> For the complete documentation index, see [llms.txt](https://v5docs.keyfax.biz/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://v5docs.keyfax.biz/reference/expression-reference/text-expressions/upper.md).

# Upper

Converts the databox value to capitals.

| Expression | Databox value   | Result          |
| ---------- | --------------- | --------------- |
| `Upper`    | `Mr John Smith` | `MR JOHN SMITH` |

Putting `Upper` in front of a comparison is the usual way to make that comparison case-insensitive — see [Index](/reference/expression-reference/text-expressions/index.md).

See also [Lower](/reference/expression-reference/text-expressions/lower.md) and [WCase](/reference/expression-reference/text-expressions/wcase.md).