# Text Case Converter

Apply Unicode case conversion where the installed PHP mbstring supports it.

[Open this tool](https://whatson.pk/developer-text-case-calculator/)

Category: Developer & Data

Letter case conversion changes text presentation without correcting the wording.

Choose a supported case operation and review names, abbreviations and identifiers afterwards.

## Inputs and controls

* Text input
* Letter case: UPPERCASE; lowercase; Title Case

## How to use

* Paste or enter text input.

* Choose letter case.

* Select Process input. Read the returned values alongside the assumptions below before copying, exporting or acting on the result.


## Why use this tool

Unicode handling preserves text while applying the available letter case rules.


## Before relying on the result

Requires mbstring. Case operations leave Urdu letters unchanged and do not transliterate names.


## Tool limitations

Requires mbstring. Case operations leave Urdu letters unchanged and do not transliterate names.

## Questions

### Will it transliterate Urdu names?

No. Urdu letters remain unchanged by case operations, and no transliteration is performed.

### What should I check before using Text Case Converter?

Check Text input and Letter case. Use the exact units shown beside the controls and replace any example values with your own inputs.

Source page last modified (UTC): 2026-10-04T16:58:29+00:00

This profile describes the tool. It does not execute it or supply a professional certification.