Contact management
built for scale
Organize your contacts with lists, segments, and custom properties. Import from CSV, sync via API, and keep your audience data clean.
Your contacts, organized
Everything you need to manage, segment, and understand your audience.
Contact profiles
Rich profiles for every contact. See email history, engagement data, custom properties, tags, and list membership in one place.
Smart segments
Create dynamic segments based on properties, behavior, and engagement. Segments update automatically as contacts change.
Lists & groups
Organize contacts into lists for campaigns and automations. Contacts can belong to multiple lists.
Tags & custom properties
Add custom properties and tags to contacts. Store any data you need — plan type, company, signup date, and more.
Import & export
Bulk import contacts from CSV files with field mapping. Export your data anytime in CSV format.
API sync
Create, update, and manage contacts programmatically via the REST API. Keep your app and SendKit in sync.
Keep your data clean
Tools to maintain list hygiene, track engagement, and sync data across your stack.
Loved by developers and teams
See how teams are using SendKit to power their email infrastructure.
We switched to SendKit for our transactional emails and saw deliverability jump from 94% to 99.2%. The API is clean, the docs are great, and we were integrated in under an hour.
SendKit's SMTP relay was the easiest migration we've done. We just swapped the credentials and everything worked. The real-time webhooks for bounce handling saved us weeks of work.
The campaign builder is surprisingly powerful for a developer-focused tool. We run our entire newsletter and drip sequences through SendKit now. The analytics are exactly what we needed.
What sold us was the pricing transparency. No per-contact fees, no surprise charges. We send 500K transactional emails a month and the cost is predictable every single time.
We needed both transactional and marketing email in one platform. SendKit handles our password resets, order confirmations, AND our weekly newsletter. One dashboard, one bill, zero headaches.
The automation workflows are a game-changer. We set up onboarding sequences that trigger based on user events via the API. Our activation rate improved 40% in the first month.
We switched to SendKit for our transactional emails and saw deliverability jump from 94% to 99.2%. The API is clean, the docs are great, and we were integrated in under an hour.
SendKit's SMTP relay was the easiest migration we've done. We just swapped the credentials and everything worked. The real-time webhooks for bounce handling saved us weeks of work.
The campaign builder is surprisingly powerful for a developer-focused tool. We run our entire newsletter and drip sequences through SendKit now. The analytics are exactly what we needed.
What sold us was the pricing transparency. No per-contact fees, no surprise charges. We send 500K transactional emails a month and the cost is predictable every single time.
We needed both transactional and marketing email in one platform. SendKit handles our password resets, order confirmations, AND our weekly newsletter. One dashboard, one bill, zero headaches.
The automation workflows are a game-changer. We set up onboarding sequences that trigger based on user events via the API. Our activation rate improved 40% in the first month.
Ready to send better emails?
Start for free and scale as you grow. No credit card required. Get up and running in minutes with our API and SMTP relay.