Enable reliable, data-driven
messaging at scale.
Knock makes it easy to unify your data from any source,
so you can enable personalized messaging at scale.
Unify and activate your data.
Ingest real-time data from your product and warehouse so you can trigger reliable, timely messaging based on any attribute, event, or webhook.
Unify and activate your data.
Ingest real-time data from your product and warehouse so you can trigger reliable, timely messaging based on any attribute, event, or webhook.
Ingest data from warehouse, CDP, or reverse ETL sources.
Build dynamic audience segments using attributes, events, and relations.
Trigger workflows from API calls, usage events, or segment changes.
Ingest data from warehouse, CDP, or reverse ETL sources.
Build dynamic audience segments using attributes, events, and relations.
Trigger workflows from API calls, usage events, or segment changes.
Flexible data modeling. Sync custom objects and relations to ensure consistent, clean data usage.
Reliable personalization. Confidently add data to messaging, with guardrails to prevent errors.
Flexible data modeling. Sync custom objects and relations to ensure consistent, clean data usage.
Reliable personalization. Confidently add data to messaging, with guardrails to prevent errors.
Monitor sending health and engagement metrics. View logs for every message so you can trace every interaction.
Monitor sending health and engagement metrics. View logs for every message so you can trace every interaction.
Full control over every message sent.
Centralize your workflows, templates, and design system to deliver messages consistently across teams and channels, reducing errors and inconsistencies.
Full control over every message sent.
Centralize your workflows, templates, and design system to deliver messages consistently across teams and channels, reducing errors and inconsistencies.
On-brand, error-free messaging every time. Enforce global layouts, create reusable content blocks, and see live previews.
On-brand, error-free messaging every time. Enforce global layouts, create reusable content blocks, and see live previews.
Build reliable messaging workflows with drag-and-drop flexibility.
Deliver messages exactly when and where your users expect them.
Manage messaging across email, SMS, push, chat, and in-app channels.
Build reliable messaging workflows with drag-and-drop flexibility.
Deliver messages exactly when and where your users expect them.
Manage messaging across email, SMS, push, chat, and in-app channels.
User-centric controls. Respect users with send windows, preference centers, and localization.
Every channel in one system. Consolidate in-app and out-of-app messaging for unified data.
User-centric controls. Respect users with send windows, preference centers, and localization.
Every channel in one system. Consolidate in-app and out-of-app messaging for unified data.
Messaging
infrastructure
you can trust.
99.99% uptime
We take being a downstream provider seriously.
Scaled delivery
Knock delivers hundreds of millions of messages per month.
HIPAA
SOC2
GDPR
CCPA
Trusted in production at
"Improved CS response times by 27%"
Knock lets us focus on what we do best. Within two months we had a system handling 15M notifications with full visibility into performance. Agents using the new notification center show approximately a 27% improvement in first response time and 32% faster ticket resolution rates compared to the previous system.
Yegor Yakovishen
Senior engineering manager • Gorgias
"A powerful system for running data-driven growth plays"
Knock helps us send timely, data-driven e-mail notifications and usage digests that build strong user habits. The product is reliable and flexible, and the team is fantastic to partner with.
Karishma Rajaratnam
Product Marketing • Clay
"What used to take weeks now takes minutes"
Thanks to Knock's core functionality, our teams are able to easily build complex notification flows. We now have a notification system that is easy to use and that our teams love to work with!
Chamila Amithirigala
Staff software engineer • Amplitude
"We're able to focus on driving adoption of new features"
We knew that enabling our product and marketing teams to message users in the product would lead to more engagement and higher retention. Knock was exactly what we were looking for.
Utkarsh Sengar
VP of Engineering • Webflow
"Double the engagement while cutting costs"
One of the biggest things for me with Knock was the ability to change workflow logic without needing a developer. Before Knock, we saw users coming to the website about three times a week. After Knock, it was almost every day.
Tessa Kilbride
Senior Product Manager • Nellis Auction
"Easy access for our non-technical team"
The level of visibility Knock provides into our notification system was a game-changer. Our customer service team can now easily access the entire history of a notification, from the initial template to the final delivered message.
Troy Blakely
Engineering lead • Discogs
"Knock was the right choice"
With Knock, we were able to quickly implement both in-app and email notifications that help our users stay engaged with their presentations and polls.
Oscar Albrecht
Engineering Director • Mentimeter
"Improved CS response times by 27%"
Knock lets us focus on what we do best. Within two months we had a system handling 15M notifications with full visibility into performance. Agents using the new notification center show approximately a 27% improvement in first response time and 32% faster ticket resolution rates compared to the previous system.
Yegor Yakovishen
Senior engineering manager • Gorgias
"A powerful system for running data-driven growth plays"
Knock helps us send timely, data-driven e-mail notifications and usage digests that build strong user habits. The product is reliable and flexible, and the team is fantastic to partner with.
Karishma Rajaratnam
Product Marketing • Clay
See how Knock stacks up
Compare Knock to other notification and messaging platforms.