Can I work as a guest on a client's Webflow workspace with my Freelancer plan in order to embed code, or does the client need to upgrade their workspace for me to do that?

You can work as a guest in a Client's Webflow Workspace with your Freelancer plan, but whether you can embed custom code depends on the site’s hosting plan, not just workspace access or plan level.

1. Access as a Guest with Freelancer Plan

• Your Freelancer plan allows you to be invited as a Guest to another workspace.
• As a Guest, you can design, manage assets, and edit site content, depending on the role granted.
• You can work on multiple client projects without transferring projects or upgrading your own workspace.

2. Custom Code Requires Paid Hosting

• Embedding custom code (via Project Settings → Custom Code or inside Embed elements) requires a Site plan (e.g., Basic, CMS, or higher).
• If the project does not have a paid Site plan, custom code won’t render in the published site, even if accessible in Designer.

3. Client Workspace Plan Not a Limiting Factor

• The Client’s Workspace plan (Free, Core, Growth, etc.) does not limit custom code support.
• It only affects team collaboration limits and the number of members or guests.
• As long as you're added as a Guest and the site has a paid plan, you can embed code.

4. Where You Can Embed Custom Code

• Embed component in the Designer for code snippets like third-party widgets or scripts.
• Page Settings → Custom Code area for adding page-specific code like scripts in head/body.
• Project Settings → Custom Code for global head/body code.

Summary

You can embed code as a guest in the client’s workspace without needing them to upgrade their workspace. However, the site must have a paid Site plan (CMS or higher) for that code to function on the published site. Workspace plan affects collaboration; Site plan affects feature set like custom code.