How to Build an Automated Multilingual Webflow CMS with DeepL AI
Translating hundreds of Webflow CMS items manually into Spanish, German, or French is expensive and creates out-of-sync localized pages.
Required Tool Stack
Architecture & Data Flow
Webflow Item Created/Updated Webhook fires
DeepL API translates titles, slugs, and HTML body preserving tags
Webflow Localization API saves translated locale items automatically
Step-by-Step Implementation Guide
Set Up Webflow Item Publish Webhook
Create a Custom Webhook in Make.com and register it in Webflow Project Settings > Integrations > Webhooks with event 'collection_item_changed'.
Translate Rich Text with DeepL XML-Preserving API
Send the HTML content to DeepL API with tag_handling=xml so HTML tags (like <a>, <strong>, <h2>) remain perfectly intact during translation.
POST https://api.deepl.com/v2/translate Authorization: DeepL-Auth-Key YOUR_DEEPL_API_KEY Content-Type: application/x-www-form-urlencoded text=<h2>How to Scale Your SaaS</h2><p>Learn more <a href='/signup'>here</a>.</p>&target_lang=ES&tag_handling=xml
Update Webflow Localized Item via REST API
Use Webflow API v2 localized item endpoint to write the translated payload into the target language locale.
PATCH https://api.webflow.com/v2/collections/YOUR_COLLECTION_ID/items/YOUR_ITEM_ID?cmsLocaleId=LOCALE_ID
Authorization: Bearer YOUR_WEBFLOW_API_TOKEN
Content-Type: application/json
{
"fieldData": {
"name": "Cómo Escalar su SaaS",
"post-body": "<h2>Cómo Escalar su SaaS</h2><p>Aprende más <a href='/signup'>aquí</a>.</p>"
}
}Common Pitfalls & Gotchas
Always use tag_handling=xml in DeepL requests to prevent the AI from altering href attributes or slug formatting.
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