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Free Chrome Extension

Build WordPress Internal Links Across Every Post at Once

Paste a keyword and a destination URL — the extension finds every matching post via the WordPress REST API and inserts the link automatically. No plugin, no manual scanning.

FreeMV3REST API
15+ Extensions Built
Free Forever
MV3 Compliant
Zero Data Collected
Built by a Senior Engineer
Why you need it

The problem it solves

From hours to minutes

Manually scanning 50+ posts for a keyword to interlink takes hours. This extension does it in seconds via the WordPress REST API.

No plugin needed on WordPress

Uses the native WordPress REST API — no third-party plugin installation or database modifications beyond the links themselves.

Review before applying

Preview every proposed link replacement before committing. You stay in control of every change.

See it in action

Live Demo

WordPress Blog Interlink — Live Demo
Full feature set

Everything it can do

Keyword Search Across All Posts

Retrieves all posts containing a keyword via the REST API.

Bulk Link Insertion

Apply a target URL to all matching posts in one action, or selectively approve post-by-post.

Preview Mode

See the before/after diff for each post before committing changes.

Undo Support

Revert any link insertion to the original content.

Application Password Auth

Authenticates using WordPress Application Passwords — core feature since WP 5.6.

Multi-Site Ready

Configure multiple WordPress sites and switch between them.

How it stacks up

vs. the alternatives

FeatureWordPress Blog InterlinkManual Post-by-PostYoast Premium
Batch update across all postsYesYes
No plugin on WordPress neededYesYes
Preview before applyingYesYes
FreeYesYes
Time for 50 posts<2 min2–3 hours<5 min
Got questions?

Frequently asked

Does it require a WordPress plugin?
No. It uses the WordPress REST API with Application Passwords — both are built into WordPress core.
Can I preview changes before applying?
Yes. The extension shows a before/after diff for every post before any changes are written.
Is it safe to use on a live site?
Yes. It only modifies post content — no database structure, theme files, or plugin settings are touched.
How does authentication work?
You provide a WordPress Application Password (generated in wp-admin → Users → Profile), stored locally in the extension.
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Free to install — no sign-up needed

Works on Chrome, Edge, Brave, and all Chromium-based browsers. No account, no subscription, no strings.

WordPress Blog Interlink is an independent browser extension built by an individual developer. It is not affiliated with Automattic Inc. or the WordPress Foundation. “WordPress” is referenced only to describe the platform this extension is compatible with.