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Best Free WordPress Plugins for Internal Linking

15 plugins compared · Updated August 2026 · Internal Linking

All 15 Free only Premium only

Choosing a WordPress plugin for internal linking comes down to a few things: whether it is still actively maintained, whether real users rate it well, and whether it does the specific job you need without dragging the rest of the site down.

We ranked 15 plugins using our WPScore, which weighs the user rating (adjusted for how many people actually rated it), how many sites run it, how recently it was updated, and which WordPress version it is tested against. 15 of them have enough public data to be scored; the rest are listed below the ranked block, clearly marked, rather than being given a number we cannot justify.

How this list is funded. Some links here earn us a commission if you buy. It costs you nothing extra, and it does not move anything up the list — the order comes from the WPScore, which is calculated from public ratings, install counts and update history. See the method.

At a glance

  1. 1. Internal Links Manager Best overall 85/100
  2. 2. Link Whisper Free 83/100
  3. 3. Interlinks Manager 83/100
  4. 4. Internal Linking of Related Contents 81/100
  5. 5. LinkBoss 80/100
  6. 6. Website Internal Link Optimiser 77/100
  7. 7. 4Linking 77/100
  8. 8. DominoPost 76/100
  9. 9. Glossary Tooltip 76/100
  10. 10. Tooltipy 75/100
  11. 11. Link Map Insights 70/100
  12. 12. Link Juice Optimizer 58/100
  13. 13. SEO Auto Linker 48/100
  14. 14. SEO SearchTerms Admin 46/100
  15. 15. No Sweat WP Internal Links Lite 40/100
1 Internal Links Manager
Best overall Free by webraketen

Internal Links Manager

Automated internal linking made easy. Optimize your SEO performance, strengthen your link juice, and improve user experience automatically.

4.8★
from 33 ratings
10k+
active installs
Updated
Jul 2026
Tested to
WP 7.0.4
85

WPScore

Read review View on WordPress.org
2 Link Whisper Free
Free by Spencer Haws

Link Whisper Free

The AI-powered internal linking plugin for WordPress. Build internal links faster, find linking opportunities, and improve SEO automatically.

4.1★
from 145 ratings
30k+
active installs
Updated
Aug 2026
Tested to
WP 7.0.4
83

WPScore

Read review View on WordPress.org
3 Interlinks Manager
Free by DAEXT

Interlinks Manager

Interlinks Manager is an SEO WordPress plugin that gives you the ability to monitor and optimize your internal links.

4.6★
from 5 ratings
7k+
active installs
Updated
Aug 2026
Tested to
WP 7.0.4
83

WPScore

Read review View on WordPress.org
5 LinkBoss
Free by ZVENTURES

LinkBoss

Boost SEO with AI-powered semantic internal linking. Build Silos, bulk interlink, fix orphan pages, and track rankings.

4.8★
from 17 ratings
2k+
active installs
Updated
May 2026
Tested to
WP 7.0.4
80

WPScore

Read review View on WordPress.org
6 Website Internal Link Optimiser
Free by Toast Plugins

Website Internal Link Optimiser

Website Internal Link Finder is a powerful tool that helps you improve internal linking across your site in a professional, efficient, and fully manua …

4.1★
from 8 ratings
200+
active installs
Updated
Aug 2026
Tested to
WP 7.0.4
77

WPScore

Read review View on WordPress.org
7 4Linking
Free by 04Code

4Linking

Automatic internal linking for WordPress — no more adding links by hand. Keyword rules, pillar pages and a visual link map.

5★
from 4 ratings
100+
active installs
Updated
Aug 2026
Tested to
WP 7.0.4
77

WPScore

Read review View on WordPress.org
8 DominoPost
Free by Dominopress

DominoPost

Enhance your WordPress workflow with a professional AI Writer, Automated Internal Linking, and advanced Classic Editor productivity tools.

5★
from 1 ratings
100+
active installs
Updated
Aug 2026
Tested to
WP 7.0.4
76

WPScore

Read review View on WordPress.org
9 Glossary Tooltip
Free by Jumedeen khan

Glossary Tooltip

Turn glossary terms into automatic links, show instant tooltips with definitions, and create a searchable A–Z glossary index page.

5★
from 1 ratings
100+
active installs
Updated
Aug 2026
Tested to
WP 7.1
76

WPScore

Read review View on WordPress.org
10 Tooltipy
Free by Jamel.Z

Tooltipy

Automatically add customizable keyword tooltips to your content and boost SEO, UX, and engagement — no coding required.

4.6★
from 68 ratings
1k+
active installs
Updated
Apr 2026
Tested to
WP 6.7.7
75

WPScore

Read review View on WordPress.org
11 Link Map Insights
Free by seoryco

Link Map Insights

Visualize your site's internal link structure in one click and find pages with no inbound or outbound links.

300+
active installs
Updated
Jul 2026
Tested to
WP 7.0.4
70

WPScore

Read review View on WordPress.org
12 Link Juice Optimizer
Free by Fede Gómez

Link Juice Optimizer

Replace links with a clickable <span> tag, add the nofollow attribute or remove the href attribute to optimize link juice.

5★
from 4 ratings
5k+
active installs
Updated
Jan 2024
Tested to
WP 6.4.10
58

WPScore

Read review View on WordPress.org
13 SEO Auto Linker
Free by chrisguitarguy

SEO Auto Linker

SEO Auto Linker allows you to automagically add links into your content. Great for internal linking!

3.9★
from 11 ratings
1k+
active installs
Updated
Nov 2017
Tested to
WP 3.5.2
48

WPScore

Read review View on WordPress.org
14 SEO SearchTerms Admin
Free by Julian M.

SEO SearchTerms Admin

This simple plugin will list all the incoming search terms generated by SEO SearchTerms Tagging 2. You will need to have SEO SearchTerms Tagging 2 in …

5★
from 1 ratings
100+
active installs
Updated
Aug 2013
Tested to
WP 3.6.1
46

WPScore

Read review View on WordPress.org