Consent Management Platforms Compared (2026)

Choosing the right consent management platform is one of the most consequential technical decisions an organisation makes for privacy compliance. A poorly configured CMP exposes you to enforcement action. A well-chosen one turns cookie consent from a legal headache into a controlled, measurable process.

This comparison evaluates six consent management platforms that dominate the European market in 2026: Cookiebot (Usercentrics), CookieYes, Osano, OneTrust CMP, Didomi, and iubenda. The evaluation criteria reflect what actually matters in practice: regulatory compliance, technical integration, and cost.

According to a 2025 IAPP survey, 78% of organisations operating in Europe now use a dedicated consent management platform, up from 61% in 2023. The shift reflects both stricter enforcement and the technical requirements introduced by Google Consent Mode v2 and the IAB Transparency and Consent Framework 2.2.

What Should You Evaluate in a Consent Management Platform?

Before comparing specific tools, it helps to define what separates a competent consent management platform from a checkbox exercise. The criteria below drive this comparison.

Regulatory compliance depth

A CMP must enforce valid consent under the GDPR and the ePrivacy Directive. That means granular, purpose-level consent choices, no pre-ticked boxes, and proper record-keeping. For a detailed breakdown of what constitutes valid consent, see our guide to GDPR consent examples.

Technical integration standards

Two technical standards now define the CMP landscape. TCF 2.2 (IAB Europe’s Transparency and Consent Framework) is required by most programmatic advertising partners. Google Consent Mode v2, mandatory since March 2024 for any site using Google Ads or Google Analytics, requires the CMP to signal consent states to Google tags. A consent management platform that lacks either of these is functionally incomplete for most European websites.

Geographic customisation and consent rate optimisation

Organisations operating across multiple jurisdictions need different consent experiences per country. A visitor from Germany requires a different banner configuration than one from the United States. Beyond geography, the ability to A/B test banner designs, button placement, and wording directly affects consent rates, which in turn affect analytics accuracy and advertising revenue.

The Six Platforms Compared

The table below summarises the core capabilities of each consent management platform evaluated.

Feature	Cookiebot (Usercentrics)	CookieYes	Osano	OneTrust CMP	Didomi	iubenda
GDPR/ePrivacy	Full	Full	Full	Full	Full	Full
TCF 2.2	Yes	Yes	No	Yes	Yes	Yes
Google Consent Mode v2	Yes	Yes	Yes	Yes	Yes	Yes
Geographic rules	Yes	Yes	Limited	Yes	Yes	Yes
A/B testing	Yes (paid)	No	No	Yes	Yes	No
Free tier	1 domain, 50 subpages	100 pages	Limited trial	No	No	Free plan (limited)
Starting price	EUR 12/mo	EUR 9/mo	USD 199/mo	Custom (enterprise)	Custom (mid-market)	EUR 29/yr
Best for	SMBs to mid-market	Budget-conscious SMBs	US-focused orgs	Large enterprises	Mid-market, publishers	Micro-businesses

Cookiebot (Usercentrics)

Cookiebot, now part of the Usercentrics group following their 2022 merger, remains the most widely deployed consent management platform in Europe. The European Commission’s own websites have used Cookiebot, which lends it a degree of institutional credibility.

Strengths: automatic cookie scanning and categorisation, TCF 2.2 certified, robust geographic rule sets, and a mature Google Consent Mode v2 integration. The platform handles multi-language banners well, covering over 40 languages natively. Consent rate A/B testing is available on paid plans, allowing organisations to optimise banner performance without compromising compliance.

Weaknesses: the free tier is restrictive (one domain, 50 subpages). Pricing scales with page volume, which can become expensive for content-heavy sites. Customisation of banner design requires CSS overrides on lower-tier plans.

Best for: SMBs and mid-market companies in Europe that need a reliable, regulation-first consent management platform without enterprise overhead.

CookieYes

CookieYes has grown rapidly by targeting small businesses that need GDPR-compliant consent management at a low price point. The platform reports over 1.5 million active websites as of early 2026.

Strengths: competitive pricing starting at EUR 9/month, Google Consent Mode v2 support, TCF 2.2 certification, and a generous free tier covering up to 100 pages. Setup is straightforward, typically requiring a single script tag. The banner builder is intuitive and requires no coding knowledge.

Weaknesses: no A/B testing capability, which limits consent rate optimisation. Geographic customisation exists but is less granular than Cookiebot or Didomi. Reporting is basic compared to enterprise-grade platforms. Cookie scanning accuracy occasionally requires manual correction.

Best for: small businesses and startups that need compliant cookie consent on a budget. Not ideal for organisations with complex multi-country requirements.

Osano

Osano takes a broader approach to consent management, positioning itself as a data privacy platform rather than a pure CMP. The company is US-headquartered and reflects that perspective.

Strengths: clean interface, strong documentation, and good support for US state privacy laws (CCPA/CPRA, CPA, VCDPA). Google Consent Mode v2 support was added in 2024. The platform includes vendor risk monitoring, which scans third-party scripts for privacy risks.

Weaknesses: no TCF 2.2 support, which is a significant gap for any organisation running programmatic advertising in Europe. Geographic customisation is limited compared to European-focused competitors. Pricing starts at USD 199/month, making it one of the more expensive options for what it delivers in a European context.

Best for: US-focused organisations that need multi-state compliance and are less dependent on European programmatic advertising. Not the strongest choice for EU-primary operations.

OneTrust CMP

OneTrust is the dominant enterprise consent management platform. According to BuiltWith data, OneTrust is deployed on approximately 30% of the top 10,000 websites globally, making it the most visible CMP at the enterprise tier.

Strengths: comprehensive feature set including TCF 2.2, Google Consent Mode v2, granular geographic rules (down to sub-national level), advanced A/B testing, and deep integrations with tag management systems. The platform supports complex consent orchestration across web, mobile, and connected TV. Regulatory update automation is a genuine differentiator: when rules change, OneTrust pushes configuration updates.

Weaknesses: pricing is custom and enterprise-oriented, typically starting in the thousands per month. Implementation complexity is high and often requires dedicated privacy engineering resources or a professional services engagement. Overkill for organisations with fewer than five websites.

Best for: large enterprises and multinational organisations with complex consent requirements across dozens of markets. Particularly strong for organisations in regulated industries.

Didomi

Didomi has carved a distinct position as the consent management platform of choice for European publishers and mid-market companies that care about consent rate performance. The company reports that its A/B testing and UX optimisation features increase consent rates by 15-25% on average compared to default configurations.

Strengths: TCF 2.2 certified, strong Google Consent Mode v2 integration, excellent geographic customisation, and best-in-class consent analytics. The A/B testing engine allows granular experimentation with button colours, text, layout, and timing. The preference centre is highly customisable. Didomi also offers a native integration for consent collection across mobile apps and CTV.

Weaknesses: no free tier and custom pricing, which can be opaque. The platform requires more configuration effort upfront than simpler tools like CookieYes. Documentation, while thorough, assumes a higher level of technical literacy.

Best for: publishers, media companies, and mid-market organisations that treat consent rate as a business metric. Strong choice for organisations that depend on advertising revenue and need to maximise opt-in rates while remaining compliant.

iubenda

iubenda bundles cookie consent with privacy policy and terms generation, making it popular among micro-businesses and freelancers. Over 100,000 organisations across 100 countries use the platform as of 2026.

Strengths: lowest entry price in this comparison (EUR 29/year for the base plan), TCF 2.2 support, Google Consent Mode v2 compatibility, and an integrated privacy policy generator. The all-in-one approach reduces the number of vendors a small organisation needs. Setup is simple and well-documented.

Weaknesses: no A/B testing. Banner customisation is limited on lower tiers. The platform bundles many features at higher price points, so actual cost can escalate quickly once you need geographic rules or advanced cookie scanning. Support responsiveness has been a recurring complaint in user reviews.

Best for: freelancers, solo founders, and micro-businesses that want consent management bundled with basic legal document generation at the lowest possible cost.

How Does Google Consent Mode v2 Affect Your Choice?

Since March 2024, Google has required all sites using Google advertising or measurement products to implement Consent Mode v2. Without it, remarketing audiences stop building and conversion measurement degrades significantly. Google’s own data indicates that advertisers using Consent Mode v2 recover up to 65% of ad-click-to-conversion journeys that would otherwise be lost to consent rejection.

All six platforms in this comparison now support Consent Mode v2. The differences lie in implementation quality. Cookiebot, OneTrust, and Didomi offer native, tag-level integrations that require no additional configuration beyond enabling the feature. CookieYes and iubenda require minor additional setup steps. Osano’s implementation is functional but was added later and has less documentation.

For a full walkthrough on cookie consent technical requirements, see our cookie consent compliance guide.

Does TCF 2.2 Support Matter?

If your website runs programmatic advertising through demand-side platforms or supply-side platforms that operate in Europe, TCF 2.2 support is not optional. The IAB Europe framework is the standard mechanism through which consent signals propagate through the advertising supply chain. Without TCF 2.2, many SSPs will simply stop bidding on your inventory.

Osano is the only platform in this comparison that does not support TCF 2.2. For organisations where programmatic advertising is a revenue source, this is a disqualifying gap. For organisations that do not run programmatic ads, the absence of TCF 2.2 is irrelevant.

Our cookie banner compliance guide covers the intersection of banner design rules and TCF requirements in detail.

What About Consent Rates and Revenue Impact?

Consent rates directly affect the bottom line. According to Didomi’s 2025 benchmark report, the average consent rate across European websites is 72%, but the gap between the 25th percentile (54%) and the 75th percentile (87%) is enormous. That 33-point gap translates directly into analytics accuracy, advertising revenue, and remarketing audience size.

Only Cookiebot (on paid plans), OneTrust, and Didomi offer built-in A/B testing of consent banners. For organisations where consent rates drive measurable revenue outcomes, this feature alone can justify a higher-priced consent management platform. A 10% improvement in consent rate on a site generating EUR 500,000 in annual ad revenue translates to roughly EUR 50,000 in recovered revenue.

Where Does a CMP Fit in Your Broader Compliance Programme?

A consent management platform handles one specific slice of GDPR compliance: cookie consent and online tracking. It does not handle data mapping, processing records, breach notification workflows, data subject access requests, or vendor management. Organisations sometimes overestimate what a CMP covers and underestimate the remaining compliance surface area. For a complete picture of what GDPR compliance entails, see our GDPR compliance checklist.

The gap between CMP coverage and full GDPR compliance is where platforms like Legiscope operate. Legiscope handles the broader compliance programme, including processing records, legal basis documentation, DPIA workflows, and ongoing monitoring, while your CMP manages the consent-specific layer. The two work in parallel, not as substitutes.

For a broader comparison of tools that address GDPR compliance beyond consent, see our guide to GDPR compliance software.

FAQ

What is a consent management platform?

A consent management platform (CMP) is a tool that collects, stores, and signals user consent for cookies and online tracking technologies. It presents the consent banner, records choices, and communicates consent status to third-party scripts such as analytics and advertising tags.

Is a consent management platform required by law?

The GDPR and ePrivacy Directive do not mandate a specific tool, but they require valid, documented consent for non-essential cookies. In practice, meeting these requirements at scale without a consent management platform is impractical for any organisation with more than a basic website.

How much does a consent management platform cost?

Pricing ranges from free (Cookiebot, CookieYes limited tiers) to several thousand euros per month (OneTrust enterprise). Most SMBs will spend between EUR 10 and EUR 50 per month for a compliant solution. The right budget depends on your site count, traffic volume, and whether you need features like A/B testing or TCF 2.2.

Can I use a consent management platform for non-EU visitors?

Yes. Most platforms allow geographic customisation, showing different banners or no banner at all based on visitor location. This is important for user experience: visitors from jurisdictions without cookie consent requirements should not be forced through a consent flow designed for European regulations.

Which consent management platform is best for a small business?

CookieYes and iubenda offer the best value for small businesses. CookieYes provides a generous free tier and low starting price with full GDPR compliance. iubenda bundles consent management with privacy policy generation, reducing vendor count. For small businesses that also run programmatic advertising, Cookiebot’s entry-level paid plan provides the best balance of price and feature completeness.

Does switching consent management platforms lose historical consent records?

Yes, in most cases. Consent records are stored by the CMP provider, and migrating them between platforms is rarely straightforward. Plan any CMP switch carefully, and consult the receiving platform’s migration documentation. Some platforms, including OneTrust and Didomi, offer migration support as part of onboarding.