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

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  • 1
    Monia Suite
    La suite logicielle Monia est destinée à l'apprentissage de l'algorithmique en français. Elle permet de fabriquer un exécutable à partir d'un organigramme, en passant par un programme procédural écrit en pseudo-langage.
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    Downloads: 3 This Week
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  • 2
    C++ Revenue Management Open Library
    That project (RMOL) aims at giving developers concerned by the Revenue Management arena a library delivering a reference implementation for most of the published algorithms and methods. That library is intended to be used in simulated environment: it does not intend to be used in real world production systems.
    Downloads: 4 This Week
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  • 3

    ExRandom

    Sampling exactly from the normal and exponential distributions

    ExRandom is a small header-only C++11 library for exact sampling from the normal, exponential, and discrete normal distributions (provided that the underlying generator is perfect). This library provides an implementation of the algorithms described in C. F. F. Karney, Sampling exactly from the normal distribution, ACM Trans. Math. Software 42(1), 3:1-14 (Jan. 2016), https://doi.org/10.1145/2710016, https://arxiv.org/abs/1303.6257.
    Downloads: 4 This Week
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  • 4
    psimpl - generic n-dimensional polyline simplification. psimpl is a lightweight C++ library that is generic, easy to use, and supports multiple simplification algorithms, including Douglas-Peucker.
    Downloads: 4 This Week
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  • 5
    Multicore SWARM
    Multicore SWARM (Software and Algorithms for Running on Multicore Processors) is an open source library for developing efficient and portable implementations that make use of multi-core processors. David A. Bader (Georgia Tech) began SWARM in 1994.
    Downloads: 2 This Week
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  • 6
    Open Metaheuristic (oMetah) is a library aimed at the conception and the rigourous testing of metaheuristics (i.e. genetic algorithms, simulated annealing, ...). The code design is separated in components : algorithms, problems and a test report generator
    Downloads: 3 This Week
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  • 7
    PHPXref is a developers tool, written in Perl, that will cross reference and extract inline documentation from a collection of PHP scripts. It generates simple HTML output suitable for browsing offline.
    Downloads: 1 This Week
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  • 8
    a framework library with a template method interface and inheritable classes for an executable process design which produces an executable which is both a GUI and a console application. It provides multi-threading for work items of the provider process .
    Downloads: 2 This Week
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  • 9
    LSGTL means LLX’s Static Graph Template Library which is a light-weighted header-only template library developed mainly for static graph analysis. LSGTL is expected to be used in laboratories for research purposes mostly.
    Downloads: 2 This Week
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  • 10
    Open Hacking GateWay Client Crypto

    Open Hacking GateWay Client Crypto

    Open Source HGWC's Encryption

    This anti-cheating software is used by S4 League client to interface and check in real time XTRAP's features and to report the logs to their remote servers. Details: HGWC Version: 57 Protocol Version: 7
    Downloads: 2 This Week
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  • 11
    PetoronHash-System

    PetoronHash-System

    PHASH | post-quantum XOF hashing algorithm | C++20

    PHASH is a self-contained, dependency-free, post-quantum XOF hashing algorithm implemented in modern C++20. This release delivers the first fully stable production implementation of the PetoronHash-System — a 1600-bit sponge-based hash function with domain separation, extendable output, and deterministic behavior. Key Features No external dependencies — pure C++20 implementation. Extendable Output (XOF) — supports arbitrary output length (256–8192+ bits). Post-quantum oriented design — ARX-based sponge resistant to Grover-type attacks. Context and salt separation — unique hashing domains for each use-case. Optimized performance — ~120–130 MB/s Comprehensive verification — verify_all.sh performs KAT tests, determinism checks, and performance validation. Verification Script: chmod +x verify_all.sh ./verify_all.sh https://github.com/01alekseev/PetoronHash-System Ivan Alekseev | petoron.org
    Downloads: 2 This Week
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  • 12
    Rupantor- Bijoy to Unicode converter. It converts Bengali texts written in Bijoy fonts to UNICODE. রূপান্তর- বিজয় থেকে ইউনিকোড এ পরিবর্তন করার সফটওয়ার। এটি à
    Downloads: 2 This Week
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  • 13
    XOR encrypt v2.0

    XOR encrypt v2.0

    Encrypt Your Text documents with XOR encryption

    This software provides an easy graphical way to encrypt your text documents from source code , text files ,scripts even jpeg files .It is a enhanced version of my earlier project https://sourceforge.net/p/xorencrypt which used win32 GUI . This is a demonstration of working of XOR encryption which was used by Germans in World War II (http://en.wikipedia.org/wiki/Lorenz_cipher) . Besides from XOR'ing the message with password after every encryption the key changes pseudorandomly. The password you provide is hashed ( SHA256 ) and saved into the encrypted file to check if the password provided is correct.This algorithm has limitations in general more the numbers of relative characters in the password to plaintext more secure will be the encryption. XOR encrypt has a 3.5 of 5 editors rating from softpedia http://www.softpedia.com/get/Security/Encrypting/XOR-Encrypt.shtml
    Downloads: 2 This Week
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  • 14

    ccgsl

    Use Gnu Scientific Library as if it were writtem in C++.

    The ccgsl provides simple C++ wrappers for the GNU Scientific Library. It uses Java-like shared-pointer classes in place of structs to avoid direct memory allocation/freeing and to work better with the STL. It lets you construct functions for optimisation, root-finding and the like from C++ member functions, making it easier to integrate with existing C++ code. It also provides C++ exceptions.
    Downloads: 2 This Week
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  • 15
    (Production / Stable) Command line tool to compute the 64 bit CRC of one or more files.
    Downloads: 2 This Week
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  • 16
    CLAW is a C++ Library providing various tools in different domains, like a Tweener framework, Bézier curves manipulation, a map with multiple value types, a binary search tree container implemented as an AVL and an implementation of the sockets as std::stream. The library also includes a set of classes to easily load and write png, jpeg, gif files and other image formats. Finally, a part of the library is devoted to artificial intelligence in games and includes a generic alpha-beta algorithm. Each module is provided with an example program.
    Downloads: 2 This Week
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  • 17
    This is a header-only memory pool library for C++
    Downloads: 2 This Week
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  • 18
    An implementation of memory-prediction framework applied for image recognition. Based on Jeff Hawkins' book On Intelligence. It models the high-level hierarchical architecture of human neocortex and uses Bayesian belief revision for making predictions
    Downloads: 1 This Week
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  • 19

    PdfPageCounter

    C++ code to count the number pages in a given PDF file.

    This C++ library contains the 'PdfPageCount' class that performs the single task of finding the number of pages in a given PDF document. While the PdfPageCount class is very simple to use, the contained code is complex because the page count can be hidden in any number of places, quite often within compressed data.
    Downloads: 1 This Week
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  • 20

    RPnP-C++

    RPnP C++ implemention

    I have written the code of RPnP available at http://xuchi.weebly.com/uploads/5/6/7/3/5673896/rpnp1.0.zip in C++ with the help of OpenCV
    Downloads: 1 This Week
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  • 21
    The package implements a variety of tools for categorization of multivariate data such as boosted decision trees, bagging and random forest, bump hunting (PRIM), a multi-class learner and others.
    Downloads: 1 This Week
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  • 22
    VR Mosaic :: C++ Builder Applet

    VR Mosaic :: C++ Builder Applet

    VR Mosaic - C++ Builder Applet v.2.5

    Vincent Radio {Adrix.NT} VR Mosaic for C++ : C++ Builder VCL Applet - v.2.5 Smart Sliding Cells Game for Windows sources & build project included also demonstartes the use of a 2D matrix implemented as a dynamic vector (*) now it supports changing the Visual Style (*) now it includes a smart automatic resolver !! please, let me know what you think about this project adrixnt@hotmail.it skype: adrixnt
    Downloads: 1 This Week
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  • 23
    Downloads: 2 This Week
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  • 24
    An interactive binary search tree. The user may interact with the tree by performing rotations, balancing, insertions, and deletions. For educational purposes
    Downloads: 1 This Week
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  • 25
    Arageli is a C++ library for computations in arithmetic, algebra, geometry, linear and integer linear programming. Arageli provides routines and classes that support precise, i.e. symbolic or algebraic, computations.
    Downloads: 1 This Week
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