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DALI
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DALI

A GPU-accelerated library containing highly optimized building blocks and an execution engine for data processing to accelerate deep learning training and inference applications.

by NVIDIA · GitHub
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audio-processingdata-augmentationdata-processingApache-2.0C++
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In plain words

Speed up the preparation of data for deep learning by using optimized tools for processing images, videos, and audio.

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5.73k5.72k
2026-07-042026-08-31
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📄 About

A GPU-accelerated library containing highly optimized building blocks and an execution engine for data processing to accelerate deep learning training and inference applications.

DALI has 5.7k stars on GitHub. It has been forked 669 times. DALI is written mainly in C++. It has been in active development since 2018. DALI is available under the Apache-2.0 license. Its main topics are audio-processing, data-augmentation, data-processing, deep-learning.

Frequently asked questions

What is DALI?

A GPU-accelerated library containing highly optimized building blocks and an execution engine for data processing to accelerate deep learning training and inference applications.

Is DALI open source?

DALI is an open-source project. It is released under the Apache-2.0 license.

Is DALI free?

Yes. DALI is free and open source — you can use, modify and self-host it.

What license does DALI use?

DALI is available under the Apache-2.0 license.

What language is DALI written in?

DALI is written mainly in C++.

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