Reverse the characters of a string, with optional multi-line mode.

Repeat a string a given number of times with an optional separator.

Cyclically rotate a string left or right by N positions.

Swap rows and columns of a multi-line string.

Cut a string to a set length from the head or tail with an optional ellipsis.

Strip leading and trailing whitespace, per line or globally.

Pad a string left, right, or both to a target length.

Extract a substring between a start and end index.

Take the first N characters of a string.

Take the last N characters of a string.

Append a reversed copy to create a mirrored string.

Repeat each character a chosen number of times.

Split a string by separator, length, or regex into fragments.

Merge multiple lines into one string with a chosen glue.

Break a string into fixed-size chunks.

Convert a string into a JSON array of characters.

Join a JSON array of characters back into a string.

Split fragments and keep their beginning parts.

Split fragments and keep their ending parts.

Pull every fragment matching a regular expression.

Extract text found between two delimiters.

Break a string into a list of tokens.

Split a string into individual words.

Find and replace text with literal or regex matching.

Replace a set of strings with a matching set of replacements.

Keep or drop lines that contain or match a pattern.

Delete every occurrence of a substring.

Strip a chosen set of characters from a string.

Collapse repeated characters down to one.

Restrict a string to an allowed set of characters.

Insert text at a specific index in a string.

Find and replace text with literal or regex matching.

Replace matches of a regular expression.

Remove duplicate lines from text.

Strip blank or whitespace-only lines.

Strip, collapse, or trim whitespace with multiple modes.

Percent-encode a string for safe use in URLs.

Decode a percent-encoded URL string.

Convert characters into HTML entities.

Convert HTML entities back into characters.

Encode a string into Base64.

Decode a Base64 string back to text.

Add backslashes before special characters.

Remove backslash escaping from a string.

Quote a string by escaping it with backslashes.

Reverse backslash-quoting of a string.

Construct a netstring from a regular string.

Decode a netstring and output its contents.

Convert a string into a JSON-escaped string literal.

Turn a JSON string literal back into raw text.

Convert a string into a sequence of UTF-8 byte values.

Convert a sequence of byte values back into a string.

Convert a string into its binary representation.

Convert a binary string back into text.

Convert a string into hexadecimal.

Convert a hexadecimal string back into text.

Convert a string into octal code values.

Convert a string into decimal code points.

List the Unicode code point of each character.

Build a string from a list of Unicode code points.

Calculate the length of a string in characters.

Count the number of line breaks in a string.

Count characters with or without whitespace.

Count the number of words in a string.

Show how often each character appears.

Check whether a string reads the same backwards.

Build a palindrome from a string.

Sort the characters of a string alphabetically.

Randomly scramble the characters of a string.

List the distinct characters used in a string.

Measure the edit distance between two strings.

Count differing positions between two equal-length strings.

Find the longest common subsequence of two strings.

Find the longest shared substring of two strings.

Visually compare two strings and highlight differences.

Compute a similarity ratio between two strings.

Check if two strings are equal, with case options.

Find the shared prefix and suffix of two strings.

Generate all n-grams of a string.

Generate a random string from a chosen alphabet.

Generate a string that matches a regular expression.

List every possible substring of a string.

Generate all character permutations of a string.

Create a list of likely typos of a string.

Measure Shannon entropy and estimate password strength.

Find lookalike Cyrillic or Greek characters hidden in Latin text.

Expose zero-width, BOM, and RTL-override characters with positions.

Reduce a string to its Unicode skeleton to detect spoofing.

Build a normalized fingerprint for fuzzy deduplication.

Detect whether a string is camel, snake, kebab, or Pascal case.

Group input lines into anagram clusters.

Infer a regular expression that matches example lines.

Fill {{placeholder}} templates from rows of values.

Compare a string's size in UTF-8, UTF-16, and UTF-32.

Split by grapheme clusters for a true visible length, emoji-aware.

Compare locale-aware sorting against raw code point sorting.

Scramble the middle of each word while keeping it readable.

Shift each key one position across the QWERTY layout.

Generate pronounceable pseudo-words for names or passwords.

Mask the middle of a string while keeping the first and last characters.

Auto-detect the ROT shift and decode an unknown rotation.

Preview run-length encoding and show the compression ratio.

Check whether a camel/snake case conversion is reversible.

Merge base, ours, and theirs strings with conflict markers.