The 5 best real-time analytics platforms for developers, compared
Contents
"How many people are on my site right now? What are they up to?"
A real-time analytics platform lets you watch your product as it's being used – users currently online, pages they're on, the event that just fired three seconds ago, the referrer that's suddenly spiking...
Nothing beats a live dashboard when you're launching on Hacker News or running a flash sale.
This guide compares the best real-time analytics tools for developers, what each one does well, and how to pick the right one for you.
What features do you need in a real-time analytics platform?
At a minimum, a real-time analytics platform should include:
- A live dashboard of active users, pageviews, top pages, and referrers
- A real-time event stream or activity feed
- Geographic and device breakdown of current visitors
- Auto-refreshing data (every few seconds, ideally)
The best real-time analytics tools go further with:
- Live event data that's also queryable later – so "what happened during the launch spike" is still answerable next week
- Session replay integration – click a live user and watch what they're actually doing
- Identified users, not just anonymous pageviews – see which specific customer is on your pricing page right now
- Alerts on live metrics – get pinged when traffic spikes, signups stall, or errors jump
- Shareable or embeddable live views – TV-mode dashboards for war rooms or office displays
What's the best real-time analytics platform for developers?
1. PostHog
PostHog Web Analytics gives you a live dashboard showing who's on your site right now, what pages they're visiting, where they're coming from, and – because users are identified – which specific customers are currently active.
The real-time dashboard is currently in alpha.
What makes PostHog different from a standalone analytics tool is that it's a multi-tool developer platform. The same events powering your live view are also available across product analytics, session replay, feature flags, experiments, error tracking, LLM observability and more, all in one place.
Watch a launch spike land in real time, then jump into a session replay to see what users actually did when they arrived. If error tracking flags a problem mid-deploy, you can see who was affected, watch their sessions, and ship a fix behind a feature flag without leaving the tool. The anonymous visitor on your pricing page right now is already connected to the journey they'll have tomorrow when they sign up.
And when the spike dies down, the same live data is queryable natively with SQL.
In the next couple of weeks, PostHog will also add bot analytics – a real-time view of which AI crawlers (ChatGPT, Claude, Perplexity, etc.) are hitting your site, which pages they're indexing, and how that translates into LLM-referred traffic.
Useful when "who's on my site right now" increasingly includes agents, not just humans.
PostHog is free up to 1 million events, 5,000 session recordings, 1 million feature flag requests, and a lot more per month. After that, it's usage-based with configurable billing caps.
Strengths:
- Live dashboard with identified users
- Same events power analytics, replays, flags, experiments, error tracking, and more
- SQL access to the underlying data
- Bot analytics for tracking AI crawlers in real time
- Transparent usage-based pricing
Developers and product teams who want a live dashboard as part of a complete data workflow (analytics, flags, experiments, replays, and more), and who care about seeing which users are on their site right now, not just how many.
Install PostHog with one command
Paste this into your terminal and make AI do all the work.
2. Google Analytics 4
GA4 is, for many teams, still the default, and its Realtime report is probably the most widely-used live dashboard on the web.
It shows users in the last 30 minutes (and, since 2024, users in the last 5 minutes), top pages, traffic sources, events, and a map of where visitors are coming from. You can also click into a single random active user and see a timeline of what they've done in the session.
The good news: it has a large free tier, it's there, and most teams already have it installed.
The bad news: GA4 made everything more complicated than it used to be in Universal Analytics, the Realtime report is a single pre-built view you can't customize much, and you can't see specific users by email or any meaningful identifier.
GA4 also requires a cookie consent banner in most jurisdictions, and in several European countries its legality has been challenged. A meaningful chunk of traffic is simply not counted because users decline consent.
Strengths:
- Large free tier and nearly universally supported
- Live user count (30-minute and 5-minute windows)
- Integration with Google Ads and the broader Google ecosystem
- Huge ecosystem of tutorials, plugins, and agencies
Teams that need a live dashboard and are already invested in the Google ecosystem, especially for marketing-driven use cases where the tight integration with Google Ads matters.
3. Plausible
Plausible is a privacy-first, lightweight web analytics tool that puts everything (including live stats) on a single clean dashboard. The headline number at the top of the page is always "X current visitors," updated every few seconds. Below that, you see the same page you'd see a month from now, just with live-updating numbers: top pages, top sources, countries, devices.
[Plausible]'s(/blog/best-plausible-alternatives) appeal is simplicity. The tracking script is under 1 KB, there are no cookies by default (so no consent banner required in most cases), and the dashboard is designed to be readable in under a minute. It's open source and can be self-hosted.
The trade-off is depth. Plausible is a web analytics tool, not a product analytics one.
You can track custom events and set conversion goals, but you won't find deep funnels, cohort analysis, or identified-user tracking. If your use case is "what's happening on my marketing site right now," Plausible is a solid choice. If it's "which logged-in customers are currently active," look elsewhere.
Plausible starts at $9/month for 10K pageviews; there's a 30-day free trial.
Strengths:
- Clean, readable single-page dashboard with live stats
- Ultra-lightweight script (< 1 KB)
- Cookie-free and GDPR-compliant by default
- Open source and self-hostable
Content sites, marketing sites, and small SaaS teams that want a clean live dashboard without cookies, consent banners, or complexity.
4. Fathom Analytics
Fathom is Plausible's closest competitor – another privacy-first, simple web analytics tool with a single-page dashboard that prominently features current visitors. It's built around the same philosophy: minimal tracking, no cookies, GDPR/CCPA/PECR compliance by default, and a dashboard your CEO can read without training.
Fathom differentiates on a few specific details: it pioneered an early approach to bypassing ad blockers via custom domains (though some modern ad blockers like uBlock have since caught up), has slightly different pricing tiers ($15/month for 100K pageviews – modestly cheaper than Plausible's $19/month for the same volume), and is SaaS-only (no self-host option).
Like Plausible, Fathom is a web analytics tool, not a product analytics one. You can track events and conversions, but there's no funnel analysis, no cohort tracking, and no identified-user view.
Strengths:
- Sleek, simple dashboard with live visitor count
- Strong privacy credentials (GDPR, CCPA, PECR by default)
- Slightly cheaper than Plausible at the same pageview tier (e.g. $15 vs $19 at 100K)
- Forever data retention included on every plan
Privacy-conscious teams that want a simple live dashboard and don't need self-hosting. Especially good for content creators, solo founders, and agencies managing multiple sites.
5. Matomo
Matomo is the veteran open-source alternative to Google Analytics, and it has one of the most feature-complete real-time views in this list.
The Visitors → Real-time view shows a live-updating log of visitors with their location, pages viewed, referrer, browser, and time on site. You can click into any individual visitor and see their full session as it happens.
Matomo is the opposite of Plausible and Fathom in philosophy – instead of trimming to essentials, it gives you everything: heatmaps, session recordings, A/B testing, form analytics, funnels, custom dimensions, and goal tracking. It's often described as "self-hosted Google Analytics," and the interface reflects that (lots of menus, lots of options).
You can self-host Matomo for free, or use their cloud service. Self-hosting is genuinely free but requires server setup and maintenance. The tracking script is ~22 KB, and the default configuration uses cookies (though you can configure a cookieless mode).
Strengths:
- Most feature-complete real-time view of any tool in this list
- Self-host option gives you full data ownership
- Larger feature set: heatmaps, session recordings, A/B testing, form analytics
- Deep customization and plugin ecosystem
Teams that need a feature-rich real-time view with full data ownership and compliance control, and prefer to self-host – especially ecommerce, enterprise, or privacy-sensitive organizations willing to invest in setup.
Which real-time analytics tool should you choose?
- Want a live dashboard connected to product analytics, session replay, feature flags, and more? PostHog.
- Want something free that most teams already have, and only need basic live stats? Google Analytics 4.
- Want a clean, simple live dashboard for your content or marketing site? Plausible.
- Want the Plausible experience with longer data retention on every plan? Fathom.
- Want the most feature-complete real-time view with full data ownership? Matomo.
Recommendations by team type
For startups and solo developers
- PostHog if you want a live view plus everything else you'll need as you grow (analytics, replay, flags)
- Plausible or Fathom if you just want a clean live dashboard for a marketing site and nothing more
- GA4 if you want free and don't care about the UX or data privacy concerns
For product teams
- PostHog for a live view of identified users tied to session replay and feature flags
- Matomo if you need feature depth and data ownership
For marketing and content teams
- Plausible or Fathom for simple, shareable live dashboards
- GA4 if you need tight Google Ads integration
- Matomo if you need heatmaps, A/B testing, and form analytics alongside live stats
- PostHog for SEO and AEO specialists who want to see which AI crawlers are hitting their content in real time, alongside traditional traffic
For privacy-focused or compliance-driven teams
- Plausible or Fathom for cookie-free, consent-banner-free simplicity
- Matomo (self-hosted) for full data ownership and compliance control
- PostHog (self-hosted or EU cloud) for all the features with EU data residency
Is PostHog right for you?
Here's the (short) sales pitch.
We're biased, obviously, but PostHog is the best choice for a real-time analytics platform if:
- You want a live view of who's on your site right now – including identified users by email – connected to analytics, session replay, feature flags, and error tracking
- You value open source and transparent pricing
- You want to try before you buy with 1 million events free every month
It's completely free to get started – no credit card required. Our setup wizard handles configuration in minutes, or you can check out our docs to do it yourself.
Install PostHog with one command
Paste this into your terminal and make AI do all the work.
Frequently asked questions
What is a real-time analytics tool?
A real-time analytics tool lets you see what's happening on your site or product right now – how many users are active, what pages they're on, where they came from, and what they're doing.
Unlike batch-processed analytics (which might show data from hours or a day ago), real-time tools update their dashboards every few seconds.
"Real-time" in this context usually means data that's a few seconds to a few minutes old. True zero-latency analytics is rare and usually unnecessary – most teams just want to see their launch traffic live, monitor a campaign, or debug a spike as it happens.
How does real-time analytics differ from regular analytics?
Regular (or "batch") analytics processes events on a schedule – hourly, nightly, or daily – and shows you yesterday's or last week's data. It's good for trend analysis, reports, and retrospectives.
Real-time analytics shows you what's happening right now. Live active users, current top pages, the event that just fired. It's good for monitoring launches, running live experiments, catching issues as they happen, and generally seeing your product in use.
Most modern analytics tools – including all five in this guide – do both: a live view for "right now" and historical analysis for "what happened last month."
The difference is how prominent the live view is and how deep the tooling around it goes.
Do I need a real-time analytics tool, or is batch analytics enough?
If you're running a marketing site where traffic is fairly predictable and you look at analytics weekly, batch is probably fine. A once-a-day refresh rhythm won't hurt you.
If you fall into any of these situations, a real-time view becomes actually useful:
- You're about to launch something (new product, pricing change, marketing campaign) and want to watch it land
- You're running paid campaigns and need to spot wasted spend fast
- You ship code multiple times a day and want to catch regressions before your users do
- You have a product-led growth motion where knowing which users are active matters
For most product teams, a tool with a good real-time view pays for itself the first time you watch a launch go sideways and catch it in minutes instead of hours.
Can I see who specifically is on my site right now?
Only if your analytics tool supports identified users. PostHog and Matomo (with some configuration) can show you specific logged-in users by email or user ID.
GA4, Plausible, and Fathom are built around aggregate data and don't identify users by default – you'll see "23 active users" and a breakdown by page, but not who specifically.
For logged-in product experiences where knowing which customer is on the pricing page matters, you want a tool with identified-user support. For public marketing sites, aggregate live stats are usually enough (and better from a privacy standpoint).
What's the best free real-time analytics tool?
PostHog has the most generous free tier of any tool with serious real-time features: 1 million events/month, 5,000 session recordings, 1 million feature flag requests. Most small teams can stay on the free plan indefinitely.
Google Analytics 4 is also free but has the trade-offs discussed above – limited customization, no identified users, and consent-banner requirements in many jurisdictions.
Matomo self-hosted is free (but you pay in server and engineering costs). Plausible and Fathom both have 30-day free trials but no permanent free tier.
Which real-time analytics tool is most privacy-friendly?
Plausible and Fathom are both built around privacy-first analytics: no cookies by default, no personal data collected, no consent banner required in most jurisdictions. They're the default recommendation for teams that want analytics without the compliance overhead.
PostHog and Matomo can both be configured for privacy-friendly operation (cookieless tracking, self-hosting, EU data residency) but require some setup. They're better choices when you need deeper features and are willing to configure them carefully.
GA4 is cookie-based by default and typically require a consent banner.
Can I self-host a real-time analytics tool?
Yes. PostHog, Matomo, and Plausible all support self-hosting. Self-hosting gives you full data ownership and can help with compliance, but you pay in server and maintenance costs.
Fathom and GA4 are all SaaS-only.
For most teams, a managed cloud plan ends up simpler and cheaper once you factor in engineering time. Self-hosting makes sense if you have strict data residency requirements, a dedicated infra team, or very high data volumes.
How does PostHog compare to Google Analytics?
GA4 is a web and marketing analytics tool, optimized for traffic analysis, ad campaign tracking, and broad audience reporting. It's free and widely adopted, but limited in depth – especially around identified users, custom event analysis, and real-time visibility of specific customers.
PostHog is a developer-first product platform with web analytics included. The live dashboard shows you not just aggregate counts but specific users by email. The same data powers product analytics, session replay, feature flags, and error tracking – so you can go from "this user is on the pricing page right now" to "watch their session" to "ship a fix" in one tool.
For marketing sites, GA4 is fine. For product-led SaaS, PostHog's depth usually wins.
What's the best web analytics tool overall?
This guide focuses specifically on real-time analytics – tools that show you who's on your site right now. If you're looking for a broader comparison of web analytics tools (covering historical reporting, attribution, custom events, dashboards, and more, not just live views), we have a separate guide: the best web analytics tools, compared.
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PostHog is an all-in-one developer platform for building successful products. We provide product analytics, web analytics, session replay, error tracking, feature flags, experiments, surveys, LLM analytics, logs, workflows, endpoints, data warehouse, CDP, and an AI product assistant to help debug your code, ship features faster, and keep all your usage and customer data in one stack.