Code Quality Rank: L1
Programming language: Objective-C
License: MIT License
Tags: Text    
Latest version: v0.5.2

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The Editor

ZSSRichTextEditor is a beautiful Rich Text WYSIWYG Editor for iOS. It includes all of the standard editor tools one would expect from a WYSIWYG editor as well as an amazing source view with syntax highlighting.


The editor is used how any other text input area in iOS is used. A selection of text or content is made, then tapping on the toolbar item below will apply that style. A Source View is also included, you can make changes and this will be reflected in the editor preview.



We wanted to have a really beautiful color picker to make changing colors really simple. So, we used the open-source HRColorPicker which was exactly what we were looking for. Choosing colors for text or background is simple and seamless.


How It Works

Just subclass ZSSRichTextEditor and use the following:

// HTML Content to set in the editor
NSString *html = @"<!-- This is an HTML comment -->"
"<p>This is a test of the <strong>ZSSRichTextEditor</strong> by <a title=\"Zed Said\" href=\"http://www.zedsaid.com\">Zed Said Studio</a></p>";

// Set the base URL if you would like to use relative links, such as to images.
self.baseURL = [NSURL URLWithString:@"http://www.zedsaid.com"];

// If you want to pretty print HTML within the source view.
self.formatHTML = YES;

// set the initial HTML for the editor
[self setHTML:html];

If you want to retrieve the HTML from the editor:

// Returns an NSString
[self getHTML];

Insert HTML at the current caret position:

NSString *html = @"<strong>I love cats!</strong>";
[self insertHTML:html];

Change the tint color of the toolbar buttons:

// Set the toolbar item color
self.toolbarItemTintColor = [UIColor greenColor];

// Set the toolbar selected color
self.toolbarItemSelectedTintColor = [UIColor redColor];

Show only specified buttons in the toolbar:

self.enabledToolbarItems = @[ZSSRichTextEditorToolbarBold, ZSSRichTextEditorToolbarH1, ZSSRichTextEditorToolbarParagraph];

Always show the toolbar even when the keyboard is hidden:

self.alwaysShowToolbar = YES;

Set A Placeholder

[self setPlaceholder:@"This is a placeholder that will show when there is no content(html)"];

Insert Link and Insert Image

If you want to manually insert a link or image where the cursor is, you can use the following methods:

Insert Image

- (void)insertImage:(NSString *)url alt:(NSString *)alt;

Insert Link

- (void)insertLink:(NSString *)url title:(NSString *)title;

Custom Pickers

You can implement your own pickers for images and links if you have an alternate method that you are wanting to use. E.g., uploading an image from your camera roll then inserting the URL.

When the alternate picker icon (crosshair) is tapped it will call the corresponding method, which you need to override in your ZSSRichTextEditor subclass (see example project):

- (void)showInsertURLAlternatePicker {

    [self dismissAlertView];

    // Show your custom picker


- (void)showInsertImageAlternatePicker {

    [self dismissAlertView];

    // Show your custom picker


Custom Toolbar Buttons

UIButton *myButton = [[UIButton alloc] initWithFrame:CGRectMake(0.0f, 0.0f, buttonWidth, 28.0f)];
[myButton setTitle:@"My Button" forState:UIControlStateNormal];
[myButton addTarget:self

[self addCustomToolbarItemWithButton:myButton];

Custom CSS

NSString *customCSS = @"a {text-decoration:none;} a:hover {color:#FF0000;}";
[self setCSS:customCSS];

Receive Editor Did Change Events

Add the following to your viewDidLoad method:

self.receiveEditorDidChangeEvents = YES;

Then you will receive events in the following method:

- (void)editorDidChangeWithText:(NSString *)text andHTML:(NSString *)html {

    NSLog(@"Text Has Changed: %@", text);

    NSLog(@"HTML Has Changed: %@", html);


Receive Hashtag & Mention Events


- (void)hashtagRecognizedWithWord:(NSString *)word {

    NSLog(@"Hashtag has been recognized: %@", word);



- (void)mentionRecognizedWithWord:(NSString *)word {

    NSLog(@"Mention has been recognized: %@", word);


Supported Functions

ZSSRichTextEditor has the following functions:

  • Bold
  • Italic
  • Subscript
  • Superscript
  • Strikethrough
  • Underline
  • Remove Formatting
  • Font
  • Justify Left
  • Justify Center
  • Justify Right
  • Justify Full
  • Paragraph
  • Heading 1
  • Heading 2
  • Heading 3
  • Heading 4
  • Heading 5
  • Heading 6
  • Undo
  • Redo
  • Unordered List
  • Ordered List
  • Indent
  • Outdent
  • Insert Image
  • Insert Link
  • Quick Link
  • Unlink
  • Horizontal Rule
  • View Source
  • Text Color
  • Background Color


You can use CocoaPods or manually using the following instructions:

ZSSRichTextEditor requires iOS7 as well as CoreGraphics.framework and CoreText.framework.

  • Copy the Source folder to your project.
  • Subclass ZSSRichTextEditor and implement the methods as mentioned above.

When using ZSSRichTextEditor in your own project, XCode will automatically add ZSSRichTextEditor.js to compile sources under build phases, this will cause ZSSRichTextEditor to not work correctly as the javascript file won't be included in your app. Instead, remove it from compile sources and add it to copy bundle resources.


ZSSRichTextEditor uses portions of code from the following sources:

Component Description License
CYRTextView CYRTextView is a UITextView subclass that implements a variety of features that are relevant to a syntax or code text view. MIT
HRColorPicker Simple color picker for iPhone BSD
jQuery jQuery is a fast, small, and feature-rich JavaScript library. MIT
JS Beautifier Makes ugly Javascript pretty MIT


Visit us online at http://www.zedsaid.com or @zedsaid.

*Note that all licence references and agreements mentioned in the ZSSRichTextEditor README section above are relevant to that project's source code only.