# Mail Studio > Mail Studio is a free, browser-based visual email builder for designing responsive HTML emails, made by Mustaque Nadim (https://mustaquenadim.com). No account needed; work is saved in the browser. ## What it does - Drag-and-drop canvas with blocks: headings, text, lists, images, buttons, dividers, spacers and 2–4 column layouts. - In-place rich text editing; type "/" to insert a block. - AI template generation from a text prompt. - Starter templates: Welcome Email, Newsletter, Marketing Promo, Account Notification, plus color themes. - Desktop, tablet and mobile previews. - Email client compatibility checks based on caniemail.com data, plus broken-link checks. - Code view and export to HTML, MJML and Markdown; import from HTML, MJML and Markdown. - Send test emails through a test inbox, any SMTP server (Gmail, Outlook, SendGrid, Mailgun presets) or Resend. ## FAQ - Is Mail Studio free? Yes, it runs in the browser with no sign-up. - Can I export the email? Yes, as inline-styled HTML, MJML or Markdown. - Will my email render in Outlook and Gmail? The built-in compatibility check flags CSS and HTML features unsupported by major email clients.