Best Open Source Windows Algorithms 2026

Algorithms for Windows

View 1975 business solutions

Algorithms Windows Clear Filters

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

Build Agents and Models on One Platform
Everything you need to build production-ready agents and models. Access 200+ Google and third-party AI models and tools.

Gemini Enterprise Agent Platform is Google Cloud's comprehensive platform for developers to build, scale, govern, and optimize agents and models. Choose from Google's most advanced models and third-party models like Anthropic's Claude Model Family.

Try It Free
$300 Free Credits to Build on Google Cloud
New to Google Cloud? Get $300 in credits to explore Compute Engine, BigQuery, Cloud Run, Gemini Enterprise Agent Platform, and more.

Start your next project with $300 in free Google Cloud credit. Spin up VMs, run containers, query petabytes in BigQuery, or build agents with Gemini Enterprise Agent Platform. Once your credits are used, keep building with 20+ always-free tier products including Compute Engine, Cloud Storage, GKE, and Cloud Run functions. No commitment required—just sign up and start building.

Claim $300 Free
1

TA-Lib: Technical Analysis Library

Technical analysis library with indicators like ADX, MACD, RSI, Stochastic, TRIX... includes also candlestick pattern recognition. Useful for trading application developpers using either Excel, .NET, Mono, Java, Perl or C/C++.

6 Reviews

Downloads: 8,967 This Week

Last Update: 2013-04-03
See Project
2

Clipper

Polygon and line clipping and offsetting library (C++, C#, Delphi)

This library is now obsolete and no longer being maintained. It has been superceded by my Clipper2 library - https://github.com/AngusJohnson/Clipper2.

37 Reviews

Downloads: 5,114 This Week

Last Update: 2024-01-09
See Project
3

lpsolve

Mixed Integer Linear Programming (MILP) solver.

Mixed Integer Linear Programming (MILP) solver lp_solve solves pure linear, (mixed) integer/binary, semi-cont and special ordered sets (SOS) models.lp_solve is written in ANSI C and can be compiled on many different platforms like Linux and WINDOWS This project is moved to github: https://lp-solve.github.io/

35 Reviews

Downloads: 3,990 This Week

Last Update: 2025-07-14
See Project
4

VISUALG 3.0

VISUALG versão 3.0.7.0 (última de revisão 21/03/2019) release OK

Autor ANTONIO CARLOS NICOLODI, 38 anos na área de informática como: Analista de sistemas, desenvolvedor de softwares em várias linguagens de programação: C++, Assembly, Pascal(Delphi), Basic, Cobol, Clipper, Java, etc. Refiz esta nova versão e estou disponibilizando GRÁTIS o: "VISUALG 3.0". Entre outras : (novo layout, nova roupagem até 05 tipos de peles) e novos comandos, também reconhece comandos em português correto: ( PARA ... FAÇA, SE .. ENTÃO .. SENÃO) e o operador lógico NÃO, mas em maiúsculo e os comandos antigos ainda são reconhecidos para manter a compatibilidade. Contactos por e-mail/twitter/Blog : E-mail:professor.antonio.nicolodi@gmail.com Twitter: @visualg30 Blog: http://antonionicolodi.blogspot.com.br/ Baixem e leiam o arquivo LEIA-ME.TXT ou LEIAME.TXT ou README.TXT Usem com sabedoria e bons estudos:

13 Reviews

Downloads: 3,204 This Week

Last Update: 2020-07-20
See Project
Custom VMs From 1 to 96 vCPUs With 99.95% Uptime
General-purpose, compute-optimized, or GPU/TPU-accelerated. Built to your exact specs.

Live migration and automatic failover keep workloads online through maintenance. One free e2-micro VM every month.

Try Free
5

LZ4

Extremely fast compression algorithm

LZ4 is lossless compression algorithm, providing compression speed > 500 MB/s per core (>0.15 Bytes/cycle). It features an extremely fast decoder, with speed in multiple GB/s per core (~1 Byte/cycle). A high compression derivative, called LZ4_HC, is available, trading customizable CPU time for compression ratio. LZ4 library is provided as open-source software using a BSD license. This benchmark simulates simple "static content transfer" scenario such as OS Kernel compression or video game's static assets (text/images/tables/scripts/etc) which loading from Flash Memory / HDD / SSD. In this case, compression time is completely ignored. Because only content developers compress the data at once and usually they don't care about its computational cost. But they always care end user's experience a.k.a. "loading time" and bandwidth. Please pay attention to "LZ4HC -9" which is quite faster than other methods.

Downloads: 233 This Week

Last Update: 2024-07-22
See Project
6

Real-ESRGAN

Real-ESRGAN aims at developing Practical Algorithms

Real-ESRGAN is a highly popular open-source project that provides practical algorithms for general image and video restoration using deep learning-based super-resolution techniques. It extends the original Enhanced Super-Resolution Generative Adversarial Network (ESRGAN) approach by training on synthetic degradations to make results more robust on real-world images, effectively enhancing resolution, reducing noise/artifacts, and reconstructing fine detail in low-quality imagery. The repository includes inference and training scripts, a model zoo with different pretrained models (including general and anime-oriented variants), and support for batch and arbitrary scaling, making it adaptable for diverse enhancement tasks. It emphasizes usability with utilities that handle alpha channels, gray/16-bit images, and tiled inference for large inputs, and can be run via Python scripts or portable executables.

Downloads: 213 This Week

Last Update: 2025-12-11
See Project
7

Arduino

Open-source electronics platform

Arduino is an open-source physical computing platform based on a simple I/O board and a development environment that implements the Processing/Wiring language. Arduino can be used to develop stand-alone interactive objects or can be connected to software on your computer (e.g. Flash, Processing and MaxMSP). The boards can be assembled by hand or purchased preassembled. Arduino is a popular tool for IoT product development as well as one of the most successful tools for STEM/STEAM education. Hundreds of thousands of designers, engineers, students, developers and makers around the world are using Arduino to innovate in music, games, toys, smart homes, farming, autonomous vehicles, and more. Arduino is the first widespread Open Source Hardware project and was set up to build a community that could help spread the use of the tool and benefit from contributions from hundreds of people who helped debug the code, write examples, create tutorials, etc.

1 Review

Downloads: 171 This Week

Last Update: 2021-12-21
See Project
8

RHash

RHash (Recursive Hasher) is a console utility for computing and verifying hash sums of files. It supports CRC32, CRC32C, MD4, MD5, SHA1, SHA256, SHA512, SHA3, AICH, ED2K, DC++ TTH, BTIH, Tiger, GOST R 34.11-2012, RIPEMD-160, HAS-160, EDON-R, and Whirlpool.

5 Reviews

Downloads: 1,032 This Week

Last Update: 2025-05-13
See Project
9

Armadillo

fast C++ library for linear algebra & scientific computing

* Fast C++ library for linear algebra (matrix maths) and scientific computing * Easy to use functions and syntax, deliberately similar to Matlab / Octave * Uses template meta-programming techniques to increase efficiency * Provides user-friendly wrappers for OpenBLAS, Intel MKL, LAPACK, ATLAS, ARPACK, SuperLU and FFTW libraries * Useful for machine learning, pattern recognition, signal processing, bioinformatics, statistics, finance, etc. * Downloads: http://arma.sourceforge.net/download.html * Documentation: http://arma.sourceforge.net/docs.html * Bug reports: http://arma.sourceforge.net/faq.html * Git repo: https://gitlab.com/conradsnicta/armadillo-code

Downloads: 3,291 This Week

Last Update: 2026-06-18
See Project
Cut Data Warehouse Costs by 54%
Easily migrate from Snowflake, Redshift, or Databricks with free tools.

BigQuery delivers 54% lower TCO with exabyte scale and flexible pricing. Free migration tools handle the SQL translation automatically.

Try Free
10

Real-ESRGAN ncnn Vulkan

NCNN implementation of Real-ESRGAN

Real-ESRGAN ncnn Vulkan is an optimized, cross-platform implementation of Real-ESRGAN using the ncnn neural network inference engine and Vulkan for hardware acceleration. Unlike the standard PyTorch-based Real-ESRGAN code, this variant is written in C/C++ and designed to run efficiently on many platforms (including Windows, Linux, and possibly Android) without requiring heavy frameworks like CUDA or Python. It provides command-line tools for upscaling images with selected models, allowing users to specify input/output paths, scaling factors, tile sizes, and model names from a compressed model set, which is particularly helpful for larger images or automated workflows. The Vulkan backend enables fast execution on GPUs from different vendors (Intel/AMD/Nvidia) with broad support, making it suitable for non-Python environments, production systems, or performance-constrained setups.

Downloads: 108 This Week

Last Update: 2025-12-11
See Project
11

GFPGAN

GFPGAN aims at developing Practical Algorithms

GFPGAN aims at developing Practical Algorithms for Real-world Face Restoration. Colab Demo for GFPGAN; (Another Colab Demo for the original paper model) Online demo: Huggingface (return only the cropped face) Online demo: Replicate.ai (may need to sign in, return the whole image). Online demo: Baseten.co (backed by GPU, returns the whole image). We provide a clean version of GFPGAN, which can run without CUDA extensions. So that it can run in Windows or on CPU mode. GFPGAN aims at developing a Practical Algorithm for Real-world Face Restoration. It leverages rich and diverse priors encapsulated in a pretrained face GAN (e.g., StyleGAN2) for blind face restoration. Add V1.3 model, which produces more natural restoration results, and better results on very low-quality / high-quality inputs.

Downloads: 63 This Week

Last Update: 2022-09-16
See Project
12

Zstandard

Zstandard - Fast real-time compression algorithm

Zstandard is a fast compression algorithm, providing high compression ratios. It also offers a special mode for small data, called dictionary compression. The reference library offers a very wide range of speed / compression trade-off, and is backed by an extremely fast decoder (see benchmarks below). Zstandard library is provided as open source software using a BSD license. Its format is stable and published as IETF RFC 8478. The negative compression levels, specified with --fast=#, offer faster compression and decompression speed in exchange for some loss in compression ratio compared to level 1, as seen in the table above. Zstd can trade compression speed for stronger compression ratios. It is configurable by small increment. Decompression speed is preserved and remain roughly the same at all settings, a property shared by most LZ compression algorithms, such as zlib or lzma.

Downloads: 54 This Week

Last Update: 2025-02-28
See Project
13

libmng

libmng -THE reference library for reading, displaying, writing and examining Multiple-Image Network Graphics. MNG is the animation extension to the popular PNG image-format.

Downloads: 1,196 This Week

Last Update: 2018-11-28
See Project
14

threadpool

threadpool is a cross-platform C++ thread pool library. It provides a convenient way for dispatching asynchronous tasks and can be easily customized. threadpool is based on the high-quality Boost source libraries.

4 Reviews

Downloads: 271 This Week

Last Update: 2013-04-17
See Project
15

MOA - Massive Online Analysis

Big Data Stream Analytics Framework.

A framework for learning from a continuous supply of examples, a data stream. Includes classification, regression, clustering, outlier detection and recommender systems. Related to the WEKA project, also written in Java, while scaling to adaptive large scale machine learning.

4 Reviews

Downloads: 156 This Week

Last Update: 2024-07-20
See Project
16

Anime4K

Anime4K is an open-source, high-quality anime upscaling algorithm

SISR algorithm designed to work with Japanese animation and cartoons to generate high-resolution images from a low-resolution input.

Downloads: 20 This Week

Last Update: 2023-09-07
See Project
17

Pascal XE

Pascal XE is an easy to use IDE for Pascal programming.

Pascal XE is an IDE for Pascal programming, it is user friendly and designed specially for beginners in programming. Pascal XE includes 3 free compilers: - Virtual Pascal Compiler 2.1.279 (default) - Free Pascal Compiler 3.0.4 - GNU Pascal Compiler 20070904

7 Reviews

Downloads: 255 This Week

Last Update: 2022-01-25
See Project
18

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.

4 Reviews

Downloads: 103 This Week

Last Update: 2026-02-11
See Project
19

IHC Profiler

A plugin for the quantitative analysis of Immunohistochemistry samples

Identification and scoring of cancer markers by Immunohistochemistry has been shown to be of value in determining the aggressiveness of specific cancers, as well as in predicting patient outcome for many cancer types. Despite its routine clinical use, a problem with the standard scoring method is the inherent subjectivity and variability of purely visual inspection. To diminish this visual perception biasing, IHC profiler has been developed as a standard automated scoring tool. -x-x-x-x-x-x-x- Full Publication and Citation: Varghese F, Bukhari AB, Malhotra R, De A (2014) IHC Profiler: An Open Source Plugin for the Quantitative Evaluation and Automated Scoring of Immunohistochemistry Images of Human Tissue Samples. PLoS ONE 9(5): e96801. doi:10.1371/journal.pone.0096801 Link: http://www.plosone.org/article/info%3Adoi%2F10.1371%2Fjournal.pone.0096801 -x-x-x-x-x-x-x- Your feedback would be highly appreciated. Please rate so we can work on improving it further. Thank you!

2 Reviews

Downloads: 116 This Week

Last Update: 2014-05-09
See Project
20

AlphaZero.jl

A generic, simple and fast implementation of Deepmind's AlphaZero

Beyond its much publicized success in attaining superhuman level at games such as Chess and Go, DeepMind's AlphaZero algorithm illustrates a more general methodology of combining learning and search to explore large combinatorial spaces effectively. We believe that this methodology can have exciting applications in many different research areas. Because AlphaZero is resource-hungry, successful open-source implementations (such as Leela Zero) are written in low-level languages (such as C++) and optimized for highly distributed computing environments. This makes them hardly accessible for students, researchers and hackers. Many simple Python implementations can be found on Github, but none of them is able to beat a reasonable baseline on games such as Othello or Connect Four. As an illustration, the benchmark in the README of the most popular of them only features a random baseline, along with a greedy baseline that does not appear to be significantly stronger.

Downloads: 12 This Week

Last Update: 2025-12-12
See Project
21

WOFF2

This document documents how to run the compression reference code

woff2 is Google’s reference implementation of the WOFF2 webfont format, the modern, highly compressed container used by browsers to ship OpenType/TrueType fonts efficiently over the network. It integrates specialized transforms for font tables (like glyf/loca and variations data) with Brotli compression to squeeze out as many bytes as possible while preserving exact font fidelity on decode. The repository includes a compact C/C++ library and small command-line tools so you can convert existing TTF/OTF files to WOFF2 and back for testing or build pipelines. Its encoder applies deterministic, spec-compliant transformations that maximize compressibility without altering rendering results, making it safe for production web delivery. The decoder is just as strict, validating headers and table checksums to guard against malformed inputs. Because WOFF2 is now ubiquitous across browsers and CDNs, this repo often serves as the canonical baseline for tooling.

Downloads: 12 This Week

Last Update: 2025-10-10
See Project
22

ImageAI

A python library built to empower developers

ImageAI is an easy-to-use Computer Vision Python library that empowers developers to easily integrate state-of-the-art Artificial Intelligence features into their new and existing applications and systems. It is used by thousands of developers, students, researchers, tutors and experts in corporate organizations around the world. You will find features supported, links to official documentation as well as articles on ImageAI. ImageAI is widely used around the world by professionals, students, research groups and businesses. ImageAI provides API to recognize 1000 different objects in a picture using pre-trained models that were trained on the ImageNet-1000 dataset. The model implementations provided are SqueezeNet, ResNet, InceptionV3 and DenseNet. ImageAI provides API to detect, locate and identify 80 most common objects in everyday life in a picture using pre-trained models that were trained on the COCO Dataset.

Downloads: 11 This Week

Last Update: 2022-12-21
See Project
23

Swift Algorithms

Commonly used sequence and collection algorithms for Swift

Swift Algorithms is an open-source package of sequence and collection algorithms, along with their related types. Algorithms are powerful tools for thought because they encapsulate difficult-to-read and error-prone raw loops. The Algorithms package includes a host of powerful, generic algorithms frequently found in other popular programming languages. We hope this new package will help people embrace algorithms, improving the correctness and performance of their code. With the Algorithms package’s initial set of sequence and collection operations, you can cycle over a collection’s elements, find combinations and permutations, create a random sample, and more. One inclusion is a pair of chunked methods, each of which break a collection into consecutive subsequences. One version tests adjacent elements to find the breaking point between chunks, you can use it to quickly separate an array into ascending runs.

Downloads: 11 This Week

Last Update: 2025-02-10
See Project
24

dlib C++ Library

Dlib is a C++ toolkit containing machine learning algorithms and tools for creating complex software in C++ to solve real world problems.

21 Reviews

Downloads: 40 This Week

Last Update: 2025-05-28
See Project
25

JTS Topology Suite

The JTS Topology Suite is an API for modelling and manipulating 2-dimensional linear geometry. It provides numerous geometric predicates and functions. JTS conforms to the Simple Features Specification for SQL published by the Open GIS Consortium.

22 Reviews

Downloads: 24 This Week

Last Update: 2016-01-19
See Project