No. 8 of 24 ·Event Tracking Software

walkerOS

Web · Self-hosted · API

Freedom report

Two barsScore 6.4

Free tierA free tier is on its own pricing page
Open codeNo open-source code on record
Runs widely1 of 6 device platforms
DocumentedPlans, terms and facts published

walkerOS is ranked #8 of 24 in event tracking software on Freedom251. It runs on API, Self-hosted, Web. There is a free plan.

walkerOS plans and pricing

All plans

walkerOS Free MIT-licensed software · no event limits · self-hosted; infrastructure costs are your responsibility walkeros.io · 4 Oct 2026

Starter implementation Not published €5,000 Single website · 2 destinations · 2 weeks delivery · 14 days bug-fix support elbwalker.com · 4 Oct 2026

Compared on event tracking software

Free plan: Yes
Web collection: Yes
Server-side collection: Yes
Event routing: Yes

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The record

Product: walkerOS is an open-source event data collection platform that captures, transforms, and routes behavioral events with built-in consent management.
License: The maker describes walkerOS as MIT-licensed and free forever, with no restrictions.
Audience: walkerOS is built for analytics engineers, data leads, and developers who own analytics on custom-built apps.
Event model: A walkerOS flow connects event sources through a collector to destinations, and may run client-side, server-side, or both.
Tracking features: Its features include composable HTML-attribute tagging, event mapping, and consent-aware event queuing.
Integrations: Documented destinations include analytics tools such as GA4, Amplitude, Mixpanel, PostHog and Segment; marketing tools such as Google Ads, Meta and TikTok; and warehouses such as BigQuery, Kafka and SQLite.
Custom destinations: The documentation says users can build a custom destination for any endpoint.
Deployment: Users can run walkerOS themselves with Docker or Node.js, bundle it as a standalone artifact, or integrate it into application code; managed hosting is also described as an option.
Configuration: Integrated mode provides programmatic TypeScript control, while bundled mode uses JSON configuration and the CLI.
Privacy controls: Consent controls can be configured at destination and property level, and events can be queued until consent is granted.
Security and data control: The maker says self-hosting keeps data on the customer's infrastructure and tracking changes can be reviewed and deployed through its code and CI/CD workflow.
Support: elbwalker offers implementation guidance, consulting, and ongoing support, including a listed two-hour session for €399 EUR.
Company: walkerOS is a project by elbwalker, which describes its team as analytics developers based in Hamburg.
Legal entity: The imprint identifies elbwalker GmbH at Gerhofstraße 1-3, 20354 Hamburg.
Price from: Free

Where it ranks on Freedom251

Best Event Tracking Software in 2026#8 of 24

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Sources

walkeros.io/docs/· checked 4 Oct 2026
walkeros.io· checked 4 Oct 2026
walkeros.io/docs/destinations/· checked 4 Oct 2026
walkeros.io/docs/getting-started/deploy· checked 4 Oct 2026
walkeros.io/docs/getting-started/modes/· checked 4 Oct 2026
walkeros.io/docs/guides/consent/· checked 4 Oct 2026
elbwalker.com· checked 4 Oct 2026
elbwalker.com/legal/imprint/· checked 4 Oct 2026
walkeros.io/docs/comparisons/rudderstack· checked 4 Oct 2026
walkeros.io/docs/getting-started/observe· checked 4 Oct 2026