The Wolfram Language incorporates the latest highly efficient algorithms to allow operations on strings with millions of elements, all making use of the Wolfram Language's unique symbolic string patterns.

StringJoin — join strings together

StringSplit — split strings at whitespace, or any specified pattern

StringLength — length of a string (in Unicode characters)

StringPart   ▪ StringTake   ▪ StringDrop   ▪ StringTakeDrop   ▪ StringInsert

StringTrim — trim whitespace etc. from strings

StringRiffle — assemble a string from a list, inserting delimiters

StringExtract — extract numbered parts defined by delimiters

StringReverse — reverse the characters in a string

StringRotateLeft   ▪ StringRotateRight

StringPadLeft   ▪ StringPadRight

StringPartition — partition a string into blocks

InsertLinebreaks — break a string onto multiple lines

StringPosition — find positions of substrings or string patterns

StringCases — give all cases of string patterns in a string

StringCount — count occurrences of a string pattern

StringContainsQ   ▪ StringFreeQ   ▪ StringMatchQ

StringStartsQ   ▪ StringEndsQ   ▪ PalindromeQ

StringReplace — make replacements for substrings or string patterns

StringReplacePart — replace substrings at specified positions

StringReplaceList — do all possible replacements on a string

Character-Oriented Operations »

ToUpperCase   ▪ ToLowerCase   ▪ Capitalize   ▪ CharacterCounts   ▪ ...

Characters — break a string into a list of characters

Sort   ▪ AlphabeticSort   ▪ AlphabeticOrder

Hash — compute hash codes for a string

ImportString , ExportString — translate between many string formats

StringToStream — set up a string to be read sequentially

Read   ▪ Find   ▪ Skip   ▪ SetStreamPosition   ▪ ...

String Data Operations »

SequenceAlignment   ▪ Nearest   ▪ FindClusters   ▪ DictionaryLookup   ▪ ...

Related Tech Notes

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• String Patterns
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• Working with String Patterns

Related Guides

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• String Patterns
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• String Manipulation
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• Character Operations
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• List Manipulation
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• Converting between Expressions & Strings