Table of Contents
- What is Webflow?
- Types of Custom Codes You Can Add to Webflow
- Why Use Custom Code in Webflow?
- How to Add Custom Code in Webflow?
- Limitations of Adding Custom Codes to Webflow
- Can we Host Custom Code Files on Webflow?
- Best Practices for Adding Custom Code to Webflow
- Character Limits on Custom Code in Webflow
- How to Troubleshoot and Debug Webflow Custom Code?
- FAQs about Adding Custom Code to Webflow
- Conclusion
- How WPPRO Can Help Customise Your Webflow Website?
Curious about adding custom code to Webflow? This guide covers everything you need to know, from basic concepts to practical applications.

Before we delve into the details, let’s briefly explain what Webflow is.
What is Webflow?
Webflow is a low-code platform that enables users to create and design websites without needing extensive coding knowledge. You can build websites, create templates, and manage content visually.
However, sometimes adding custom code is necessary for functionalities like Google Analytics tracking or enhancing the design. This guide will outline how to add these codes efficiently.
Types of Custom Codes You Can Add to Webflow
Here are the types of custom codes you can incorporate into your Webflow projects:
- HTML, CSS, and JavaScript: These foundational web technologies can be integrated through embedded codes or custom code options in the header and body sections.
- Third-Party Code Snippets: Integrate tools like Google Analytics by adding their code snippets directly into your Webflow website.
- Embedded Codes: Add visual elements or forms to enhance your site’s interactivity and appeal.
Why Use Custom Code in Webflow?
Adding custom code to your Webflow projects offers several advantages:
1. Enhance Functionality
Custom code can significantly extend your site’s capabilities, allowing you to add features like interactive maps or third-party integrations.
2. Improve Design Capabilities
By implementing custom CSS and JavaScript, you can create more advanced animations and optimise SEO through structured data.
3. Integrate External APIs
Fetch data from APIs not natively supported by Webflow, enabling dynamic content display on your site.
4. Add Specialised Tools
Custom libraries can be integrated for unique functionalities that aren’t available in Webflow.
How to Add Custom Code in Webflow?
Here’s how to add custom code in Webflow, covering page-level, global, and embedded options.
Page-Specific Custom Code
To add code to a specific page:
- Access Page Settings: Navigate to the desired page and click the settings icon.
- Add Custom Code: Locate the Custom Code section in Page Settings.
- Insert Your Code: Paste your custom code in the designated areas.
- Save Changes: Save your updates to apply the custom code.
This method allows for tailored functionality on individual pages.
Global or Site-Level Custom Code
To apply custom code across all pages:
- Navigate to Site Settings: Access Site Settings from the dashboard.
- Go to Custom Code Section: Find the Custom Code option.
- Insert Custom Code: Add your code to the Header or Footer sections.
This ensures consistency throughout your Webflow project.
Embedded Custom Code
Add custom code directly to any part of the page with an embedded code container.
- Select the specific page and choose to add an Embed Code.
- Paste your code in the provided field.

Limitations of Adding Custom Codes to Webflow
Be aware of these limitations when adding custom code:
- Technical Constraints: Code is restricted to specific sections, with global code limited to header or footer.
- Security Risks: External scripts may expose vulnerabilities.
- Performance Issues: Excessive scripts can slow down your site.
- Maintenance Needs: Updates must be manually managed.
- SEO Concerns: Improper code can affect search engine indexing.
Can We Host Custom Code Files on Webflow?
No, Webflow does not support hosting custom code files. However, you can link to externally hosted files:
<script src=”https://your-cdn.com/custom-script.js”></script>
Options for Hosting Files
Consider these platforms for hosting:
- GitHub
- AWS
- Replit
Example Custom Code #1: Integrating a Calendly Widget
To integrate a Calendly widget, use the following code:
<!-- Calendly inline widget --> <div class="calendly-inline-widget" data-url="https://calendly.com/your-link" style="min-width:320px;height:630px;></div> <script type="text/javascript" src="https://assets.calendly.com/assets/external/widget.js" async></script>
Example Custom Code #2: Custom Javascript Code for Webflow
Use the following code to include a JavaScript file:
<script src="https://cdn.jsdelivr.net/gh/username/gist-id@latest/custom-script.js"></script>
Best Practices for Adding Custom Code to Webflow
Follow these best practices:
- Validate Code: Ensure the code is valid and from reputable sources.
- Naming Conventions: Use clear naming for easy updates.
- Comment Your Code: Add comments for clarity.
- Manageable Code: Break complex scripts into smaller parts.
Character Limits on Custom Code in Webflow
Webflow has a default character limit of 10,000 in the head and 20,000 in the body. To exceed these limits:
- Host Externally: Use third-party servers for larger scripts.
- Break Down Your Code: Simplify by segmenting larger scripts.
- Use Tag Manager: Manage scripts via Google Tag Manager.
How to Troubleshoot and Debug Webflow Custom Code?
To troubleshoot:
- Check Compatibility: Ensure the code works across devices.
- Use Debugging Tools: Identify and fix errors.
- Thorough Testing: Test in staging before publishing.
FAQs about Adding Custom Code to Webflow
Can We Add Custom CSS in Webflow?
Yes, you can add custom CSS in Webflow through the global or page-level custom code options.
Can You Add Python Custom Code to Webflow?
No, Python code cannot be added directly to Webflow. However, you can call hosted Python files through APIs.
Conclusion
Understanding how to add custom code in Webflow can greatly enhance your site’s functionality and design. This guide provides practical steps to implement HTML, CSS, and JavaScript effectively.
How WPPRO Can Help Customise Your Webflow Website?
WPPRO is a leading Webflow development agency in Australia, offering tailored solutions for your Webflow projects. Contact us for customisation and support.
