Hrefix

Hrefix is a lightweight, 100% local broken link checker for WordPress.

No account. No cloud scanning service. No external API. Hrefix stores and checks links on your own WordPress site using WP-Cron and the WordPress HTTP API.

Popular alternatives moved scanning to hosted cloud services that require accounts. Hrefix keeps the workflow inside WordPress.

Features:

• Extracts links from published posts, pages, and public custom post types.
• Scans <a href> and <img src> values.
• Checks links in small WP-Cron batches.
• Uses HEAD requests with GET fallback for servers that reject HEAD.
• Flags broken links, redirects, and warning states.
• Treats 429 responses and timeouts as warnings until repeated failures.
• Lets you recheck, edit, unlink, or dismiss links.
• Replaces edited URLs in source post content.
• Removes links while preserving anchor text.
• Suggests similar published permalinks for broken internal links.
• Creates simple local 301 redirects for broken internal URLs.
• Includes a Redirects tab for manual add/delete.
• Includes a Dashboard widget with broken/warning counts.
• Settings for batch size, post types, exclusions, and external-link checking.

Everything in the free plugin is functional. There is no locked trialware code.