How does padStart/padEnd work?

padStart(totalLength, padChar) prepends the pad character until the string reaches the target length. For example '5'.padStart(3,'0') returns '005'. padEnd works the same way but appends.

What is word wrap vs truncate?

Truncate shortens a string to a maximum length and appends an ellipsis (…) at the cut point. Word wrap inserts a newline character at the last word boundary before the column limit so no word is split.

Which characters does RegEx escape cover?

The tool escapes all regex meta-characters: \ ^ $ . | ? * + ( ) [ ] { }. Useful when you want to match a literal string inside a RegExp constructor.

What does 'extract between' do?

It returns the content found between the first occurrence of a start delimiter and the next occurrence of an end delimiter. Useful for parsing structured text without writing a full parser.

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String Manipulation Toolkit

Pad, trim, repeat, replace, wrap, escape, and extract substrings — all in one place.

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A one-stop developer toolkit for common string operations that are easy to forget the exact syntax for. Each operation lives in its own mini-card with its own input and instant output. Pad strings left or right to a given length; trim whitespace from either or both ends; repeat a string N times; split on a delimiter and rejoin with a different one; replace the first or all occurrences with optional case-insensitive matching; truncate with a custom ellipsis; word-wrap at N characters; escape and unescape for JS string literals, JSON, regular expressions, SQL LIKE patterns, and HTML entities; count how many times a substring occurs; and extract substrings that appear before, after, or between two delimiter strings.

Cómo usar

1 Find the operation card you need — Pad, Trim, Repeat, Split/Join, Replace, Truncate, Word Wrap, Escape/Unescape, Count, or Extract.
2 Type your input string and set any parameters (length, pad character, delimiter, etc.).
3 The output updates instantly in the card's result box.
4 Click the copy icon next to any result to copy it to the clipboard.
5 Use the search box at the top to filter cards by operation name.

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