How to Change Text Case: UPPERCASE, lowercase and Title Case
To change text case, paste your text into the Case Converter on pdfseotools.com and choose Sentence case, lower case, UPPER CASE, Capitalize Each Word or tOGGLE cASE. The text converts instantly with line breaks kept. Check acronyms like PDF and brand names afterwards, as they may be lower-cased.

Key facts
- 5 options: Sentence case, lower case, UPPER CASE, Capitalize Each Word, tOGGLE cASE
- Line breaks and spacing are kept
- Acronyms (PDF, SEO) may need fixing by hand after Sentence or Title style
- Ideal after typing with Caps Lock on by mistake
The five styles
✓| Option | Example | Use it for |
|---|---|---|
| Sentence case | How to use seo tools. It is easy. | Normal paragraphs, many headings |
| lower case | how to use seo tools | URLs, tags, hashtags |
| UPPER CASE | HOW TO USE SEO TOOLS | Short labels, buttons, warnings |
| Capitalize Each Word | How To Use Seo Tools | Title-style headings, names |
| tOGGLE cASE | hOW TO USE seo TOOLS | Fixing text typed with Caps Lock on |
How to change case – step by step

Step 1: Paste your text
✍️ Open the Case Converter and paste or type your text.
Step 2: Choose a style
Pick one of the five options.
Step 3: Convert
The converted text appears instantly.
Step 4: Copy and polish
Copy the result and fix acronyms and brand names such as PDF, SEO, YouTube or iPhone.
Fix "Caps Lock" text in one click
✕
✓Typed a whole paragraph as "tHIS IS MY TEXT"? Use tOGGLE cASE to flip every letter, or Sentence case to rebuild it properly from scratch.
Style tips
- Pick one heading style for your whole site and stick to it.
- Avoid long sentences in ALL CAPS – they are harder to read and feel like shouting.
- Use lower case for URL slugs and hashtags.
- After converting, run the text through the Word Counter if you have a character limit.
Open the Case Converter on pdfseotools.com – free, no sign-up and it works on any device.
Frequently Asked Questions
Which case options are available?
Sentence case, lower case, UPPER CASE, Capitalize Each Word (title-style) and tOGGLE cASE.
What is the difference between Sentence case and Title Case?
Sentence case capitalises only the first word of each sentence and the word "I". Capitalize Each Word puts a capital on every word.
Why did "PDF" become "Pdf"?
Capitalize Each Word and Sentence case first lower-case the text, so acronyms lose their capitals. Fix brand names and acronyms such as PDF, SEO or iPhone by hand afterwards.
Will line breaks be kept?
Yes. The text keeps its line breaks and spacing; only the letters change case.
Which case should I use for headings?
Use one style consistently. Many websites use Sentence case for readability; others use title-style capitals. Avoid ALL CAPS for long headings.
Does it work for Hindi?
Scripts such as Devanagari have no upper and lower case, so they are left unchanged.
Summary
Paste, choose a style, copy – then fix acronyms by hand. Try the Case Converter and see more free text tools.
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