Build and manage lifecycle email with your agent

Loops is email marketing software for SaaS teams, built to run product, marketing, and transactional email 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
Start with the agent you already useAdd Loops, then ask your agent to draft and send your first email.
Product
Draft a launch update, tailor it for every plan, and turn it into a ready-to-run customer journey.

Lifecycle workflows that run themselves

Reach users after they close the tab. Set up onboarding, activation, upgrade, and winback emails once.

Design every email from one theme

Use themes and component to build your brand and watch every email inherit it. Write in the editor or ask your agent for help along the way.

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

See which emails lead to upgrades, lower churn, and add revenue. Segments stay current as people change.

Goal conversions
124
Free → Pro
124
3.2%
Onboarding Complete
892
68%
Referral Link Click
445
12%

An easy yes from engineering

When your emails need product data, connecting Loops is a quick implementation for engineering.

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

Works with the tools you already use

Connect your product data to Loops. Segments and workflows stay current without CSV exports.

WebhooksSupabaseClerkZapierFramerMakeSegmentWebflowBubbleStripePostHogAuth0

Your reputation, automatically protected

Every send is checked to protect your sender reputation. Our team steps in when you need help.

Healthy
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.