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Deep Learning Model Convertors

Note: This is not one convertor for all frameworks, but a collection of different converters. Because github is an open source platform, I hope we can help each other here, gather everyone's strength.

Because of these different frameworks, the awesome convertors of deep learning models for different frameworks occur. It should be noted that I did not test all the converters, so I could not guarantee that each was available. But I also hope this convertor collection may help you!

The sheet below is a overview of all convertors in github (not only contain official provided and more are user-self implementations). I just make a little work to collect these convertors. Also, hope everyone can support this project to help more people who're also crazy because of various frameworks.

convertormxnetcaffe :sparkles:caffe2CNTKtheano/lasagneneonpytorch:sparkles:torchkeras :sparkles:darknettensorflow :sparkles:chainercoreML/iOS :sparkles:paddleONNX
mxnet-MMdnn MXNet2Caffe Mxnet2CaffeMMdnn (through ONNX)MMdnnNoneNoneMMdnn gluon2pytorchNoneMMdnnNoneMMdnnNonemxnet-to-coreml MMdnnNoneNone
caffe :sparkles:mxnet/tools/caffe_converter ResNet_caffe2mxnet MMdnn-CaffeToCaffe2 MMdnn (through ONNX)crosstalkcaffe/CaffeConverter MMdnncaffe_theano_conversion caffe-model-convert caffe-to-theanocaffe2neonMMdnn pytorch-caffe pytorch-resnetgooglenet-caffe2torch mocha loadcaffekeras-caffe-converter caffe_weight_converter caffe2keras nn_tools keras caffe2keras Deep_Learning_Model_Converter MMdnnpytorch-caffe-darknet-convertMMdnn nn_tools caffe-tensorflowNoneCoreMLZoo apple/coremltools MMdnnX2Paddlecaffe2onnx
caffe2NoneNone-ONNXNoneNoneONNXNoneNoneNoneNoneNoneNoneNoneNone
CNTKMMdnnMMdnnONNX MMdnn (through ONNX)-NoneNoneONNX MMdnnNoneMMdnnNoneMMdnnNoneMMdnnNoneNone
theano/lasagneNoneNoneNoneNone  -  NoneNoneNoneNoneNoneNoneNoneNoneNoneNone
neonNoneNoneNoneNoneNone-NoneNoneNoneNoneNoneNoneNoneNoneNone
pytorch :sparkles:MMdnnbrocolli PytorchToCaffe MMdnn pytorch2caffe pytorch-caffe-darknet-convertonnx-caffe2 MMdnn (through ONNX)ONNX MMdnnNoneNone-NoneMMdnn pytorch2keras nn-transferpytorch-caffe-darknet-convertMMdnn pytorch2keras (over Keras) pytorch-tfNoneMMdnn onnx-coremlNoneNone
torchNonefb-caffe-exts/torch2caffe mocha trans-torch th2caffeTorch2Caffe2NoneNoneNoneconvert_torch_to_pytorch-NoneNoneNoneNonetorch2coreml torch2iosNoneNone
keras :sparkles:MMdnnkeras-caffe-converter MMdnn nn_tools keras2caffeMMdnn (through ONNX)MMdnnNoneNoneMMdnn nn-transferNone-Nonenn_tools convert-to-tensorflow keras_to_tensorflow keras_to_tensorflow MMdnnNoneapple/coremltools :sparkles: model-converters keras_models MMdnnNoneNone
darknetNonepytorch-caffe-darknet-convertNoneMMdnnNoneNonepytorch-caffe-darknet-convertNoneMMdnn  -  DW2TF darkflow lego_yoloNoneNoneNoneNone
tensorflow :sparkles:MMdnnMMdnn nn_toolsMMdnn (through ONNX)crosstalk MMdnnNoneNonepytorch-tf MMdnnNonemodel-converters nn_tools convert-to-tensorflow MMdnnNone-Nonetfcoreml MMdnnX2PaddleNone
chainerNoneNoneNoneNoneNoneNonechainer2pytorchNoneNoneNoneNone-NoneNoneNone
coreML/iOS :sparkles:MMdnnMMdnnMMdnn (through ONNX)MMdnnNoneNoneMMdnnNoneMMdnnNoneMMdnnNone-None
paddleNoneNoneNoneNoneNoneNoneNoneNoneNoneNoneNoneNoneNone-None
ONNXNoneNoneNoneNoneNoneNoneonnx2torch onnx2torchNoneNoneNoneNoneNoneNoneX2Paddle-

Brief Intro of Convertors

Open Neural Network Exchange

General framework for converting between all kinds of neural networks

ONNX is an effort to unify converters for neural networks in order to bring some sanity to the NN world. Released by Facebook and Microsoft. More info here.

MMdnn

MMdnn is a set of tools to help users inter-operate among different deep learning frameworks. E.g. model conversion and visualization. Convert models between CaffeEmit, CNTK, CoreML, Keras, MXNet, ONNX, PyTorch and TensorFlow.

<img src="https://github.com/Microsoft/MMdnn/blob/master/docs/supported.jpg" width="400" height="400">

MXNet convertor

Convert to MXNet model.

mdering/CoreMLZoo: A few models converted from caffe to CoreMLs format

A few deep learning models converted from various formats to CoreMLs format. Models currently available:

mxnet/tools/caffe_converter

Key topics covered include the following:

nicklhy/ResNet_caffe2mxnet

This is a tool to convert the deep-residual-networks from caffe model to mxnet model. The weights are directly copied from caffe network blobs.

Caffe convertor

Convert to Caffe model.

keras-caffe-converter

It is a converter between Keras and Caffe in both ways. It works using only the Keras model to generate both the caffemodel and prototxt files, but it is also possible to pass it the prototxt file with the description of the model if you have it.

brocolli

Support 1.9.0 or higher Pytorch

pytorch2caffe

Convert PyTorch model to Caffemodel.

cypw/MXNet2Caffe

Convert MXNet model to Caffe model.

wranglerwong/Mxnet2Caffe: Convert MXNet model to Caffe model

Convert MXNet model to Caffe model.

kuangliu/mocha

Convert torch model to/from caffe model easily.

uhfband/keras2caffe: Keras to Caffe model converter tool

This tool tested with Caffe 1.0, Keras 2.1.2 and TensorFlow 1.4.0

Working conversion examples:

Problem layers:

facebook/fb-caffe-exts/torch2caffe

Some handy utility libraries and tools for the Caffe deep learning framework, which has ** A library for converting pre-trained Torch models to the equivalent Caffe models.**

pytorch-caffe-darknet-convert

Convert between pytorch, caffe and darknet models. Caffe darknet models can be load directly by pytorch.

Teaonly/trans-torch

Translating Torch model to other framework such as Caffe, MxNet ...

e-lab/th2caffe

A torch-nn to caffe converter for specific layers.

hahnyuan/nn_tools

a neural network convertor for models among caffe tensorflow keras

xxradon/PytorchToCaffe: Pytorch model to caffe model, supported pytorch 0.3, 0.3.1, 0.4, 0.4.1 ,1.0 , 1.0.1 , 1.2 ,1.3 .notice that only pytorch 1.1 have some bugs

Providing a tool for neural network frameworks for pytorch and caffe.

The nn_tools is released under the MIT License (refer to the LICENSE file for details).

features:

  1. Converting a pytorch model to caffe model.
  2. Some convenient tools of manipulate caffemodel and prototxt quickly(like get or set weights of layers).
  3. Support pytorch version >= 0.2.(Have tested on 0.3,0.3.1, 0.4, 0.4.1 ,1.0, 1.2)
  4. Analysing a model, get the operations number(ops) in every layers.
    Noting: pytorch version 1.1 is not supported now

requirements

  1. Python2.7 or Python3.x
  2. Each functions in this tools requires corresponding neural network python package (pytorch and so on).

Caffe2 convertor

Convert to Caffe2 model.

CaffeToCaffe2

This is an official convertor, which not only provoide a script also an ipython notebook as below:

onnx-caffe2

Convert PyTorch to Caffe2 (making it especially easy to deploy on mobile devices)

CNTK convertor

Convert to CNTK model.

crosstalkcaffe/CaffeConverter

The tool will help you convert trained models from Caffe to CNTK.

Convert trained models: giving a model script and its weights file, export to CNTK model.

crosstalk

crosstalk is from CNTK contrib.

Theano/Lasagne convertor

Convert to Theano/Lasagne model.

an-kumar/caffe-theano-conversion

This is part of a project for CS231N at Stanford University, written by Ankit Kumar, Mathematics major, Class of 2015

This is a repository that allows you to convert pretrained caffe models into models in Lasagne, a thin wrapper around Theano. You can also convert a caffe model's architecture to an equivalent one in Lasagne. You do not need caffe installed to use this module.

Currently, the following caffe layers are supported:

* Convolution
* LRN
* Pooling
* Inner Product
* Relu
* Softmax

kencoken/caffe-model-convert

Convert models from Caffe to Theano format.

piergiaj/caffe-to-theano

Convert a Caffe Model to a Theano Model. This currently works on AlexNet, but should work for any Caffe model that only includes layers that have been impemented.

Neon convertor  

Convert to Neon model.

NervanaSystems/caffe2neon

Tools to convert Caffe models to neon's serialization format.

This repo contains tools to convert Caffe models into a format compatible with the neon deep learning library. The main script, "decaffeinate.py", takes as input a caffe model definition file and the corresponding model weights file and returns a neon serialized model file. This output file can be used to instantiate the neon Model object, which will generate a model in neon that should replicate the behavior of the Caffe model.

PyTorch convertor  

Convert to PyTorch model.

nerox8664/gluon2pytorch

Convert mxnet / gluon graph to PyTorch source + weights.

ruotianluo/pytorch-resnet

Convert resnet trained in caffe to pytorch model.

clcarwin/convert_torch_to_pytorch

Convert torch t7 model to pytorch model and source.

vzhong/chainer2pytorch

chainer2pytorch implements conversions from Chainer modules to PyTorch modules, setting parameters of each modules such that one can port over models on a module basis.

pytorch-caffe

Load caffe prototxt and weights directly in pytorch without explicitly converting model from caffe to pytorch.

nn-transfer

Convert between Keras and PyTorch models.

Torch convertor  

Convert to Torch model.

kmatzen/googlenet-caffe2torch

Converts bvlc_googlenet.caffemodel to a Torch nn model.

Want to use the pre-trained GoogLeNet from the BVLC Model Zoo in Torch? Do you not want to use Caffe as an additional dependency inside Torch? Use these two scripts to build the network definition in Torch and copy the learned weights from the Caffe model.

kuangliu/mocha

Convert torch model to/from caffe model easily.

szagoruyko/loadcaffe

Convert caffe model to a Torch nn.Sequential model.

Keras convertor  

Convert to Keras model.

AlexPasqua/keras-caffe-converter

It is a both-ways converter between Keras and Caffe. It takes the weights from the .caffemodel using caffe_weight_converter and generates an equivalent Keras model. It also outputs the Python source code used to generate that Keras model.

AlexPasqua/caffe_weight_converter

This project is used as a part of the previous one on this list: AlexPasqua/keras-caffe-converter, which is more complete, documented and easy to use. I'd recommend using that one instead.<br> This is a Caffe-to-Keras weight converter, i.e. it converts .caffemodel weight files to Keras-2-compatible HDF5 weight files. It can also export .caffemodel weights as Numpy arrays for further processing.

This converter converts the weights of a model only (not the model definition), which has the great advantage that it doesn't break every time it encounters an unknown layer type like other converters to that try to translate the model definition as well. The downside, of course, is that you'll have to write the model definition yourself.

The repository also provides converted weights for some popular models.

qxcv/caffe2keras

Note: This converter has been adapted from code in Marc Bolaños fork of Caffe. See acks for code provenance.

This is intended to serve as a conversion module for Caffe models to Keras models.

Please, be aware that this module is not regularly maintained. Thus, some layers or parameter definitions introduced in newer versions of either Keras or Caffe might not be compatible with the converter. Pull requests welcome!

hahnyuan/nn_tools

a neural network convertor for models among caffe tensorflow keras

MarcBS/keras

Keras' fork with several new functionalities. Caffe2Keras converter, multimodal layers, etc. https://github.com/MarcBS/keras

This fork of Keras offers the following contributions:

Caffe to Keras conversion module Layer-specific learning rates New layers for multimodal data Contact email: marc.bolanos@ub.edu

GitHub page: https://github.com/MarcBS

MarcBS/keras is compatible with: Python 2.7 and Theano only.

OdinLin/caffe2keras

a simple tool to translate caffe model to keras model.

jamescfli/Deep_Learning_Model_Converter

nn-transfer

Convert between Keras and PyTorch models.

pytorch2keras

Convert pytorch models to Keras.

Darknet convertor  

Convert to Darknet model.

pytorch-caffe-darknet-convert

Convert between pytorch, caffe and darknet models. Caffe darknet models can be load directly by pytorch.

TensorFlow convertor  

Convert to TensorFlow model.

crosstalk

crosstalk is from CNTK.

triagemd/model-converters: Tools for converting Keras models for use with other ML frameworks

Tools for converting Keras models for use with other ML frameworks (coreML, TensorFlow).

hahnyuan/nn_tools

a neural network convertor for models among caffe tensorflow keras

ethereon/caffe-tensorflow: Caffe models in TensorFlow

Convert Caffe models to TensorFlow.

goranrauker/convert-to-tensorflow

Converts a variety of trained models to a frozen tensorflow protocol buffer file for use with the c++ tensorflow api. C++ code is included for using the frozen models.

thtrieu/darkflow

Translate darknet to tensorflow. Load trained weights, retrain/fine-tune using tensorflow, export constant graph def to mobile devices.

dEcmir/lego_yolo

Tensorflow code to to retrain yolo on a new dataset using weights from darknet

This repository contains experiments of transfer learning using YOLO on a new synthetical LEGO data set ROUGH AND UNDOCUMENTED!

alanswx/keras_to_tensorflow

Convert keras models to tensorflow frozen graph for use on cell phones, etc.

amir-abdi/keras_to_tensorflow

General code to convert a trained keras model into an inference tensorflow model.

leonidk/pytorch-tf

Converting a pretrained pytorch model to tensorflow

pytorch2keras

Convert pytorch models to Tensorflow (via Keras)

jinyu121/DW2TF: Darknet Weights to TensorFlow

This is a simple convector which converts Darknet weights file (.weights) to Tensorflow weights file (.ckpt).

leonidk/pytorch-tf

No readme.

Chainer convertor  

Convert to Chainer model.

coreML convertor  

Convert to coreML model.

Apple: Converting Trained Models to Core ML

Convert trained models created with third-party machine learning tools to the Core ML model format.

If your model is created and trained using a supported third-party machine learning tool, you can use Core ML Tools to convert it to the Core ML model format. Table 1 lists the supported models and third-party tools.

Model typeSupported modelsSupported tools
Neural networksFeedforward, convolutional, recurrentCaffe v1 <br/>Keras 1.2.2+
Tree ensemblesRandom forests, boosted trees, decision treesscikit-learn 0.18 <br/>XGBoost 0.6
Support vector machinesScalar regression, multiclass classificationscikit-learn 0.18<br/>LIBSVM 3.22
Generalized linear modelsLinear regression, logistic regressionscikit-learn 0.18
Feature engineeringSparse vectorization, dense vectorization, categorical processingscikit-learn 0.18
Pipeline modelsSequentially chained modelsscikit-learn 0.18

mxnet/tools/mxnet-to-coreml

Convert MXNet models into Apple CoreML format. This tool helps convert MXNet models into Apple CoreML format which can then be run on Apple devices.

prisma-ai/torch2coreml: Torch7 -> CoreML

This tool helps convert Torch7 models into Apple CoreML format which can then be run on Apple devices.

woffle/torch2ios: Torch7 Library - Convert NN Models To iOS Format

Torch7 Library - Convert NN Models To iOS Format.

Small lib to serialise Torch7 Networks for iOS. Supported Layers include Fully Connected, Pooling and Convolution Layers at present. The library stores the weights & biases (if any) for each layer necesarry for inference on iOS devices.

Bulochkin/keras_models: Keras models with python-based convertor to provide embedding in IOS platform

Keras models with python-based convertor to provide embedding in IOS platform.

triagemd/model-converters: Tools for converting Keras models for use with other ML frameworks

Tools for converting Keras models for use with other ML frameworks (coreML, TensorFlow).

Apple & Google: Tensorflow to CoreML converter

Google collaborated with Apple to create a Tensorflow to CoreML converter announcement.

Support for Core ML is provided through a tool that takes a TensorFlow model and converts it to the Core ML Model Format (.mlmodel).

Paddle convertor  

Convert to Paddle model.

PaddlePaddle/X2Paddle: X2Paddle is a toolkit for converting trained model to PaddlePaddle from other deep learning frameworks. 支持主流深度学习框架模型转换至PaddlePaddle『飞桨』

X2Paddle is a toolkit for converting trained model to PaddlePaddle from other deep learning frameworks.

More detailed models: X2Paddle/x2paddle_model_zoo.md at develop · PaddlePaddle/X2Paddle