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Tesseract OCR

Tesseract Open Source OCR Engine (main repository)

View on GitHub Official site
Rag Document Apache-2.0 Easy setup 75,496 stars

Overview

Description

Tesseract is a free open-source OCR engine that extracts text from scanned documents, PDFs, and images so you never need to retype a single word. It supports over 100 languages out of the box and exports to plain text, searchable PDF, HTML, and more. The bottom line: automate document digitization and eliminate manual data entry.

Technical scorecard

License

Apache-2.0

Commercial use

Yes

OpenAI-compatible API

No

REST API

No

Fine-tuning support

Yes

Quantization support

No

Docker available

No

GUI / no-code available

No

Telemetry

Unknown

Offline after setup

Yes

Data & Privacy

Does it send data online?

After setup, this listing is marked as usable offline. Confirm network behavior against the upstream project before regulated deployment.

Does it store history?

Not verified in this directory yet. Review the upstream docs for persistence, logs, and workspace storage.

License checks?

Commercial use is marked as allowed or likely allowed by the listed license.

Telemetry?

Unknown

Last verified: Jul 22, 2026. Maintainer verification should be treated as directory guidance, not legal advice.

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Setup & Installation

Easy

A developer can usually get this running with standard docs.

# Start with the official project repository
# https://github.com/tesseract-ocr/tesseract

Hardware Requirements

Hardware tagsNot specified
LanguagesC++

Works Well With