# String Encodings Constants for encoding standards used when converting raw data to and from string representations. ## Topics ### 7- and 8-bit Encodings [`var NSASCIIStringEncoding: UInt`](/documentation/Foundation/NSASCIIStringEncoding) Strict 7-bit ASCII encoding within 8-bit chars; ASCII values 0…127 only. [`var NSISOLatin1StringEncoding: UInt`](/documentation/Foundation/NSISOLatin1StringEncoding) 8-bit ISO Latin 1 encoding. [`var NSISOLatin2StringEncoding: UInt`](/documentation/Foundation/NSISOLatin2StringEncoding) 8-bit ISO Latin 2 encoding. [`var NSMacOSRomanStringEncoding: UInt`](/documentation/Foundation/NSMacOSRomanStringEncoding) Classic Macintosh Roman encoding. [`var NSNEXTSTEPStringEncoding: UInt`](/documentation/Foundation/NSNEXTSTEPStringEncoding) 8-bit ASCII encoding with NEXTSTEP extensions. [`var NSNonLossyASCIIStringEncoding: UInt`](/documentation/Foundation/NSNonLossyASCIIStringEncoding) 7-bit verbose ASCII to represent all Unicode characters. [`var NSSymbolStringEncoding: UInt`](/documentation/Foundation/NSSymbolStringEncoding) 8-bit Adobe Symbol encoding vector. ### 7- and 8-bit Japanese Encodings [`var NSISO2022JPStringEncoding: UInt`](/documentation/Foundation/NSISO2022JPStringEncoding) ISO 2022 Japanese encoding for email. [`var NSJapaneseEUCStringEncoding: UInt`](/documentation/Foundation/NSJapaneseEUCStringEncoding) 8-bit EUC encoding for Japanese text. [`var NSShiftJISStringEncoding: UInt`](/documentation/Foundation/NSShiftJISStringEncoding) 8-bit Shift-JIS encoding for Japanese text. ### Unicode Encodings [`var NSUTF8StringEncoding: UInt`](/documentation/Foundation/NSUTF8StringEncoding) An 8-bit representation of Unicode characters, suitable for transmission or storage by ASCII-based systems. [`var NSUTF16BigEndianStringEncoding: UInt`](/documentation/Foundation/NSUTF16BigEndianStringEncoding) `NSUTF16StringEncoding` encoding with explicit endianness specified. [`var NSUTF16LittleEndianStringEncoding: UInt`](/documentation/Foundation/NSUTF16LittleEndianStringEncoding) `NSUTF16StringEncoding` encoding with explicit endianness specified. [`var NSUTF16StringEncoding: UInt`](/documentation/Foundation/NSUTF16StringEncoding) [`var NSUnicodeStringEncoding: UInt`](/documentation/Foundation/NSUnicodeStringEncoding) The canonical Unicode encoding for string objects. [`var NSUTF32BigEndianStringEncoding: UInt`](/documentation/Foundation/NSUTF32BigEndianStringEncoding) `NSUTF32StringEncoding` encoding with explicit endianness specified. [`var NSUTF32LittleEndianStringEncoding: UInt`](/documentation/Foundation/NSUTF32LittleEndianStringEncoding) `NSUTF32StringEncoding` encoding with explicit endianness specified. [`var NSUTF32StringEncoding: UInt`](/documentation/Foundation/NSUTF32StringEncoding) 32-bit UTF encoding. ### Windows Code Page Encodings [`var NSWindowsCP1250StringEncoding: UInt`](/documentation/Foundation/NSWindowsCP1250StringEncoding) Microsoft Windows codepage 1250; equivalent to WinLatin2. [`var NSWindowsCP1251StringEncoding: UInt`](/documentation/Foundation/NSWindowsCP1251StringEncoding) Microsoft Windows codepage 1251, encoding Cyrillic characters; equivalent to AdobeStandardCyrillic font encoding. [`var NSWindowsCP1252StringEncoding: UInt`](/documentation/Foundation/NSWindowsCP1252StringEncoding) Microsoft Windows codepage 1252; equivalent to WinLatin1. [`var NSWindowsCP1253StringEncoding: UInt`](/documentation/Foundation/NSWindowsCP1253StringEncoding) Microsoft Windows codepage 1253, encoding Greek characters. [`var NSWindowsCP1254StringEncoding: UInt`](/documentation/Foundation/NSWindowsCP1254StringEncoding) Microsoft Windows codepage 1254, encoding Turkish characters. --- Copyright © 2026 Apple Inc. All rights reserved. | [Terms of Use](https://www.apple.com/legal/internet-services/terms/site.html) | [Privacy Policy](https://www.apple.com/privacy/privacy-policy)