walkerOS

Free plan APISelf-hostedWeb

What walkerOS is

walkerOS is an open-source platform for collecting, transforming, and routing behavioral events, with consent management built in. An event flow links sources to a collector and destinations, and can run client-side, server-side, or in both places. Tracking features include HTML-attribute tagging, event mapping, and consent-aware event queuing. Teams can set consent rules for destinations and individual properties, and hold events until consent is granted. Documented destinations include analytics tools such as GA4, Amplitude, Mixpanel, PostHog, and Segment; marketing services such as Google Ads, Meta, and TikTok; and data stores such as BigQuery, Kafka, and SQLite. Users can build destinations for custom endpoints. The MIT-licensed software is described as free with no event limits. Teams can run it with Docker or Node.js, bundle it, or integrate it into application code; a managed Cloud option is also described. Self-hosting keeps data on the customer’s infrastructure, but the customer pays its infrastructure costs. The intended users are analytics engineers, data leads, and developers responsible for analytics on custom-built apps.

Who it suits

walkerOS is aimed at analytics engineers, data leads, and developers who manage analytics for custom-built apps. It suits teams that want control over event collection, routing, and consent settings.

What it does well

MIT-licensed software is described as free with no event limits.
Supports client-side and server-side event collection.
Consent rules can apply to destinations and properties.
Users can create destinations for custom endpoints.
Can be self-hosted with Docker or Node.js.

What to know first

Self-hosting users pay their own infrastructure costs.
No Cloud price is stated.
A listed implementation session costs €399 EUR.

Limits

The walkerOS software is free and has no event limits, but self-hosting infrastructure costs are the customer's responsibility. The Starter implementation package covers one website, two destinations, two weeks of delivery, and 14 days of bug-fix support.

Plans

Plan	Billed and limits	Price
walkerOS	MIT-licensed software · no event limits · self-hosted; infrastructure costs are your responsibility	Free
Starter implementation	€5,000 · Single website · 2 destinations · 2 weeks delivery · 14 days bug-fix support	On request

As walkeros.io lists them, read 4 Oct 2026. The maker's own page has the final word.

Getting started

Visit the walkerOS website.
Choose self-hosting with Docker or Node.js, a standalone bundle, or application-code integration.
For integrated mode, configure it with TypeScript; for bundled mode, use JSON configuration and the CLI.
Connect event sources through a collector to destinations.
Configure consent requirements at destination or property level.
Consider the managed Cloud option for team flow settings, managed deploys, and live observability.

Verdict

walkerOS offers flexible collection and routing with configurable consent controls. Teams choosing self-hosting should account for infrastructure costs; the maker also describes managed hosting and implementation support.

Questions

Is walkerOS open source?

Yes. The software is described as open-source and MIT-licensed.

How much does the walkerOS software cost?

The walkerOS plan is listed as free. It has no event limits; self-hosting infrastructure costs are the customer's responsibility.

Can walkerOS collect events on both web and server?

Yes. Web collection and server-side collection are listed, and an event flow may run client-side, server-side, or both.

Which integrations are documented?

Destinations include GA4, Amplitude, Mixpanel, PostHog, Segment, Google Ads, Meta, TikTok, BigQuery, Kafka, and SQLite. Users can also create a destination for any endpoint.

Who makes walkerOS?

walkerOS is a project by elbwalker, which describes its team as analytics developers based in Hamburg. The imprint identifies elbwalker GmbH in Hamburg, Germany.

What is included in the Starter implementation package?

It covers a single website, two destinations, two weeks of delivery, and 14 days of bug-fix support. The listed billing amount is €5,000.

Facts from walkerOS's own pages

Audience: walkerOS is built for analytics engineers, data leads, and developers who own analytics on custom-built apps. · walkeros.io, 4 Oct 2026
Company: walkerOS is a project by elbwalker, which describes its team as analytics developers based in Hamburg. · walkeros.io, 4 Oct 2026
Configuration: Integrated mode provides programmatic TypeScript control, while bundled mode uses JSON configuration and the CLI. · walkeros.io, 4 Oct 2026
Consent: walkerOS can queue events before consent, process them when consent is granted, and apply consent requirements at destination and property level. · walkeros.io, 4 Oct 2026
Custom destinations: The documentation says users can build a custom destination for any endpoint. · walkeros.io, 4 Oct 2026
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. · walkeros.io, 4 Oct 2026
Event model: A walkerOS flow connects event sources through a collector to destinations, and may run client-side, server-side, or both. · walkeros.io, 4 Oct 2026
Headquarters: Hamburg, Germany · walkeros.io, 28 Sept 2026
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. · walkeros.io, 4 Oct 2026
Legal entity: The imprint identifies elbwalker GmbH at Gerhofstraße 1-3, 20354 Hamburg. · elbwalker.com, 4 Oct 2026
License: The maker describes walkerOS as MIT-licensed and free forever, with no restrictions. · walkeros.io, 4 Oct 2026
License and cost: The software is MIT-licensed, free, and described as having no event limits; users pay their own infrastructure costs when self-hosting. · walkeros.io, 4 Oct 2026
Managed option: The maker describes walkerOS Cloud as a hosted app offering team flow settings, managed deploys, and live observability; no Cloud price was stated on the opened page. · walkeros.io, 4 Oct 2026
Privacy controls: Consent controls can be configured at destination and property level, and events can be queued until consent is granted. · walkeros.io, 4 Oct 2026
Product: walkerOS is an open-source event data collection platform that captures, transforms, and routes behavioral events with built-in consent management. · walkeros.io, 4 Oct 2026
Purpose: walkerOS is an open-source event data collection platform that captures, transforms, and routes behavioral events with built-in consent management. · walkeros.io, 4 Oct 2026
Security: The documented Docker image runs as a non-root user, uses a minimal Alpine base, excludes build tools, and includes health checks. · walkeros.io, 4 Oct 2026
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. · walkeros.io, 4 Oct 2026
Support: elbwalker offers implementation guidance, consulting, and ongoing support, including a 2-hour session listed at €399. · walkeros.io, 4 Oct 2026
Tracking features: Its features include composable HTML-attribute tagging, event mapping, and consent-aware event queuing. · walkeros.io, 4 Oct 2026

Where walkerOS stands on Freedom251

Event Tracking Software#11 of 24