Tesseract
The classic OCR engine
Document AI & OCROCR engineApache-2.0Runs locallyC++Beginner
🐳 Docker pulls
📦 PyPI downloads / month
📦 npm downloads / month
🚀 Latest release ·
What is Tesseract?
Tesseract is the long-standing open-source OCR engine, supporting over 100 languages and still the baseline for text extraction from images.
Why people choose Tesseract
- 100+ languages supported
- Battle-tested over two decades
- Runs anywhere, no GPU needed
Tesseract at a glance
| Category | Document AI & OCR |
| Type | OCR engine |
| License | Apache-2.0 |
| Runs locally | Yes |
| Built with | C++ |
| Skill level | Beginner |
| Best for | simple, reliable OCR in any language |
Latest releases
Open-source alternatives to Tesseract
Other open-source document ai & ocr tools worth comparing:
MarkerConvert PDFs to clean Markdown fast
DoclingIBM-grade document understandingSuryaModern OCR with layout detection
PaddleOCRIndustrial OCR with tiny models
UnstructuredTurn any file into LLM-ready data
FirecrawlTurn websites into LLM-ready Markdown
Crawl4AIOpen-source LLM-friendly crawler
olmOCRTurn PDFs into clean training-grade text
MinerUPDF to Markdown with formulas and tablesTesseract head-to-head
Tesseract vs MarkerTesseract vs DoclingTesseract vs SuryaTesseract vs PaddleOCRTesseract vs UnstructuredTesseract vs FirecrawlTesseract vs Crawl4AITesseract vs olmOCRTesseract vs MinerU
FAQ
Is Tesseract free?
Tesseract is free and open-source (Apache-2.0 license), so you can use, self-host and modify it at no cost.
Can I run Tesseract locally?
Yes. Tesseract is designed to run on your own machine or server, keeping your data private.
What is the best alternative to Tesseract?
Popular open-source alternatives include Marker, Docling, Surya. See the comparisons above to choose.
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