NSURL is a class that represents a URL—the human-readable host names and paths that various networking clients use to locate both remote resources over a network, or resources on the local filesystem. Core Foundation has a type, CFURL, that is toll-free bridged to NSURL, and as such the two types can be used interchangeably.

@interface NSURL : NSObject
// Accessor Methods
- (BOOL)setResourceData:(NSData *)data;
- (BOOL)setProperty:(id)property forKey:(NSString *)propertyKey;
// Class Methods
+ (NSURL *)URLFromPasteboard:(NSPasteboard *)pasteBoard;
+ (id)URLWithString:(NSString *)URLString;
+ (id)URLWithString:(NSString *)URLString relativeToURL:(NSURL *)baseURL;
+ (id)fileURLWithPath:(NSString *)path;
// Instance Methods
- (NSURLHandle *)URLHandleUsingCache:(BOOL)shouldUseCache;
- (id) initWithString:(NSString *)URLString;
- (id) initWithString:(NSString *)URLString relativeToURL:(NSURL *)baseURL;
- (NSString *)absoluteString;
- (NSURL *)absoluteURL;
- (NSURL *)baseURL;
- (NSString *)fragment;
- (NSString *)host;
- (BOOL)isFileURL;
- (void)loadResourceDataNotifyingClient:(id)client usingCache:(BOOL)shouldUseCache;
- (NSString *)parameterString;
- (NSString *)password;
- (id) initFileURLWithPath:(NSString *)path;
- (NSString *)path;
- (NSNumber *)port;
- (id)propertyForKey:(NSString *)propertyKey;
- (NSString *)query;
- (NSString *)relativePath;
- (NSString *)relativeString;
- (NSData *)resourceDataUsingCache:(BOOL)shouldUseCache;
- (NSString *)resourceSpecifier;
- (NSString *)scheme;
- (id) initWithScheme:(NSString *)scheme host:(NSString *)host path:(NSString *)path;
- (NSURL *)standardizedURL;
- (NSString *)user;
- (void)writeToPasteboard:(NSPasteboard *)pasteBoard;