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Open Source Website Optimization Tools Software (2026)
Last updated: March 2026
6 software options
Sponsored
Based on GetApp‘s extensive, proprietary database of in-depth, verified user reviews
Performance testing and monitoring
Sign up for free access with our perpetual free tier and 100 GB/month of data ingest included.
Read more about New Relic
Based on GetApp‘s extensive, proprietary database of in-depth, verified user reviews
Heatmaps, Session Replay, Funnels, Form analytics and more
Read more about Mouseflow
Based on GetApp‘s extensive, proprietary database of in-depth, verified user reviews
See what your users want—with Clarity
Free tool. Enjoy all the features of Clarity at absolutely zero cost. You'll never run into traffic limits or be forced to upgrade to a paid version.
Read more about Microsoft Clarity
Based on GetApp‘s extensive, proprietary database of in-depth, verified user reviews
Take back control with Matomo
Per number of page views.
Read more about Matomo
Based on GetApp‘s extensive, proprietary database of in-depth, verified user reviews
Digital experience and content management platform
Jahia offers a free version and a trial for 30 days. Paid plans include monthly subscriptions, details of which are outlined below: jContent Community Edition - Free jContent - Starting at €1700 per month jEnterprise - Starting at €3000 per month
Read more about Jahia
Based on GetApp‘s extensive, proprietary database of in-depth, verified user reviews
A WordPress plugin to manage multiple sites from one screen.
The MainWP plugin is 100% FREE, forever! However, MainWP Pro offers a wide range of 30+ premium Extensions at a single price. The extensions aren't required, but they extend the functionality to improve your workflows. During the subscription, you'll get Priority Support, Important security & performance updates for existing extensions, and access to all new extensions. - Monthly: $29/mon - Yearly: $199/year (Saving $149 as compared to monthly) - Lifetime: $499 (One-time)
Read more about MainWP