Drag blocks like in Stripo or BeeFree. Our engine auto-generates bulletproof HTML that works across Gmail, Outlook, mobile, and dark mode – with AI helping you write, design, and iterate.
01
Drop sections, layouts, and components while AI suggests variants, spacing, and content that match your brand.
02
Export tidy HTML you can hand to any ESP or developer – no nested tables nightmare or vendor lock-in.
03
Collaborate on templates, enforce brand presets, and ship sequences faster without waiting on design tickets.
FlowMailer focuses on the editing layer: drag-and-drop layout, AI-written copy, and reliable HTML that looks right in every inbox.
Describe your campaign and let FlowMailer draft a complete layout with sections, copy, and CTAs you can tweak visually.
Move rows, columns, images, and buttons with pixel-perfect control – no fiddling with tables or inline styles by hand.
Export HTML that plays nicely with Braze, Klaviyo, HubSpot, Customer.io and more – just paste and send.
Generate subject lines, preview text, and A/B variants that are aware of your layout and campaign goal.
From the first sketch to the HTML your ESP sends, FlowMailer keeps the editing flow fast, predictable, and collaboration friendly.
Before
Figma → tickets → HTML → ESP → broken layout in Outlook.
After
Design and HTML live in one canvas, powered by AI.
Result
More tests shipped, fewer surprises in the inbox.
FlowMailer cut our campaign production time in half. Our team drags blocks, tweaks copy with AI, and ships HTML straight into Braze without the usual back-and-forth over broken layouts.
Jenna Lee
Director of Lifecycle Marketing, Atlas
FlowMailer fits next to your ESP, not instead of it. Keep your current stack – just give your team a smarter editor.