Free WordPress Plugin

WMM AI Alt-Text

Accessible image alt text for WordPress, generated with your own OpenAI or Anthropic key. Built for agencies and freelance developers who manage many client sites. Every feature is free and fully functional — you only ever pay your AI provider.

What's included

Everything, free and unlocked

No locked features, no trial, no usage cap inside the plugin. The whole toolkit ships in the free WordPress.org release.

Bring Your Own Key

Use your own OpenAI or Anthropic API key — no per-image markup, no usage caps from us, no surprise invoices.

Auto-generate on upload

Every image you upload gets accessible, WCAG-friendly alt text automatically in the background.

Bulk regenerate

Process an entire client media library in one run, with pause/resume/cancel and a hard USD cost cap.

30+ languages

Generate alt text in the language your audience reads, with optional custom prompt templates.

Cost transparency

See an estimated dollar cost before any batch, and review a full history of every generation after.

Settings export / import

Configure one site, then replicate that configuration across every client site you manage.

Why BYOK

Margins agencies can actually keep

When you manage 20+ client sites, opaque per-image pricing destroys your margins. Bring-your-own-key keeps you in control.

Use the OpenAI / Anthropic key the client already pays for — pure pass-through, no markup games.

Or use your own agency key and bill the small API cost as a clear line item.

At gpt-4o-mini rates, ~$0.15 per 1,000 images. Processing 10,000 images costs about $1.50.

Data & privacy

Third-party services this plugin uses

The plugin sends your images only to the AI provider you choose and configure, using your own API key. No data passes through Webmaster & More servers.

OpenAI

Generates the alt-text description when OpenAI is your selected provider.

The image (URL or bytes) plus a short text prompt is sent to api.openai.com each time alt text is generated.

Anthropic

Generates the alt-text description when Anthropic is your selected provider.

The image (URL or bytes) plus a short text prompt is sent to api.anthropic.com each time alt text is generated.

Stop shipping images with empty alt text

Install WMM AI Alt-Text, add your API key, and let every image get described automatically.

Get it on WordPress.org