We built the consent platform we couldn’t buy.

cmpstack exists to give agencies, developers and SaaS teams a consent platform that’s fast, honest, and actually enjoyable to use.

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Script weight: <4KB; 4,092 bytes gzipped, measured from the build
Layout shift: <0.10; Budget enforced by a check that fails CI
Regulations: GDPR + CCPA; Multi-regulation, zero config
Integration: 1 snippet; All you need to go live — no server required

01 / Origin

Built by people who hated existing CMPs

Most consent management platforms were designed for compliance lawyers, not developers. They’re slow, bloated, and impossible to customise without reading 80 pages of documentation.

We started cmpstack because we were building client sites and kept hitting the same wall. Every tool either compromised page speed, locked you into an ugly default banner, or charged per pageview — penalising your own success.

So we built the tool we wanted. Lightweight by design, developer-friendly by default, and priced fairly for the agencies and teams actually deploying it.

Built for

Agencies
Developers
SaaS teams
Growing businesses

02 / Principles

How we build, every day

Four principles that govern every decision we make — from the architecture of our script to the way we price.

Performance-first

Every byte matters. Our script loads asynchronously, never blocks your critical render path, and ships in 4,092 bytes gzipped — because your visitors’ experience is your conversion rate.

Transparency

No hidden pageview traps. No retroactive billing surprises. Our pricing page shows every number up front. If a limit exists, we tell you before you hit it — not after.

Developer-friendly

Clean REST API, one async tag, and Consent Mode v2 wired correctly without you patching gtag. Consent scripts should fit into your stack, not dictate it. We build with developers as the primary user.

Simplicity

Compliance is already complicated enough. Our dashboard removes the noise — you get exactly what you need to stay compliant, and nothing that gets in the way of actually using it.

03 / Product vision

Why we built this, and what makes it different

The consent management space is dominated by enterprise tools retrofitted for the web, and cheap widgets that treat compliance as an afterthought. Neither serves the people actually building sites.

cmpstack was designed from the ground up for the modern web stack: async-first, edge-compatible, and built with agency workflows in mind from day one.

Our north star

A consent banner should be invisible to users who’ve already chosen, and frictionless for those who haven’t.

We measure success not by opt-in rates, but by how little users have to think about it. Our default templates are designed for clarity, not dark patterns. Honest consent is better consent.

Lightweight by architecture

Our script is not a wrapper around a heavier SDK. It’s purpose-built. 4,092 bytes gzipped. No jQuery, no legacy cruft.

Agency tools that scale

Multi-client dashboards, role-based access and bulk operations — built for the teams managing dozens of clients at once.

Domain-based pricing

You pay per domain, not per million pageviews. Your costs stay flat as your traffic grows. No penalty for doing your job well.

Frameworks supported

GDPR
CCPA / CPRA
DMA
GCMv2

04 / By the numbers

Built to perform at any scale

Every figure below is either measured from a build artefact, enforced by a test, or written into a contract. Nothing here is an estimate.

Total script weight: <4KB; 4,092 bytes gzipped, measured from the shipped build with `gzip -nc dist/cmpstack.js | wc -c`. Loaded async, so it never blocks your page.
Cumulative Layout Shift: <0.10; The banner is a fixed overlay and never pushes your content. A headless-Chrome check measures it on every build and fails above that budget.
Integration required: 1 tag; One script tag, with a two-line Consent Mode default above it. Works with WordPress, Shopify, plain HTML, Next.js, or any stack. No server setup, no OAuth dance.
Native integrations: 13; Tag management, analytics, advertising, CRM, e-commerce and a webhook bus, plus 18 more third-party scripts the tag recognises and holds back until their category is allowed. Both are counted from the catalogue the app validates against, not a longer list for the marketing page.
Uptime SLA (Enterprise): 99.9%; Backed by a contractual SLA for enterprise customers, with dedicated infrastructure and sub-1hr support response.

05 / Team

The people behind CMPStack

Operators, builders, and designers. Remote-first, and deliberately small.

Alireza
CEO
Sets the company vision and steers strategy, growth, and partnerships, alongside the technical direction of the product.
Mike
Front Team Lead
Leads the frontend team, owning UI architecture and delivery quality.
Kai
Back Team Lead
Leads the backend team, owning APIs, data, and infrastructure.
Sean
Front End Developer
Builds responsive, accessible interfaces and brings designs to life.
Ethan
UI/UX Designer
Designs intuitive interfaces and end-to-end user journeys.
Carolin
Operations Manager
Keeps projects, processes, and the team running smoothly day to day.
Mustafa
Media & Social
Drives social media, content, and brand presence across channels.
Tia
Graphic Designer
Creates brand visuals, marketing assets, and product graphics.
Anna
Developer
Rebecca
Developer
Matthew
Developer

We’re growing. If you care deeply about web performance, privacy, and building tools developers actually enjoy — we’d love to hear from you.

Start building with a CMP that respects your stack

7 days with every feature. No credit card required. Go live in under ten minutes.

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7-day demo · No credit card · GDPR-ready out of the box