PostHog as a Hotjar alternative: replay and heatmaps, without the separate bill
Hotjar built its business on session replay and heatmaps as a standalone tool. PostHog offers a comparable capability bundled into a broader product-analytics platform. The honest comparison is depth of the UX-specific tooling versus consolidation.
The honest field: dedicated tool versus bundled capability
Hotjar's entire product is built around session replay, heatmaps, and lightweight UX feedback (surveys, feedback widgets). It does that one job well and has for a long time. PostHog offers session replay and heatmap-style tooling as part of a broader product-analytics platform that also includes funnels, feature flags, and surveys.
Dimension by dimension
Dimension
Hotjar
PostHog
Core focus
Dedicated UX research: replay, heatmaps, feedback
All-in-one: replay bundled with analytics, flags, surveys
Product analytics
Not a core product
Native, deep product analytics
Self-hosting
Not available
Available (open-source core)
Best fit
Teams whose primary need is UX research specifically
Teams wanting replay alongside product analytics and flags
When PostHog is the better move
If replay and heatmaps are one input into a broader product-analytics practice - not the whole practice - consolidating onto PostHog removes a separate tool, a separate bill, and a separate place data lives. That is the consolidation argument in its honest form: not "Hotjar is worse," but "you may not need a separate tool for this."
When Hotjar still wins
If UX research (feedback widgets, surveys tuned specifically for that purpose, a team that lives in heatmaps daily) is the actual job, a dedicated tool built around exactly that use case can still out-perform a bundled capability inside a broader platform.
Frequently Asked Questions
Does PostHog do heatmaps like Hotjar?
PostHog offers heatmap-style visualization alongside its session replay product; feature depth compared to Hotjar's dedicated heatmap tooling should be evaluated directly against your own use case.
Why switch from Hotjar to PostHog instead of running both?
The usual driver is consolidation - if you already use or are adopting PostHog for product analytics and feature flags, adding replay/heatmaps in the same platform removes a separate bill and a separate data silo.
Is Hotjar still better for pure UX research?
Hotjar's dedicated focus on UX research (surveys, feedback widgets, heatmaps refined for that specific use case) can still be the better fit for teams whose primary need is UX research rather than broader product analytics.
Do you help migrate off Hotjar?
Yes - moving replay and heatmap workflows onto PostHog is typically a lighter migration than a full analytics-platform switch, since there's less historical event data at stake, but sampling and masking configuration still needs to be scoped deliberately.
Considering PostHog instead of Hotjar?
We scope replay sampling and masking so the switch doesn't just move the same all-record habits into a new tool.