String Tools

Need to double every letter in your text for fun, formatting, or encoding? The Duplicate Letters in Text Tool automatically duplicates every alphabetic character (A–Z, a–z) while leaving everything else…

Need to convert digits like 1 or 5 into full words like “one” or “five”? The Replace Digits with Words Tool does exactly that. You can define custom digit-to-word mappings…

Need to convert number words like “one” or “three” into actual digits? The Replace Words with Digits Tool makes it easy to map any word to a digit or number…

Need to swap specific letters in your text with symbols, digits, or alternate characters? The Replace Letters in Text Tool lets you define your own custom mappings – like a…

Want to check if your regular expression matches a specific piece of text? The Test Text with a RegExp Tool lets you paste any text, enter a pattern, and instantly…

Want to quickly spot specific patterns in your content? The Highlight RegExp Matches in Text Tool helps you locate and highlight regular expression matches live as you type. It’s great…

Need to find and extract specific patterns from a block of text? The Extract RegExp Matches from Text Tool lets you use custom regular expressions to pull out all matching…

Need to shift letters backward through the alphabet? The Decrement Letters in Text Tool takes every letter in your input and moves it back by a number of steps you…

Want to shift every letter forward in the alphabet? The Increment Letters in Text Tool lets you increase each letter by a custom number of steps turning abc into bcd,…

Need to swap every space in your text for something else? The Replace Spaces in Text Tool lets you instantly convert spaces into any character or string underscores, dashes, pipes,…