Plausible vs Fathom — 2026 privacy-first analytics pick

Pick Fathom if your traffic is above 10,000 pageviews/month. At 100K PV, Fathom costs $15/mo; the Plausible Business plan — the tier that includes API access — runs ~$39/mo. That 2.6× gap is permanent and compounds monthly. Pick Plausible if self-hosting is a hard requirement, you’re under 10K PV and the $6/mo difference matters, or you need Strict Order Funnels (which Fathom doesn’t have yet).

Both tools are cookie-free, GDPR-compliant without a consent banner, and fast enough that neither will show up in your Lighthouse report. The choice isn’t about ethics — both are legitimate. It’s about price at your traffic level and one or two features that only one of them ships.

Who this is for

Indie developers and small teams choosing a privacy-first analytics tool in 2026. If you’re migrating off Google Analytics, this applies to you directly — see our Plausible vs Google Analytics breakdown for that specific comparison. It doesn’t apply if you need enterprise SSO, multi-goal attribution funnels across 10+ steps, or raw event export on a sub-$50 plan.

What we tested

Plausible v3.2.1 (cloud and Community Edition, May 2026). Fathom cloud (tested May 2026). Pricing verified from each tool’s public pricing page in May 2026. Script sizes measured via curl on the tracking snippet served to a test page — both tools’ scripts are deterministic and don’t vary per request. Plausible CE tested against a 3-container Docker Compose setup on a 2 GB RAM VPS.

Pricing at scale

This is the actual differentiator. Privacy posture, UI, and basic integrations are close enough to be a rounding error at most traffic levels.

Traffic	Plausible	Fathom	Winner
<10K PV/mo	$9/mo (Starter)	$15/mo	Plausible
100K PV/mo + API	~$39/mo (Business)	$15/mo	Fathom 2.6× cheaper
1M PV/mo + API	~$139/mo (Business)	$60/mo	Fathom 2.3× cheaper

“API access” matters because Fathom includes it on every plan starting at $15/mo. Plausible gates the API behind Business. If you pull analytics data into a dashboard, a CI check, or a weekly report, that gate is a real cost driver.

One non-obvious billing trap that applies to both tools: custom events count toward your pageview quota. A site with 50K raw pageviews and 30K custom events (form submits, button clicks, purchase completions) is billed at 80K PV on either platform. That pushes you toward the next tier.

Script overhead

Both scripts load with defer — non-blocking, not on the critical render path.

Tool	Script size
Plausible	2,855 bytes (~2.8 KB)
Fathom	6,905 bytes (~6.9 KB)

Plausible’s script is 2.4× smaller. On a page with any real JavaScript payload, a 7 KB deferred script is noise. Core Web Vitals won’t move. If you’re building a sub-5 KB static site where every transferred byte is a deliberate choice, Plausible is meaningfully lighter. For everyone else: ignore this comparison, it doesn’t decide anything.

Data model

Fathom keeps data forever on every plan. You pay $15/mo today, your 2019 traffic is still queryable in 2031.

Plausible retains data for 3 years on Starter and Growth plans, 5 years on Business. A long-lived project that starts on Starter and grows past 100K PV will eventually hit Business pricing — at which point the 5-year window kicks in. But if you downgrade or stay on a lower tier, historical data beyond 3 years disappears.

Both tools take a similar approach to cookieless fingerprinting: daily-rotating hashes tied to IP address, User-Agent, and domain. No persistent cookies, no consent banner required under GDPR. The implementation difference is transparency:

Plausible: EU-hosted (Germany/Estonia), open source (AGPLv3), processing logic is verifiable
Fathom: EU Isolation on all plans by default — EU visitor IPs are processed entirely within EU infrastructure, never touching US servers. Closed source; the trust model is the isolation guarantee, not code audibility.

Neither is meaningfully weaker from a compliance standpoint. Plausible’s open-source angle matters if your legal team needs to audit the implementation. Fathom’s EU Isolation claim is backed by infrastructure architecture. Both are defensible.

Self-hosting

Only Plausible can be self-hosted. Fathom is cloud-only, no exceptions.

The Plausible Community Edition (AGPLv3) requires three Docker containers: the Elixir application, Postgres, and ClickHouse. Minimum 2 GB RAM on the host. ClickHouse is a columnar database optimized for analytics queries — fast at wide-column aggregations, memory-hungry, and operationally heavier than Postgres; if you haven’t operated it before, expect an afternoon for initial setup and ongoing overhead when ClickHouse releases updates. (For a full benchmark, see ClickHouse vs Postgres for analytics.)

What’s missing from CE compared to Plausible Cloud:

Funnels (Strict Order Funnels, Plausible Cloud only)
Revenue goals
SSO / team management

CE ships roughly twice a year. Cloud ships multiple times per week. Feature parity will never catch up. If you’re self-hosting because you want a specific cloud feature, that feature won’t land in CE for months — if ever.

One hard flag: Plausible CE v3.2.1 (May 2026) patched a remote code execution vulnerability in the /storybook endpoint. All prior CE versions — v3.2.0 and earlier — are affected. If you’re running CE, upgrade now. Plausible Cloud users were never exposed.

Self-hosting makes sense in two scenarios: you have data residency requirements that no cloud provider can fulfill contractually, or you’re running a multi-tenant platform where you’re providing analytics as a feature and need full control of the data layer. For everyone else, the operational cost isn’t worth it when Plausible Cloud starts at $9/mo.

API and integrations

Feature	Plausible	Fathom
API tier	Business (~$39/mo at 100K PV)	All plans ($15/mo)
API rate limit	600 req/hr	2,000 req/hr
Custom events vs PV quota	Count toward quota	Count toward quota

Both tools have official packages for Next.js and Astro, and documented Cloudflare Workers integrations. Fathom shipped Google Search Console integration (February 17, 2026) — keyword data alongside traffic in a single view without switching tabs.

Plausible has been shipping product faster over the past 12 months: Strict Order Funnels (April 2026), custom properties on goals (February 2026), automatic form submission tracking (October 2025). Fathom added entry/exit pages and custom CSV exports — but funnels are still absent from its roadmap. If multi-step conversion analysis is a workflow requirement, Plausible is currently the only option in this category.

Lock-in

Plausible carries lower lock-in risk. It’s open source, self-hostable, exports via CSV and API, and offers raw event export on Enterprise. If Plausible raises prices past the break-even point with Fathom, you can export data and migrate to CE.

Fathom is closed source with no self-hosting option. CSV export and API access on all plans reduce the practical risk — you can always pull your data. But if the service changes terms or pricing, your migration path is to another SaaS tool, not a self-hosted fallback.

Verdict

Pick Fathom if:

Your traffic is above 10K PV/month — the pricing gap is real and permanent
You want API access without paying a premium tier
Forever data retention on every plan matters to your use case
You don’t need Strict Order Funnels

Pick Plausible if:

Self-hosting is a hard requirement — it’s the only privacy-first tool that supports it
You’re under 10K PV and $15/mo is a real constraint
You need Strict Order Funnels today — Fathom doesn’t have them
You want open-source, auditable privacy implementation

If you’re starting fresh with no existing analytics data and expect to grow past 10K PV, default to Fathom. The pricing advantage compounds; the simpler product is easier to explain to non-technical stakeholders. Come back to Plausible when a specific feature gap — funnels, self-hosting — forces the decision.

Caveats

Pricing verified May 2026. Both Plausible and Fathom have changed plan structure in the past 18 months — confirm current pricing before committing. Script sizes are single measurements from live production scripts.

The Plausible CE RCE (May 2026) is the first disclosed critical vulnerability in CE’s history. Patch response was fast. One incident is limited signal, but it’s worth noting for self-hosting risk assessments.

Toolchew earns affiliate commissions from both tools: 33% recurring on Plausible, 25% recurring on Fathom. The pricing analysis was run before this article was written. Fathom won at scale because the numbers say so.