Code Editor for HTML CSS JS vs HTML Designer Pro

Prisma is the best code editor for web developers and people learning web development. Get syntax highlighting, custom URLs, and unlimited projects. Share your projects with your friends in one click.

HTML Designer is a complete web workshop for iPhone and iPad: write the code, watch the page render beside it, then publish straight to your own server. WRITE THE CODE • A real code editor, with syntax colouring for HTML, CSS, JavaScript and PHP • Line numbers, re-indent, find and replace, and find across the whole project • Snippets with trigger keys: type a short key, press Tab, get the block • An HTML validator that lists what is wrong and takes you to the line SEE IT AS YOU TYPE • The preview serves your site from a real local web server, so relative links, images, stylesheets and scripts behave exactly as they will online • PHP pages render through that server too, and Markdown files get a properly rendered preview • Code, Split or Preview — panes side by side or stacked, whichever suits the screen • Inspect: tap an element in the preview and land on its tag in the source • Edit Text: retype wording on the rendered page and the source updates with it PUBLISH TO YOUR SERVER • FTP, FTPS and SFTP built in — no separate client, no export step • Every file shows its sync state: to upload, to download, in sync, or changed on both sides • Publish sends everything you changed in one go • Check Online tells you whether the live site is really answering AN ASSISTANT THAT WRITES FILES • Ask for a change in plain words; the assistant creates and updates real files in your project folder — HTML, CSS, JavaScript and SVG • Bring your own key: Claude (Anthropic), Gemini (Google), or Apple Intelligence running entirely on-device • Keys are kept in the iOS Keychain and nowhere else THE TOOLBOX • DOM outline of the open document • Elements library: HTML tags, form controls, CSS properties, PHP and Markdown blocks, ready to insert • CSS Designer: every selector in the file, every declaration, editable • Snippets panel BUILT FOR iPad • Files, editor and preview side by side • Two projects open in two windows at the same time • Hardware keyboard shortcuts throughout A sample site ships with the app, so there is a real project to open the first time you launch it. Universal purchase: buy once, and the Mac version is included.