Build and scale 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
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
Email marketing in sync with product
See which emails lead to upgrades, lower churn, and add revenue. Segments stay current as people change.
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
{
"firstName": "Alice",
"lastName": "Smith",
"source": "signup_form",
"subscribed": true,
"userGroup": "paying"
}
Works with the tools you already use
Connect your product data to Loops. Segments and workflows stay current without CSV exports.
Your reputation, automatically protected
Every send is checked to protect your sender reputation. Our team steps in when you need help.
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.