Myra EU CAPTCHA automatically protects web forms, login pages, and other applications in the background– without image puzzles, checkboxes, or personal data collection. The GDPR-compliant solution uses more than 100 billion daily CDN signals for highly accurate bot detection and is particularly suitable for regulated European organizations that value digital sovereignty, data sovereignty, and a seamless user experience.

Thanks to native integration into Myra's sovereign security tech stack, EU CAPTCHA can be seamlessly expanded with additional security and performance solutions (including Web Application Firewall (WAF), DDoS Protection, Bot Management, and a secure Content Delivery Network (CDN)).

What sets this captcha service apart

Use cases

• Protection of web portals, login pages, and transaction forms for KRITIS operators, government agencies, banks, and insurance companies with high requirements for security, GDPR compliance, and digital sovereignty – natively integrable into a sovereign security tech stack with WAF, bot management, DDoS protection, and CDN.

Special features:

• Captcha service without user interaction, cookies, or tracking, accessible user experience.

• Real-time analysis of over 100 billion CDN signals per day for reliable separation of humans and bots.

• Purpose-built, minimized data processing, SIEM connection, and easy implementation with a free trial period.

• GDPR-compliant, geo-redundant infrastructure “Made in Germany” with a focus on regulated industries and KRITIS.

• Comprehensively certified: ISO 27001 based on BSI IT-Grundschutz, BSI C5 Type 2, PCI-DSS, KRITIS operator according to § 8a (3) BSIG.

• Native integration into sovereign security tech stack with WAF, bot management, DDoS protection, and CDN.

• SLA support for enterprise operations

Origin/compliance:

• EU-sovereign solution: Development, operation, and hosting in Germany, no dependencies on third-party providers.

• GDPR, NIS 2, and DORA-compliant alignment for meeting regulatory requirements and use in the KRITIS environment.

• Not subject to any US jurisdiction (CLOUD Act/FISA 702).

Google reCAPTCHA protects websites from spam and automated attacks by analyzing user behavior and, depending on the version, using checkbox interactions, image puzzles, or invisible score calculations. The solution is widely used worldwide and is often employed in standard web projects, SaaS platforms, and large consumer websites.

What sets this captcha provider apart

Use case

• Protection of forms and registration processes on public consumer websites and SaaS platforms with a global user base, where easy integration and broad market penetration are priorities.

Special features

• Various modes (v2 checkbox/image puzzles, v3 score-based) for flexible adaptation to risk and UX requirements.

• Bot detection based on extensive user signals and global database.

• From April 2026, processing within the scope of order processing with purpose limitation for bot defense.

Origin/compliance:

• Legal domicile in the US (with EU branches).

• Subject to CLOUD Act / FISA 702 (third country risk).

hCaptcha offers a captcha service that relies on classic image puzzles and tasks to distinguish between humans and bots, positioning itself as an alternative to Google reCAPTCHA. The service is often used by websites that seek a combination of bot protection, low operating costs, and partial monetization of captcha tasks (legacy).

What sets this captcha provider apart

Use case

• Securing forms and login pages on content and e-commerce websites where image-based challenges are accepted and low operating costs are a priority.

Special features

• Image- and task-based challenges with configurable difficulty and customization options.

• Data minimization compared to traditional approaches, separation and deletion of personal data according to provider information.

• Flexible pricing models including free use and enterprise options.

Origin/compliance:

• Legal domicile in the US (with EU branches).

• Uses HTTP cookies.

• Subject to CLOUD Act / FISA 702 (third-country risk).

Cloudflare Turnstile is a user-friendly captcha alternative that performs checks largely in the background and does not use traditional image puzzles. The solution can be easily integrated into websites, is free to use in many scenarios, and is particularly suitable for operators who are already integrated into the CDN Cloudflare ecosystem.

What sets this captcha provider apart

Use case

• Protection of forms and login flows on globally oriented websites within the Cloudflare ecosystem where invisible checks, high scalability, and low latency are required.

Special features

• Invisible or minimally visible challenges based on browser signals, without image puzzles.

• Free tier, easy integration.

• No use of data for advertising tracking, focus on security-related evaluation.

Origin/compliance:

• Legal domicile in the US (with EU branches).

• Uses HTTP cookies.

• Subject to CLOUD Act / FISA 702 (third-country risk).

FriendlyCaptcha is an EU-based CAPTCHA service with a strong focus on data protection, accessibility, and invisible bot detection. The solution protects websites and apps from bots and spam by solving cryptographic proof-of-work challenges in the background without forcing users to solve puzzles.

What sets this Captcha provider apart

Use Case:

• Protection of forms and registration processes for privacy-focused companies and government agencies in the EU, where cookie-free operation, compliance, accessibility, and the exclusion of third-party access from the US are required.

Key features:

• Invisible, device-side proof-of-work challenges without image or audio puzzles, high accessibility (WCAG compliance).

• Minimized data collection, no cookies, no persistent browser storage, no profiling or marketing use.

• Dedicated EU endpoints, easy integration, and comprehensive documentation on GDPR-compliant implementation.

Origin/Compliance:

• German provider with data storage in the EU

• GDPR-compliant

• Not directly subject to US jurisdiction regarding the CLOUD Act / FISA 702

Procaptcha is a CAPTCHA service that positions itself as a privacy-friendly alternative to US-based solutions and aims to provide European website operators with legally compliant protection against spam and bots. The focus is on GDPR compliance, transparent data processing, and easy integration into common web forms.

What sets this Captcha provider apart

Use Case:

• Used as a cookie-free, GDPR-compliant drop-in alternative to reCAPTCHA and hCaptcha for CMS-based websites, WordPress installations, and developer projects where minimal data collection and quick migration are priorities.

Key features:

• Captcha protection with a focus on temporary, purpose-limited data storage and the avoidance of unnecessary personal data.

• Integration without extensive configuration steps, designed for quick implementation.

• Support for common CMS and form environments.

Origin/Compliance:

• UK-based provider with data storage in the EU

• GDPR-compliant

• Not directly subject to US jurisdiction regarding the CLOUD Act / FISA 702

Captcha.eu offers a CAPTCHA service developed specifically for Europe that blocks bots and spam while ensuring GDPR-compliant message and form security. The solution is designed for companies and institutions that prioritize EU hosting, transparency, and low integration barriers.

What sets this CAPTCHA provider apart

Use Case:

• Protection of contact forms, newsletter sign-ups, and simple web workflows for EU companies and institutions that prefer an Austrian Privacy-by-Design provider without the use of cookies and without the risk of data transfer to the US.

Key Features:

• Privacy-by-Design approach that limits data collection to what is technically necessary.

• Focus on spam and bot defense without marketing tracking; transparent privacy notices.

• Flexible integration into common web forms and CMS environments.

Origin/Compliance:

• Austrian provider with data storage in the EU

• GDPR-compliant

• Not directly subject to US jurisdiction regarding the CLOUD Act / FISA 702

CaptchaFox is a CAPTCHA solution developed in Germany that protects websites and applications from bots and spam while placing a strong emphasis on user-friendliness and data protection. The service combines advanced bot detection with frustration-free tasks and is aimed at companies seeking a European, GDPR-compliant alternative to reCAPTCHA.

What sets this Captcha provider apart

Use Case:

• Protection of forms, login, and checkout processes for companies seeking a German, cookie-free, and GDPR-compliant alternative to reCAPTCHA with seamless API compatibility and broad CMS support.

Key features:

• Task-based CAPTCHA challenges with a focus on user-friendly interaction.

• No cookies or storage of personal data, transparent pricing and integration models.

• API compatibility with reCAPTCHA and numerous integrations (e.g., for common CMS and frameworks).​

Origin/Compliance:

• German provider with data storage in the EU

• GDPR-compliant

• Not directly subject to US jurisdiction regarding the CLOUD Act / FISA 702

Private Captcha is designed for organizations that want to combine Captcha functionality with a high degree of control over data and infrastructure, typically through self-hosted or isolated environments. The focus is on defending against spam and bot attacks without transferring data to external third-party providers.

What sets this Captcha provider apart

Use Case:

• Securing web forms in organizations with strict data protection and governance requirements that need a fully self-hosted, EU-based Captcha service without dependencies on external third-party providers.

Key Features:

• Ability to self-host Captcha services, with full control over configuration, logging, and data flows.

• Privacy-by-design with limited, anonymized inputs and optional adaptation to internal policies.

• Flexible API usage for adaptation to individual integration scenarios.

Origin/Compliance:

• Estonian provider with data storage in the EU

• GDPR-compliant

• Not directly subject to US jurisdiction regarding the CLOUD Act / FISA 702

ALTCHA is a privacy-focused Captcha platform designed for self-hosting that combines spam protection with a proof-of-work approach. The system was specifically developed to comply with European data protection standards and operates without tracking, cookies, or invasive challenges.​

What sets this Captcha provider apart

Use Case:

• Used as an open-source and self-hosted Proof-of-Work Captcha for privacy-conscious developers, system administrators, and public agencies that require cookie- and tracking-free bot protection with full data control and WCAG 2.2 AA compliance.

Key features:

• Proof-of-work-based challenges that run in the background, as well as adaptive code challenges.

• No use of cookies, no tracking, no storage of IP addresses, and no outsourcing to third parties.

• Open-source-based approach with integrations into various platforms and detailed documentation.

Origin/Compliance:

• Czech provider with data storage in the EU

• GDPR-compliant (depending on the chosen hosting approach)

• Not directly subject to US jurisdiction regarding the CLOUD Act / FISA 702