How to Use the HTML App on UniLink

By UniLink Jun 26, 2026 2 min read

The HTML App on UniLink lets you embed custom HTML, CSS, and JavaScript directly onto your link-in-bio page, giving you unlimited flexibility to add any widget or feature you need.

What is the HTML App?

The HTML App is the most flexible tool in the UniLink app library. It gives you a raw HTML block that renders directly on your page, allowing you to embed third-party widgets, custom-styled content, countdown timers, booking widgets, payment buttons, and virtually anything else that can be expressed in HTML. It is designed for users who want to go beyond standard blocks.

How to Enable the HTML App

  1. Log in to UniLink Dashboard
  2. Go to the Apps section
  3. Find HTML and click Enable
  4. Paste your HTML code into the editor and save

Features and Configuration

  • Full HTML Support — Write or paste any valid HTML markup including inline styles, divs, tables, and semantic elements
  • CSS Styling — Include inline styles or a style tag to apply custom visual design to your embedded content
  • JavaScript Embeds — Add script tags to run interactive widgets, tracking pixels, or third-party integrations
  • Third-Party Widgets — Embed Calendly booking forms, Stripe payment buttons, Typeform surveys, and more
  • Multiple HTML Blocks — Add more than one HTML App block to place different embeds at different positions on your page
  • Sandboxed Rendering — Embedded code runs in a safe context that protects the integrity of your overall page

Best Practices

  • Test your HTML code in a browser before pasting it into UniLink to catch errors before they go live
  • Avoid overly complex JavaScript that slows page load — keep embedded scripts lightweight for the best visitor experience
  • Use the HTML App to embed booking calendars or contact forms right on your page to reduce friction and increase conversions

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