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Interested in building UI extensions for the App Marketplace?

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Customize your CRM with powerful UI extensions

Use React to build flexible custom cards that integrate seamlessly with HubSpot’s standard features.
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CRM card for creating and managing product shipments, creation has multiple steps and shows the delivery progress.

The future is customizable

  • Hear from developers who have already built new custom views in HubSpot.
  • Find out how React opens up a new world of customization.
  • See examples of custom cards in action.

Read the HubSpot blog to find out more

INBOUND23 sessions

Grow Better with CRM UI Customization

Grow Better with CRM UI Customization

Katherine Man and Sejal Parikh from the HubSpot CRM product team, highlight the new CRM UI customization feature that allows businesses to tailor their CRM experience to their unique needs. Featuring a detailed walk-through of the configuration and extensibility features offered.

Watch now
IN23 Session CRMCUST

Build Deep CRM Customization to Supercharge Your Business

This enlightening session, originally presented at INBOUND 23, offers viewers a comprehensive look into the essential nature of CRM customization and its pivotal role in modern business processes as well as a step by step demo of building a custom card

Watch now
IN23 Session Scale

Scaling Business with HubSpot Platform Functionality

HubSpot Developer Advocates, Dennis Edson and Hannah Seligson demonstrate how to scale businesses using HubSpot's platform functionality using custom objects, custom cards and custom coded actions

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Extending and Customizing the HubSpot CRM Platform

Extending and Customizing the HubSpot CRM Platform

Join Kelly Serebin, Scott Brinker, and Brian Gorbett as they dive into the intricacies of the HubSpot ecosystem. Discover insights on app partnerships, platform quality, and the pivotal shift from product suites to comprehensive platforms

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Case study: See UI extensions in action

From custom stairs to custom cards

Viewrail are a leading manufacturer of custom railings and stairs. As their business has grown, so has their need to customize HubSpot.

In this video case study, you'll see how they've harnessed the flexibility of UI extensions to improve their connection with customers.

Read what Viewrail developers have to say

Colin Johnson, Revenue Operations Specialist at Viewrail

Being able to build a custom card, tap into serverless functions with React, API and different things. It opens a whole new world of flexibility for our business.

Colin Johnson

Revenue Operations Specialist

Viewrail

Viewrail

Guides and resources

New to react? Learn about React now

New to React?

A great primer for developers who are completely new to working with the React Javascript library or are in need of a refresher.

Learn about React
Create your first custom card

Create your first custom card

A step-by-step guide to building your first React + GraphQL Custom Card for HubSpot’s CRM.

Get started
Read the documentation

Documentation

Ready to dive deeper into what the new tools can do? We've got the docs for that, with lots of lovely code samples.

Read the docs
Branden Rogers

How to use HubSpot Developer Projects and Local Dev Like a Boss

detailed tutorial showcasing how to create developer projects, and develop locally. Brandon also demonstrates how to maintain product and sandbox environment separation to ensure safe testing and deployment.

HUG react cards

HubSpot User Group on React based custom cards

React framework meets the HubSpot CRM. Learn the basics of React in video form and then dive into React UI Extensions.

Admin HUG on Custom Cards

Admin HubSpot User Group on Custom Cards

In this Admin HUG, learn about all the different ways that HubSpot customers are unlocking the power of customization with custom cards.

Vector image of developer at a computer

Join the community

Our active developer community is ready to welcome you.

How to get involved

Early adopters, step right up

Be one of the first developers to unlock the power of UI extensions.

Join the beta now