Tesseract is an open-source science & education tool — Optical character recognition engine that extracts text from images. It is written in C++.

Is Tesseract free and open source?

Yes. Tesseract is free and open source, released under the Apache-2.0 license. You can view and contribute to the source at https://github.com/tesseract-ocr/tesseract.

What language is Tesseract written in?

Tesseract is primarily written in C++.

What are open-source alternatives to Tesseract?

Other open-source science & education tools on OSSDrop include TensorFlow, PyTorch, OpenCV, Ultralytics YOLO.

Tesseract

Curated

Optical character recognition engine that extracts text from images.

Visit tesseract-ocr.github.io Source

Science & Education·Apache-2.0·C++·76k stars·5.5.3·added 2026-08-12

Curated listing — added by OSSDrop, not the maker.

Awards

#3 Tool of the Day· Aug 12, 2026

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Frequently asked

What is Tesseract?
Tesseract is an open-source science & education tool — Optical character recognition engine that extracts text from images. It is written in C++.
Is Tesseract free and open source?
Yes. Tesseract is free and open source, released under the Apache-2.0 license. You can view and contribute to the source at https://github.com/tesseract-ocr/tesseract.
What language is Tesseract written in?
Tesseract is primarily written in C++.
What are open-source alternatives to Tesseract?
Other open-source science & education tools on OSSDrop include TensorFlow, PyTorch, OpenCV, Ultralytics YOLO.

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