Extensibility and Plugin Architecture
The ability to extend the editor's functionality is critical. Top-tier tools like CKEditor 5 and TinyMCE offer robust plugin systems that allow developers to add features like tables, media embeds, emoji pickers, or custom widgets. A good editor should let you keep the core package lightweight while adding necessary modules on demand.
Framework Compatibility
Depending on your tech stack, integration effort varies. If your application is built on React, Vue, or Angular, you should look for editors that offer official "wrapper" components. Tools like Tiptap are built specifically for modern frameworks, while older, battle-tested options like Froala offer broad compatibility across various environments.
Security and Sanitization
Rich Text Editors are a common vector for Cross-Site Scripting (XSS) attacks. A secure editor must provide built-in HTML sanitization. It should strip dangerous tags and attributes (like script tags or inline event handlers) before the content is saved to your database, ensuring that malicious code cannot be executed in the browsers of other users.
Content Output Formats
Consider how the editor saves data. Some editors, such as Editor.js, output clean JSON, which is ideal for headless CMS architectures. Others, like Quill or Summernote, typically output HTML strings. Choose an editor based on whether you need a structured data format for mobile applications or standard HTML for traditional website rendering.