Build and manage lifecycle email with your agent

Draft emails, orchestrate workflows, and keep product, marketing, and transactional email in one place with the agent you already use.

Trusted byFramer · Customer since Dec 2022Linear · Customer since Jan 2023Perplexity · Customer since Mar 2023Granola · Customer since Sep 2024Clerk · Customer since Nov 2023Sketch · Customer since Oct 2025Reuters · Customer since Feb 2024Conductor · Customer since May 2026Y Combinator · W22
Send your first emailConnect Loops to Claude and ask your agent to draft it.Connect in Claude
Product
In one chat thread, the agent drafts the update, adds a variant for every plan, and connects the release flow.

Build powerful lifecycle workflows

Your best opportunity for connecting with users, once they close the tab, is the inbox. Time to use your best opportunity.

Design every email from one theme

Create a theme, define components or just write in the editor. Do it in the browser or ask your agent. Scale your designs to email in a few clicks.

Introducing themes

Design once, send everywhere

Set your colors, type, and spacing in one place. Every email you send picks them up automatically, so your brand stays consistent without anyone reformatting a template.

Change a token and the whole library follows.

See how themes work
Unsubscribe · Preferences · Sent with Loops
#1C1917
24px
1px solid
6px
1px
#1C1917
Inter
14px
#E6E6E6

Email marketing in sync with product

Connect Loops to your app and track what emails drive upgrades, churn reduction, and revenue. Build segments from properties and engagement, and they stay in sync with your product.

Goal conversions
124
Free → Pro
124
3.2%
Onboarding Complete
892
68%
Referral Link Click
445
12%
Saved segments3 total
Paying Customers1,240
Recent Signups850
Didn't open last campaign125

A delightful developer experience

We have contacts, contact properties, events and event properties. Understand the basics? You know how to use Loops.

POST
https://app.loops.so/api/v1/contacts/create
{
"email": "[email protected]",
"firstName": "Alice",
"lastName": "Smith",
"source": "signup_form",
"subscribed": true,
"userGroup": "paying"
}
/week
View on npm

Stay synced with your stack

Loops sits on top of your data to help you send emails. Connect the products you already use for a simple, connected experience.

WebhooksSupabaseClerkZapierFramerMakeSegmentWebflowBubbleStripePostHogAuth0

Your reputation, automatically protected

We’ve learned what protects a sender’s reputation at scale. Loops applies it automatically, with hands-on help from our team when needed.

Healthy
HighMediumLow
Spam rate0.03%
Bounce rate0.42%
SPF + DKIMPassing
Delivery errors0.18%

See why teams stay with Loops

Our retention is high. We spend most of our time building things for our existing customers. Here are some nice things they’ve said.

Start sending better email today

Start sending
better email today

Marketing, lifecycle, and transactional email in one platform.
Free to start, no credit card required.

Marketing, lifecycle, and transactional email in one platform. Free to start, no credit card required.