List of free UX tool/service for developerππ½
Microsoft Clarity
Clarity is a free user behavior analytics tool that helps you understand how users are interacting with your website through session replays and heatmaps.
Tag: UX, ux-testing, browser-test

Squeaky
Understand exactly how customers are using your website or web app, without invading their privacy.
Tag: ux, analytics, privacy, research, user-research, ux-testing, ui-testing
1000 recordings per month Unlimited team members Unlimited page views Unlimited analytics history Unlimited heatmaps Unlimited customer feedback responses

Hotjar
See how visitors are really using your website, collect user feedback and turn more visitors into customers.
Tag: UX, analytics
2000 pageviews per day Create up to 3 snapshot Heatmaps Snapshot Recordings, up to 100 per day (store up to 300) Send and store up to 3 surveys Create and store up to 3 Incoming Feedback widgets Store heatmap and recordings data for 365 days Unlimited team members