- http://chardb.iis.sinica.edu.tw/
- http://www.kxue.com/
- http://ctext.org/
- http://www.zdic.net/
- http://www.pin1yin1.com/
- http://www.mandarintools.com/worddict.html
- http://xh.5156edu.com/
- http://www.wordsense.eu/
- http://dictionary.pinpinchinese.com/definitions/
Tra cứu cổ tự
- http://www.chineseetymology.org/
- http://www.vividict.com/
- http://www.edictionary.org/chinese-1.html
- http://huazi.qcrx.cn/
Tự điển dị thể
- http://dict.variants.moe.edu.tw/