Build any email with AI in minutes.
Tell the AI agent what you need and add a screenshot you like. It designs the whole email for you. Change anything, then send it.
No HTML, no design tools. Free plan: 3,000 emails a month.
Order confirmation for Acme. Match the style of this screenshot, keep it minimal, and add a button to view the order.
Trusted by 250+ developers
and used by people working at
Everything your team needs to ship emails
Design together, send with one API call, undo any change, and let AI make the first draft.
Real-time collaboration
Bring design, copy and engineering into one shared editor. Everyone works on the same template at the same time, so nothing gets lost between tools.
- Live cursors show who is editing what
- Changes appear for everyone instantly
- No more passing HTML files around
Send with a template ID
Your app sends a template ID and a few values. Reloop fills in the variables and delivers the latest published version.
- One API call to send any template
- Default values so nothing sends blank
- Update copy without shipping code
{
"to": "jordan@example.com",
"template": {
"id": "tmpl_k3x9q2v7m1wz",
"variables": {
"first_name": "Jordan"
}
}
}Version history
Every publish is saved, so you can go back to any earlier version the moment something looks wrong.
- Edit drafts without touching live email
- Compare two versions side by side
- Restore an old version in one click
- v4New hero imageNowPublished
- v3Shorter subject line2h ago
- v2Updated button copyYesterdayRestore
- v1First versionMar 12
AI email agent
Describe the email you need and add a screenshot you like. The agent designs the whole email and hands it to you ready to edit.
- Matches the layout and colors of your image
- Adds the variables for you
- Checks the quality before you see it
- A welcome email for new users Enter
- A password reset with a 30 minute link
- A receipt that matches my screenshot
Build from ChatGPT, Claude or Cursor
Skip the editor completely. Connect Reloop to the AI tool you already use and just ask for the email. It writes the template, saves it to Reloop, and can send it for you.
- Works with any app that supports MCP
- Saved as a real template you can edit later
- Connect in one command with the Reloop CLI
Make a password reset email for Acme with a 30 minute link and save it to Reloop.
reloop · create_templateDone. Password reset is saved and published, ready to send by ID.
{{{first_name}}}{{{reset_url}}}Want me to send a test to your inbox?
Design in the dashboard,
send from your code
Your app sends a template ID and a few values. Your team owns the design and copy, and ships changes without waiting on a release.
01Add variables
Drop {{{first_name}}} into any block. Give each variable a default so nothing ever sends blank.
02Publish a version
Only the published version sends. Keep editing the draft without touching live email.
03Send by ID
Pass the template ID and your values in the send call. Values you pass override the defaults.
1curl -X POST https://reloop.sh/api/mail/v1/send \2 -H "x-api-key: $RELOOP_API_KEY" \3 -H "Content-Type: application/json" \4 -d '{5 "from": "Acme <hello@acme.com>",6 "to": "jordan@example.com",7 "subject": "Your order is confirmed",8 "template": {9 "id": "tmpl_k3x9q2v7m1wz",10 "variables": {11 "first_name": "Jordan",12 "order_id": "28391",13 "total": "$124.00"14 }15 }16 }'Start from a ready-made template
Welcome, password reset, receipts and dozens more. Open one in the editor, make it yours, and send it.
FAQ
Questions about templates.
No. The visual editor has blocks for text, headings, buttons, images, columns, dividers and footers, and it writes the email-safe HTML for you. If you prefer code, switch to the HTML view or paste in markup you already have.
Publish the template, then call the send endpoint with a template object containing its id and your variables. The email uses the latest published version, so you can keep editing the draft without changing what goes out.
Add a variable such as {{{first_name}}} anywhere in the template and give it an optional default. At send time, values you pass in variables replace the placeholders, and any you leave out fall back to their default.
Yes. Connect the Reloop MCP server to your AI tool, or run the Reloop CLI to set it up, then ask for the email you need. The assistant writes the HTML and saves it to Reloop as a published template with its variables, so you can send it by ID or open it in the editor later.
Yes. Every published version is kept in the history panel. You can compare versions side by side and restore an earlier one in a click.
Yes. Preview it on desktop, tablet and mobile sizes, then send a test email to your own inbox from the editor.
Templates are included on every plan, including the free plan with 3,000 emails a month and no credit card. You can also try the editor without an account.