Can I open-source PostHog?
KINDA · partial or early alternativesKinda. Plausible and Umami cover the core of PostHog, but they're early or partial — expect gaps like session replay and feature flags and experiments.
Teams pay because analytics has to keep collecting and stay trustworthy while the product changes underneath it. The bill buys bot filtering, identity resolution, late-arriving data, retention, query cost, and someone else getting paged when ingestion stops. The charts are the cheap part.
xsession replay
xfeature flags and experiments
xidentity stitching across devices
xSQL over years of events
xingestion that stays up without you watching it
These projects already replace it, free.
PPostHogAll-in-one product analytics with session replay, feature flags, experiments, and surveysopen source↗UUmamiSimple privacy-focused web analytics on Node.js with Postgres/MySQL and a clean dashboardopen source↗PPlausibleLightweight, privacy-friendly, cookieless web analytics in a single Docker deploymentopen source↗What each one is, in full: PostHog · Umami · Plausible
no votes, no pay-to-list · just what's real
PostHog pricing
| plan | monthly | annual (per mo) | what you get |
|---|---|---|---|
| free | $0/workspace | $0/workspace | 1 project, 1-year retention, unlimited team members; monthly product allowances include 1M analytics events, 5,000 session recordings, 1M feature-flag requests, 100,000 exceptions, 1,500 survey responses, 1M warehouse rows, 10,000 pipeline trigger events plus 1M batch rows, 100,000 AI-observability events, 500 AI credits, 3 PRs, 10,000 workflow messages/channel, 10GB logs, and 2,500 Replay Vision credits |
| pay-as-you-go | $0/workspace | — | Starts at $0 while under the same monthly free allowances; 6 projects, 7-year retention, unlimited team members and tracked users |
| boost platform package | $250/workspace | — | Adds platform-level controls and support features to the separately metered PostHog products |
| scale platform package | $750/workspace | — | Higher platform-level controls and support package; product usage remains separately metered |
| enterprise platform package | custom | — | Custom platform controls, support and commercial terms; all product usage remains separately priced |
free tier1 project and 1-year retention; monthly: 1M analytics events, 5,000 session recordings, 1M feature-flag requests, 100,000 exceptions, 1,500 survey responses, 1M warehouse rows, 10,000 pipeline trigger events plus 1M batch rows, 100,000 AI-observability events, 500 AI credits, 3 PRs, 10,000 workflow messages/channel, 10GB logs, and 2,500 Replay Vision credits; unlimited team members
billingmonthly usage-based billing only; no annual plan published; free allowances reset monthly and remain after adding a card
hidden costsEvery product meters separately after its free allowance: analytics from $0.00005/anonymous event or $0.000248/identified event, replay from $0.005/recording, flags from $0.0001/request, surveys from $0.10/response, warehouse rows from $0.000015, pipelines from $0.0005/trigger event, exceptions from $0.00037, AI from $0.01/credit, logs from $0.25/GB, workflows from $0.003/email, Inbox at $15/PR, and Replay Vision at $0.01/credit; optional Boost/Scale packages add $250/$750 per month.
verified 2026-08-12 · source ↗
Can I open-source PostHog?
Kinda. PostHog covers the core of PostHog, but there are real gaps: session replay, feature flags and experiments. Read the honest list above before committing.
How much does PostHog cost?
PostHog's pricing is usage-based or varies by plan · No stable monthly subscription; pricing is usage based with a free allowance. Page checked 2026-07-31: product analytics free to 1M events/month, then from $0.00005/event..
What do I lose by replacing PostHog?
Honestly: session replay; feature flags and experiments; identity stitching across devices; SQL over years of events; ingestion that stays up without you watching it. If any of those are load-bearing for you, keep paying.
Is there an open-source alternative to PostHog?
Yes: PostHog (All-in-one product analytics with session replay, feature flags, experiments, and surveys) Umami (Simple privacy-focused web analytics on Node.js with Postgres/MySQL and a clean dashboard) Plausible (Lightweight, privacy-friendly, cookieless web analytics in a single Docker deployment)