CASIA Online and Offline Chinese Handwriting Databases

Caution: To avoid data misuse, we now license full databases to experienced researchers only. When your submit an application, please show evidences that you have achieved meaningful results in handwriting recognition. Those who are starting can use the free data at Download

Condition of Use and Application Form

The online and offline Chinese handwriting databases, built by the CASIA, are released for academic research free of cost under an agreement. For usage, please download the application form (in English or in Chinese), read the conditions of use carefully, fill in the application form and send back by Fax or email (scanned PDF) to Cheng-Lin Liu (, Fax: +86-10-82544797)

Commercial use of the databases is subject to charge. For possible license of commercial use, please contact Cheng-Lin Liu. The database of commercial use is enlarged to contain the data of 1,220 writers.

Conditions of Academic Use

  1. All samples in the databases under this agreement can only be used by the group of the named applicant and can only be used for research purpose. No samples can be used for any commercial purpose.
  2. All applicants must submit a signed agreement (application form below) to the Institute of Automation of CAS (CASIA).
  3. The Institute of Automation of CAS retains the copyright of all sample data in the database
  4. Publications of research results on the database should be appropriately acknowledged. The recommended reference is below:
    C.-L. Liu, F. Yin, D.-H. Wang, Q.-F. Wang, CASIA online and offline Chinese handwriting databases, Proc. 11th International Conference on Document Analysis and Recognition (ICDAR), Beijing, China, 2011, pp.37-41.

Application Forms

  1. Offline database CASIA-HWDBApplication Form in English, or in Chinese
  2. Online database CASIA-OLHWDB Application Form in English, or in Chinese