Case Converter Tool | Convert to Upper Case, Lower Case, Title Case and More

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Text case converter tool summary

This text case converter helps you fix messy text fast.

Paste your text into the editor, choose the case style you want, and the tool changes the text inside the same box. You can also clean spaces, remove line breaks, find and replace words, check readability, reverse text, and protect special words like iPhone, MyCorp, or ACME.

The tool also has real text formatting. You can select text and make it bold, italic, or underlined.

How to use the tool

First, type or paste your text into the main editor box.

Then click any button you need. The tool edits your text right away, and the live counters show the character count, word count, and line count.

If you make a mistake, you can clear the text and paste it again.

Text counters

The counter area shows 3 live counts:

Character count tells you the total number of letters, numbers, spaces, and symbols.

Word count tells you how many words are in your text.

Line count tells you how many lines your text has.

These numbers update while you type, paste, delete, clean, or convert text.

Copy button

Click Copy to copy the current text.

If your text has bold, italic, or underline formatting, the copy button tries to copy both the plain text and the formatted version. Some apps keep the formatting. Some apps paste plain text only.

Share button

Click Share to send the text using your browser or phone share menu.

On mobile, this can open apps like WhatsApp, Gmail, Messages, or other sharing apps. If your browser doesnโ€™t support sharing, the tool copies the text instead.

Delete button

Click Delete to clear the editor.

This removes all text from the box and resets the counters back to zero.

Settings button

Click the settings icon to open the custom terms box.

Here you can add proper nouns, brand names, product names, or abbreviations that should keep their exact spelling.

Example:

iPhone
MyCorp
ACME
ChatGPT
WordPress

Add one term per line.

When protection is turned on, the tool keeps these words in the correct style after case conversion.

Bold, italic, and underline buttons

Use these buttons to format selected text.

Select the word or sentence first. Then click:

B for bold text.

I for italic text.

U for underlined text.

If you donโ€™t select anything, the formatting applies to the full text inside the editor.

Find and replace

Use the small Find and Replace fields at the top.

Type the word you want to change in the Find box. Type the new word in the Replace box. Then click Replace.

Example:

Find:

apple

Replace:

orange

The tool changes every matching word it finds.

Sentence case

Click Sentence case to make your text look like normal sentences.

The tool lowercases the text first, then capitalizes the first letter after sentence-ending marks like ., !, and ?.

Example:

hello world. this is a test.

Becomes:

Hello world. This is a test.

lower case

Click lower case to turn all letters into lowercase.

Example:

HELLO My FRIEND

Becomes:

hello my friend

UPPER CASE

Click UPPER CASE to turn all letters into capital letters.

Example:

hello my friend

Becomes:

HELLO MY FRIEND

Capitalized Case

Click Capitalized Case to capitalize the first letter of every word.

Example:

hello my friend

Becomes:

Hello My Friend

aLtErNaTiNg cAsE

Click aLtErNaTiNg cAsE to change letters into alternating lowercase and uppercase.

Example:

hello world

Becomes something like:

hElLo WoRlD

Spaces are ignored while the pattern is built, so the letter style keeps moving across words.

Title case

Click Title Case to format text like a title.

Main words are capitalized. Small words like and, or, the, a, an, in, on, of, to, for, and with stay lowercase unless theyโ€™re the first or last word.

Example:

the quick guide to writing with style

Becomes:

The Quick Guide to Writing with Style

InVeRsE CaSe

Click InVeRsE CaSe to flip every letter.

Uppercase letters become lowercase. Lowercase letters become uppercase.

Example:

Hello WORLD

Becomes:

hELLO world

More button

Click the green More button to open extra text tools.

These tools are useful when your text is copied from websites, PDFs, emails, documents, or AI tools and needs cleaning.

Protect special words

Click Protect special words to turn the protection on or off.

When itโ€™s on, the tool checks your custom terms from the settings popup and fixes them after case conversion.

Example:

iphone is made by apple

With iPhone saved in custom terms, it becomes:

iPhone is made by apple

Dark mode toggle

Click Dark mode to switch the tool into a darker design.

Click it again to go back to the light design. The tool remembers your choice in the browser.

Auto-detect input case

Click Auto-detect input case to check what style your text is using.

The result box can show things like:

Detected case: UPPER CASE
Detected case: lower case
Detected case: Sentence case
Detected case: Title Case
Detected case: Mixed or custom case

This is helpful when you paste text and want to know its current format before changing it.

Remove extra spaces

Click Remove extra spaces to clean messy spacing.

It removes extra spaces between words, trims spaces at the start and end of each line, and keeps paragraph breaks neat.

Example:

This   text     has     too many spaces

Becomes:

This text has too many spaces

Remove line breaks

Click Remove line breaks to turn broken lines into one clean paragraph.

This is useful for text copied from PDFs or emails.

Example:

This is line one
this is line two
this is line three

Becomes:

This is line one this is line two this is line three

Clear text formatting

Click Clear Text Formatting to remove styling from the editor.

It strips bold, italic, underline, hidden spacing, and pasted HTML formatting. The text stays, but the styling is removed.

Use this when copied text looks weird after pasting.

Text reverse

Click Text reverse to reverse all characters.

Example:

Hello

Becomes:

olleH

This works for words, sentences, symbols, and numbers.

Readability score

Click Readability score to check how easy your text is to read.

The tool gives a score from 0 to 100. A higher score means the text is easier to read.

Example result:

Readability score: 82/100, Easy. Words: 120, Sentences: 9.

Use this before publishing blog posts, product descriptions, tool pages, or emails.

Add missing dot after paragraph ends

Click Add missing dot after paragraph ends to add a period at the end of lines or paragraphs that donโ€™t already end with punctuation.

Example:

This is my first paragraph
This is my second paragraph

Becomes:

This is my first paragraph.
This is my second paragraph.

If a line already ends with ., !, ?, or โ€ฆ, the tool leaves it alone.