Regex tester
Pattern
Input
Hello World
Hello

HEllo
heLLo
HELLO
Hello WOrld
hello wORld
hello WORLD
Options
Replacement
Click the context tab to see replacements.
3 matches found in about 5 milliseconds.
IndexPositionMatched String
00Hello World
113Hello
220whitespace
Hello WorldHello
​HEllo
​heLLo
​HELLO
​Hello WOrld
​hello wORld
​hello WORLD
  1. empty string
  2. whitespace
  3. whitespace

  4. HEllo
    heLLo
    HELLO
    Hello WOrld
    hello wORld
    hello WORLD