License Plate Recognition SDK

Automatic License Plate Recognition

What is SimpleLPR?

SimpleLPR is a software component aimed at vehicle license plate recognition (see LPR, ANPR). It has a very simple application programming interface which allows applications to supply a path to an image or a pointer to a buffer in memory and to get in return the detected license plate number and its location in the image.

It can be used from C++ or any .NET enabled programming language such as Visual Basic .NET, C#, VB Script or JScript. Integration is simple and straightforward as demonstrated in the examples supplied with the SDK.

Typical successful detection rates range from 85% to 95% provided that license plates are in good condition, unoccluded and the text height is larger than 20 pixels.

Supported countries

  • Algeria
  • Argentina
  • Australia
  • Azerbaijan
  • Belgium
  • Bolivia
  • Bosnia and Herzegovina
  • Botswana
  • Brazil
  • Bulgaria
  • Cambodia
  • Cameroon
  • Canada
  • Cape Verde
  • Chile
  • Colombia
  • Costa Rica
  • Croatia
  • Cuba
  • Cyprus
  • Czech Republic
  • Denmark
  • East Timor
  • Ecuador
  • El Salvador
  • Estonia
  • France
  • Georgia
  • Germany
  • Greece
  • Guatemala
  • Honduras
  • Hungary
  • Iceland
  • India
  • Ireland
  • Israel
  • Italy
  • Jordan
  • Kenya
  • Latvia
  • Lithuania
  • Luxembourg
  • Malaysia
  • Myanmar
  • Namibia
  • Netherlands
  • Norway
  • Peru
  • Poland
  • Portugal
  • Puerto Rico
  • Romania
  • Singapore
  • Slovakia
  • Slovenia
  • South Africa
  • Spain
  • Sweden
  • Switzerland
  • Turkey
  • United Kingdom
  • Ukraine
  • Uruguay
  • Venezuela
  • Vietnam


SimpleLPR 2.4 screenshot

Supported platforms


Download the latest version

Here you can download the SimpleLPR user's guidepdf

Here you can download an unlicensed copy of SimpleLPR for evaluation purposes. msi installer

Here you can purchase a licensed copy of SimpleLPRShare It

[See the change log]


The unlicensed version will be fully functional during 60 days.

The licensed version costs 400€. Licensing entitles owners to distribute a royalty free unlimited number of copies of SimpleLPR along with their applications.


You can submit your questions/issues/bug reports/feedback to