Top 23 C++ Machine Learning Projects

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1. tensorflow

   1 241 195,308 10.0 C++

   An Open Source Machine Learning Framework for Everyone

   

   Project mention: The $100 ChatGPT: Why Karpathy's nanochat Represnts the Next Big Thing | dev.to | 2026-05-04

   TensorFlow: 2.1 million lines

2. SaaSHub

   www.saashub.com featured

   SaaSHub - Software Alternatives and Reviews. SaaSHub helps you find the best software and product alternatives

   

3. tesseract-ocr

   2 133 74,518 8.3 C++

   Tesseract Open Source OCR Engine (main repository)

   

   Project mention: DeepSeek OCR | news.ycombinator.com | 2025-10-19

   How does it compare to Tesseract? https://github.com/tesseract-ocr/tesseract

   I use ocrmypdf (which uses Tesseract). Runs locally and is absolutely fantastic. https://ocrmypdf.readthedocs.io/en/latest/

4. mediapipe

   3 56 35,461 9.8 C++

   Cross-platform, customizable ML solutions for live and streaming media.

   

   Project mention: Building a Jedi-Style Hand Gesture Interface with TensorFlow.js: Control Your Browser Without Touching Anything | dev.to | 2026-02-09

   In this tutorial, I'll show you how to build a production-ready hand gesture control system using TensorFlow.js and MediaPipe Hands that transforms any webcam into a precision input device.

5. Caffe

   4 6 34,622 0.0 C++

   Caffe: a fast open framework for deep learning.

   

6. C-Plus-Plus

   5 3 34,302 8.1 C++

   Collection of various algorithms in mathematics, machine learning, computer science and physics implemented in C++ for educational purposes.

   

7. openpose

   6 37 34,056 4.3 C++

   OpenPose: Real-time multi-person keypoint detection library for body, face, hands, and foot estimation

   

   Project mention: Mastering OpenPose Keypoint Detection: The Ultimate Guide | dev.to | 2025-10-08

   OpenPose GitHub Repository - Official implementation and examples

8. xgboost

   7 16 28,431 9.6 C++

   Scalable, Portable and Distributed Gradient Boosting (GBDT, GBRT or GBM) Library, for Python, R, Java, Scala, C++ and more. Runs on single machine, Hadoop, Spark, Dask, Flink and DataFlow

   

   Project mention: Built a Hospital Lenght Of Stay Predictor Web app | dev.to | 2026-02-15

9. FinceptTerminal

   8 14 24,566 9.8 C++

   FinceptTerminal is a modern finance application offering advanced market analytics, investment research, and economic data tools, designed for interactive exploration and data-driven decision-making in a user-friendly environment.

   

   Project mention: Fincept Terminal | news.ycombinator.com | 2026-04-20

10. PaddlePaddle

    9 9 23,924 10.0 C++

    PArallel Distributed Deep LEarning: Machine Learning Framework from Industrial Practice （『飞桨』核心框架，深度学习&机器学习高性能单机、分布式训练和跨平台部署）

    

11. onnxruntime

    10 78 20,726 10.0 C++

    ONNX Runtime: cross-platform, high performance ML inferencing and training accelerator

    

    Project mention: I Built a Neural Network Engine in C# That Runs in Your Browser - No ONNX Runtime, No JavaScript Bridge, No Native Binaries | dev.to | 2026-05-23

    Half of the answer is technical curiosity. The other half is that the current ML-in-the-browser landscape is dominated by ONNX Runtime Web, which has a fundamental WebGPU device-sharing bug that's been ignored for six months (microsoft/onnxruntime#26107). That bug is a wall for anyone trying to ship more than one model in a single browser session. It pushed me from "I wonder if I could do this" to "I'm doing this."

12. video2x

    11 109 20,045 5.2 C++

    A machine learning-based video super resolution and frame interpolation framework. Est. Hack the Valley II, 2018.

    

    Project mention: 10 Powerful Open Source AI Tools You Won’t Believe Are Still Free in 2026 | dev.to | 2025-11-03

    GitHub Repository: https://github.com/k4yt3x/video2x

13. LightGBM

    12 13 18,425 9.1 C++

    A fast, distributed, high performance gradient boosting (GBT, GBDT, GBRT, GBM or MART) framework based on decision tree algorithms, used for ranking, classification and many other machine learning tasks.

    

    Project mention: 《LightGBM: 一种高效的梯度提升决策树算法》论文（A Highly Efficient Gradient Boosting Decision Tree） | dev.to | 2025-10-15

    代码：https://github.com/microsoft/LightGBM

14. MNN

    13 6 15,411 9.8 C++

    MNN: A blazing-fast, lightweight inference engine battle-tested by Alibaba, powering high-performance on-device LLMs and Edge AI.

    

    Project mention: MNN – fast, lightweight deep learning framework | news.ycombinator.com | 2026-01-21

15. ggml

    14 76 14,768 9.9 C++

    Tensor library for machine learning

    

    Project mention: Local LLM Inference on Windows 11 and AMD GPU using WSL and llama.cpp | dev.to | 2026-03-04

    Manifesto / ggml / ops

16. Dlib

    15 34 14,393 7.7 C++

    A toolkit for making real world machine learning and data analysis applications in C++

    

17. Open3D

    16 12 13,669 8.1 C++

    Open3D: A Modern Library for 3D Data Processing

    

    Project mention: Processing Point Clouds with Python: A Beginner’s Guide | dev.to | 2025-08-21

    The most popular library for point cloud processing in Python is Open3D.

18. oneflow

    17 32 9,398 5.5 C++

    OneFlow is a deep learning framework designed to be user-friendly, scalable and efficient.

    

19. deeplake

    18 15 9,153 9.3 C++

    Deeplake is AI Data Runtime for Agents. It provides serverless postgres with a multimodal datalake, enabling scalable retrieval and training.

    

    Project mention: What I Learned Comparing Zilliz Cloud and Deep Lake for Scalable Vector Search | dev.to | 2025-06-09

    As I scaled up a semantic search engine for multi-modal content, I found myself at a fork in the road. Should I lean into a purpose-built vector database like Zilliz Cloud, or embrace a more flexible data lake approach with Deep Lake? These tools promise vector search at scale—but they come from fundamentally different architectural philosophies.

20. catboost

    19 9 8,973 9.8 C++

    A fast, scalable, high performance Gradient Boosting on Decision Trees library, used for ranking, classification, regression and other machine learning tasks for Python, R, Java, C++. Supports computation on CPU and GPU.

    

21. jetson-inference

    20 11 8,874 3.9 C++

    Hello AI World guide to deploying deep-learning inference networks and deep vision primitives with TensorRT and NVIDIA Jetson.

    

22. vowpal_wabbit

    21 11 8,681 9.2 C++

    Vowpal Wabbit is a machine learning system which pushes the frontier of machine learning with techniques such as online, hashing, allreduce, reductions, learning2search, active, and interactive learning.

    

23. CCV

    22 3 7,217 9.7 C++

    C-based/Cached/Core Computer Vision Library, A Modern Computer Vision Library

    

24. interpret

    23 6 6,868 9.4 C++

    Fit interpretable models. Explain blackbox machine learning.

    

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