Side by side
Interlink vs Link&Cluster
Both stand on internal linking tools. Which one you can start free with, which one lets you read the code, and what each costs once you pay.
Free plan Self-hostedWeb
Interlink provides internal-link audits and controlled link insertion for WordPress sites. Its default local analysis and optional AI workflow have different data flows, so consider which mode you need.
Visit Interlink Free plan Open source Self-hosted
Choose Link&Cluster if you manage a WordPress site and want link counts, cluster-based organization, or suggested link opportunities. Look elsewhere if you need automatic linking or require a plugin confirmed tested with the latest three major WordPress releases.
Visit Link&ClusterThe facts
| Interlink | Link&Cluster | |
|---|---|---|
| Free plan | Yes | Yes |
| Open source | Not published | Yes |
| Runs on | Self-hosted, Web | Self-hosted |
| Lowest paid plan | Free or on request | Pro: $34, paid once |
| Plans published | 1 | 4 |
| Maker | Not published | Not published |
| Website | readygotools.com | linkandcluster.com |
| On internal linking tools | #7 of 24 | #3 of 24 |
Interlink: what it does well
- Finds orphaned and under-linked posts.
- Suggestions require approval before content changes.
- Inserted links use existing text and support undo.
- Default analysis runs locally without external requests or tracking.
What to know first
- Requires WordPress 5.5 or higher.
- Requires PHP 7.4 or higher.
- Optional AI relevance sends post text and titles externally.
Link&Cluster: what it does well
- Free Starter plan includes incoming internal link counts.
- Counts can be sorted or filtered across posts.
- Clusters can use categories or custom taxonomies.
- Related-post box wording and design are customizable.
- Pro includes lifetime updates.
What to know first
- The WordPress.org listing reports no testing with the latest three major WordPress releases.
- Automatic linking is not offered.
- Pro costs $44, paid once.
Alternatives to Interlink Alternatives to Link&Cluster The whole list