Embeddable OCR mature

Tesseract OCR

Open-source OCR engine supporting 100+ languages

63.0K stars 100 contributors Since 2005
Website → GitHub

Open-source OCR engine supporting 100+ languages

License
Apache-2.0
Min RAM
256 MB
Min CPUs
1 core
Scaling
single_node
Complexity
intermediate
Performance
medium
Self-hostable
✓
K8s native
✕
Offline
✓
Pricing
fully free
Docs quality
good
Vendor lock-in
none

Use cases

  • ✓ Extract text from scanned documents
  • ✓ Digitize paper records
  • ✓ OCR pipeline for document processing
  • ✓ Receipt and invoice scanning

Anti-patterns / when NOT to use

  • ✕ Pre-processing needed for good results
  • ✕ Not great for handwriting
  • ✕ Layout analysis limited
  • ✕ No GPU acceleration

Replaces / alternatives to

  • Google Vision API
  • AWS Textract
  • Azure Computer Vision

Technical specs

Language
C++
API type
SDK
Protocols
HTTP
Deployment
aptbinarypip
SDKs
c++pythonjavascriptjavagorust

Community

GitHub stars 63.0K
Contributors 100
Commit frequency weekly
Plugin ecosystem none
Backing Google / HP
Funding community

Release

Latest version —
Last release —
Since 2005

Best fit

Team size
solosmallmedium
Industries
general

Tags

  • ocr
  • text-extraction
  • lstm
  • 100-languages
  • unicode
  • hocr
  • pdf-output
  • trainable