About this plugin
Image Alt Sync scans selected posts and updates any <img> tags found in the post content that reference media items (class wp-image-### ), and replaces their alt attributes with the attachment’s _wp_attachment_image_alt value:
– If the image is in the Media Library, it prefers the attachment’s Alt Text.
– If no attachment alt is set, it falls back to the image filename (without extension) or the post title (configurable in the UI).
– Optionally skip images that aren’t found in the Media Library.
g. jpg,webp ).
Run in dry run first to see exactly what would change. The log shows each post processed and any per-image alt changes.
Highlights
– Processes per post in batches with a customizable delay (default 100 posts, 1s).
– Filter by post status and date range (quick buttons: Today, Yesterday, Last week, Last month, YTD, All).
– Validate that “Date after” ≤ “Date before”.
– Limit by Post ID range with buttons to auto-fill lowest and highest post IDs.
– Skip posts without <img> (optional).
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– Dry run (browser & WP-CLI) shows clickable post IDs, post titles, filenames, and detailed old → new alt replacements.
– Only processes posts that have at least one image attachment.
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Usage
- Choose your filters (date range, min/max post ID, or “Apply to all posts”).
- Set Batch size and optional Delay between batches to throttle load.
- Choose a Date Range, or click a shortcut button (autofills Date after / Date before ).
- (Optional) Enter Lowest/Highest Post ID or click the quick-fill buttons.
- (Optional) Check Skip posts without <img>.
- (Optional) Enter Exclude extensions like.svg,.gif.
- Optionally enable Dry run to preview changes without saving.
- Click Start. Progress and detailed per-post changes appear in the log.
- If needed, click Stop to pause after the current batch finishes.
Tips
– Use the “Lowest ID” and “Highest ID” buttons to auto-fill the ID range.
g. jpg, jpeg, png, webp ) to target specific image types.
– Check “Skip images not in media library” to avoid external or missing files.
Usage (WP-CLI)
From your WordPress root:
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Args
– --status= publish|pending|draft|any (default: publish)
– --after= YYYY-MM-DD (optional)
– --before= YYYY-MM-DD (optional)
– --batch-size= integer (default: 100)
– --delay= seconds (float, default: 1)
– --dry-run flag (no changes saved if provided)
– --low-id= minimum post ID (optional)
– --high-id= maximum post ID (optional)
– --skip-noimg= 1|0 (default 0)
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Credits
Crafted with ❤️ for accessible content.