How to Add Custom Fonts to Klaviyo

Updated on:

May 12, 2026

By:

Use this interactive demo to learn how to apply a custom font inside a Klaviyo email campaign.

Quick summary

Adding custom fonts to Klaviyo lets you match your email campaigns to your brand's typography by pasting font code directly into the source code editor. This seven-step process works inside Klaviyo's drag-and-drop email campaign editor without requiring any third-party tools.

Steps

Go to the Campaigns section and navigate to your desired email campaign.
Click Edit to open the campaign and customize it with your brand's unique voice.
Select Text under the Content section, then drag it into your email.
Go to Source code and click on the drop-down arrow to expand the editor.
Paste the custom font code inside the source code field.
Hit Apply to confirm and save your font changes.
Your custom font has been successfully added to your Klaviyo email campaign.

📌 Why this matters

Custom fonts in Klaviyo email campaigns are a key branding lever — consistent typography across every email reinforces brand recognition and improves perceived professionalism. Klaviyo's source code editor gives marketers direct control over font rendering without needing a developer, making it easy to match email design to a brand's style guide. For ecommerce and DTC brands that rely on Klaviyo for retention marketing, this feature ensures every customer touchpoint looks polished and on-brand. Mastering custom font implementation in Klaviyo helps teams deliver higher-quality email experiences that stand out in crowded inboxes.

Your product deserves an interactive demo

Start free

Klaviyo Opencart Integration

How to Mass Delete Profiles in Klaviyo

How to Create Newsletter in Klaviyo