The best alternatives to CodeKit are PageLines, Iceberg Editor, and Editmode. If these 3 options don't work for you, we've listed a few more alternatives below.
What do you think of CodeKit?
Intercom— Startups get 90% off Intercom, the complete AI first customer service platform
Iceberg is a beautiful & entirely customizable markdown editor for crafting articles in WordPress. Iceberg leverages the best of WordPress, and the best of the new block editor, while getting out of your way–allowing you to focus on publishing your next post.
Editmode makes it incredibly easy for developers to give clients or co-workers the ability to edit their website content directly on their website where it appears.
WordPress workflow reinvented. No need to waste time with pull, push, and merge. Get Visual Studio Experience inside the WordPress. Scripts Organizer is Advanced Code Editor for WordPress.