Keyword Tokenizeredit

The keyword tokenizer is a noop tokenizer that accepts whatever text it is given and outputs the exact same text as a single term. It can be combined with token filters to normalise output, e.g. lower-casing email addresses.

Example outputedit

POST _analyze
  "tokenizer": "keyword",
  "text": "New York"

The above sentence would produce the following term:

[ New York ]


The keyword tokenizer accepts the following parameters:


The number of characters read into the term buffer in a single pass. Defaults to 256. The term buffer will grow by this size until all the text has been consumed. It is advisable not to change this setting.