How does it work?

This tool converts all characters in your text to uppercase. It transforms lowercase letters (a-z) to their uppercase equivalents (A-Z), while leaving other characters unchanged.

For example, "hello world" becomes "HELLO WORLD", and "Mixed Case Example" becomes "MIXED CASE EXAMPLE".

Examples of uppercase conversion

Original text

hello world
Hello World
Mixed Case Example
camelCaseExample
PascalCaseExample
screaming_snake_case
snake_case_example

Converted to UPPERCASE

HELLO WORLD
HELLO WORLD
MIXED CASE EXAMPLE
CAMELCASEEXAMPLE
PASCALCASEEXAMPLE
SCREAMING_SNAKE_CASE
SNAKE_CASE_EXAMPLE

Converting text to uppercase is useful for:

Creating headings or titles that stand out
Emphasizing important information
Creating constants or enum values in programming (e.g., SCREAMING_SNAKE_CASE)
Standardizing text for case-insensitive comparisons
Creating a bold or authoritative tone in writing

Parameters

Text to convert: The input text that you want to convert to uppercase

Related Tools

To Lowercase - Convert text to all lowercase letters
Capitalize - Capitalize the first letter of each word
Invert Case - Invert the case of each letter in the text
To Camel Case - Convert text to camelCase format
To Pascal Case - Convert text to PascalCase format

All Tools

See all available tools

Text tools

Decode base64 text Base64 encode text Trim whitespaces Decode URL text URL encode text Change text to uppercase Change text to lowercase Count words, lines, paragraphs

Encode/Decode

Encode text to MD5 Hex Encode text to SHA-1 Hex Encode text to SHA-256 Hex Encode text to SHA-512 Hex Encode text to SHA3-256 Hex Encode text to SHA3-512 Hex Encode text as URL Decode URL text Encode text to Base64 Decode Base64 text Encode text to Hex Decode Hex text ISO Timestamp to Epoch Milliseconds Epoch Milliseconds to ISO Timestamp

Increment/Decrement

Increment all numbers Decrement all numbers Duplicate and increment numbers Duplicate and decrement numbers Create sequence Increment duplicate numbers

Sort

Reverse order of lines Shuffle lines Sort case-sensitive A-z Sort case-sensitive z-A Sort case-insensitive A-Z Sort case-insensitive Z-A Sort line length ascending Sort line length descending Sort hexadecimally Sort lines by subselection Sort tokens Shuffle Characters JSON sort Hierarchical sort

Align

Align carets/selections Format text to columns/table Align text to left Align text to center Align text to right

Filter/Remove/Trim

Grep Inverted Grep Group by Grep Trim Trim Leading Trim Trailing Replace whitespaces with space Remove all spaces Remove duplicates Keep only duplicate lines Group and Count Remove empty lines Remove consecutive empty lines Remove all newlines

Convert/Minify

Convert Between Char and Int Minify JSON Minify JavaScript Convert Between JSON and YAML

Other

Reverse Letters Swap Words Swap Characters/Selections/Lines/Tokens Wrap or shift quotes Swap between quotes Straighten/Educate quotes Switch file path separators Select All Occurrences For All Carets Extend Selection in Different Mode Multi Replace Duplicate and Multi Replace Paste - camelCased Paste - and Keep Selections Create Border

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To UPPER CASE

Text to convert

Converted text