Webflow App

The AltTextify Alt Text App for Webflow helps you generate AI-powered alt text for images in your site’s Assets panel and CMS Image / Multi-Image fields. Generation is customer-triggered: you choose images and run Generate (or Generate All) in the Designer Extension. The App does not automatically generate alt text for every image in the background, and it does not scan the current Designer page canvas.

Permissions used: sites:read, assets:read, assets:write, cms:read, cms:write, authorized_user:read only (no Pages scopes). Length presets are Whisper / Murmur / Voice / Echo (character limits)—not separate writing-style products. Generated alt text should be reviewed; the App does not guarantee WCAG/ADA compliance or SEO rankings.

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Installation

From Your Webflow Admin

1. In Webflow, open Apps and browse or search for AltTextify Alt Text.
2. Install the App on your site and approve the requested permissions.
3. Preferred install URL (exact scopes): https://wbflwapp.alttextify.net/authorize

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Authorise App

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Connect AltTextify

1. Open the Designer Extension and click Connect to create a secure Designer session.
2. If you do not already have an AltTextify account, register at alttextify.net and create an API key from your profile.
3. Paste the API key in the App Settings tab and save. The key is transmitted to and stored by AltTextify’s Webflow backend for your user and site.

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Where to find AltTextify in Webflow

Designer → Apps → AltTextify Alt Text

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Settings

1. API Key: Enter and save your AltTextify API key. After save, the App shows a masked key only.
2. Language: Choose from 134 supported languages for generation (same list as in the App language dropdown).
3. Alt Text Length: Choose a generation preset. These limits match the App and backend:
   • Whisper — about 80 characters max
   • Murmur — about 150 characters max
   • Voice — about 200 characters max
   • Echo — about 250 characters max
4. SEO Keywords: Optional keywords/phrases for SEO-oriented alt text. Only one or two may be used per alt text, but all are considered. Keywords must be in English, even for alt text in other languages.
5. Negative Keywords: Optional phrases to avoid in generated alt text. Negative keywords must be in English, even if requesting alt text in another language.
6. Domain context: Optional context about your website/domain to help generate more relevant alt text (e.g., “This is an e-commerce website selling outdoor gear and camping equipment”).
7. Alt Text Prefix: Text to prepend to generated alt text.
8. Alt Text Suffix: Text to append to generated alt text.

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Generate Alt Text

Alt text is generated only when you start generation in the App. Opening the App or loading images does not consume credits or generate alt text by itself.

1. Use the Images tab for Site Assets, or the CMS tab for CMS Image / Multi-Image fields.
2. Generate alt text for one image, or use Generate All for supported images in the current list.
3. Review or edit the suggested alt text, then save it back to Webflow.
4. Refresh to reload images and current alt text from Webflow.
5. Filter images with / without alt text.
6. Optionally hide decorative images under 50px in width or height.

The Designer Extension does not include a workspace switcher. To work on a different Webflow site, open that site in the Designer and use the App there (each site uses its own install and settings).