aplicaciones. Espero que te sea util.
    Downloads: 9 This Week
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