Bilder Alt

Description

Bilder Alt automatically creates SEO-friendly and accessible alt texts for all images in your WordPress media library. The plugin uses state-of-the-art artificial intelligence to generate accurate and relevant image descriptions – fully automated.

Key Benefits:

  • Save time by automating alt text creation
  • Improve website accessibility (WCAG-compliant)
  • Enhance visibility in Google Image Search
  • Seamless integration into the WordPress media library
  • Manual or automatic generation options
  • Cloud-based: No server resources needed

Note: A free API key is required. You can register at https://app.bilder-alt.de and receive 25 free credits.

External Services

This plugin connects to the external API at https://app.bilder-alt.de in order to automatically generate alt texts for uploaded images using AI.

When used, the plugin sends the following data to the API:
– Image files (temporarily for analysis)
– Optional keywords (if configured)
– Your personal API key (for authentication)

The API responds with:
– AI-generated alt texts
– Current credit balance
– Supported languages

This service is provided by BlueBranch GmbH. For legal information, please refer to:
Imprint
Privacy Policy

Further Information

For documentation, demos, and API access, visit https://app.bilder-alt.de.
Free 25 credits!

License

This plugin is licensed under the GPLv2 or later.

Installation

  1. Download and unzip the plugin.
  2. Upload the folder to /wp-content/plugins/ or install it via the WordPress Plugin Directory.
  3. Activate the plugin via the “Plugins” menu in your WordPress dashboard.
  4. Go to Settings > Bilder Alt, enter your API key, and start generating alt texts in your media library.

FAQ

Is the plugin free to use?

Yes, the plugin is free. You receive 25 credits after registration. Additional credits can be purchased at https://app.bilder-alt.de.

Which image formats are supported?

The plugin supports PNG, JPEG, JPG, GIF, and WEBP formats.

Can I edit the generated alt texts?

Yes, you can review and adjust the generated alt texts manually after creation.

Are my images uploaded or stored on external servers?

No, your images are not stored on the bilder-alt.de server. Only temporary access is required for analysis.

Reviews

9. Oktober 2025
Bilder Alt is a fantastic little WordPress plugin for generating accurate, context-aware alt text. It “reads” each image and adds relevant descriptions automatically, which saves me time and mental energy while improving accessibility and on-page SEO. If you’re serious about search performance—and tired of writing alt text by hand—this tool is a no-brainer.
Read all 1 review

Contributors & Developers

“Bilder Alt” is open source software. The following people have contributed to this plugin.

Contributors

Translate “Bilder Alt” into your language.

Interested in development?

Browse the code, check out the SVN repository, or subscribe to the development log by RSS.

Changelog

1.0.2

  • Fix missing reload files after bulk edit

1.0.1

  • Add new image formats and assets for the plugin

1.0.0

  • Initial release
  • Manual and automatic alt text generation
  • Support for multiple image formats
  • API integration with key management
  • Renamed internal files, functions, constants, and config variables for consistency
  • Replaced direct cURL usage with WordPress HTTP API (wp_remote_post) and http_api_curl hook
  • Added if (!defined('ABSPATH')) exit; to all PHP files for basic security
  • Added == External Services == section to clarify API usage and data handling
  • Updated Contributors field with correct WordPress.org usernames