# How to split field value into an array?
**URL:** https://discuss.elastic.co/t/how-to-split-field-value-into-an-array/245197
**Category:** Logstash
**Created:** [August 17, 2020, 8:33am UTC](https://discuss.elastic.co/t/how-to-split-field-value-into-an-array/245197 "2020-08-17T08:33:59Z")
**Posts on this page:** 3
**Page:** 1
### Author:  [@Robo](https://discuss.elastic.co/u/Robo)
#### Post date: [August 17, 2020, 8:34am UTC](https://discuss.elastic.co/t/how-to-split-field-value-into-an-array/245197/1 "2020-08-17T08:34:00Z")
Hello,
I would like to split a field value into an array of values. Field type is keyword and I would like to separate these values, so we can filter each value separately (e.g. "app1").
example:
applname: app1, app2, app3
expected result:
applname: ["app1","app2","app3"]
I tried to use split filter:
```auto
mutate {
split => { "applname" => ", " }
}
```
But the result was:
```auto
"applname": ["app1,app2,app3"]
```
Is there a better way how to achieve the expected result?
Thanks!
---
### Author:  [@Robo](https://discuss.elastic.co/u/Robo)
#### Post date: [August 17, 2020, 9:57am UTC](https://discuss.elastic.co/t/how-to-split-field-value-into-an-array/245197/2 "2020-08-17T09:57:15Z")
Solved.
The original field was:
applname: app1,app2,app3
So using split filter the value of the field was saved as an array.
```auto
mutate {
split => { "applname" => "," }
}
```
```auto
applname: ["app1","app2","app3"]`
```
---
### Author:  [@system](https://discuss.elastic.co/u/system)
#### Post date: [September 14, 2020, 9:57am UTC](https://discuss.elastic.co/t/how-to-split-field-value-into-an-array/245197/3 "2020-09-14T09:57:15Z")
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