# Limit size of a data field in kibana

**URL:** https://discuss.elastic.co/t/limit-size-of-a-data-field-in-kibana/265804
**Category:** Kibana
**Tags:** painless
**Created:** [March 1, 2021, 1:30pm UTC](https://discuss.elastic.co/t/limit-size-of-a-data-field-in-kibana/265804 "2021-03-01T13:30:29Z")
**Posts on this page:** 3
**Page:** 1

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### Author: ![Sandeep\_Raju](https://avatars.discourse-cdn.com/v4/letter/s/8797f3/32.png) [@Sandeep\_Raju](https://discuss.elastic.co/u/Sandeep_Raju)
#### Post date: [March 1, 2021, 1:30pm UTC](https://discuss.elastic.co/t/limit-size-of-a-data-field-in-kibana/265804/1 "2021-03-01T13:30:29Z")

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Hi all,

I'm trying to restrict value of data entry(value) of my field to 30 characters in my kibana visualizations

I think there is some advanced json method by painless to do this,but i'm unable to figure out command.

Any idea on how to go about this?

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### Author: ![aaron-nimocks](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/aaron-nimocks/32/73965_2.png) [@aaron-nimocks](https://discuss.elastic.co/u/aaron-nimocks)
#### Post date: [March 1, 2021, 1:33pm UTC](https://discuss.elastic.co/t/limit-size-of-a-data-field-in-kibana/265804/2 "2021-03-01T13:33:04Z")

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You can create a [scripted field](https://www.elastic.co/guide/en/kibana/current/scripted-fields.html) with type `String` with `Format` of `Truncated String` to do this.

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### Author: ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)
#### Post date: [March 29, 2021, 1:33pm UTC](https://discuss.elastic.co/t/limit-size-of-a-data-field-in-kibana/265804/3 "2021-03-29T13:33:58Z")

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