Best CAPTCHA Software with a Free Trial of 2024

MTCaptcha is a privacy-focused and accessible captcha service. It offers an adaptive invisible noCaptcha that ensures easy verification for humans while posing a challenge for bots. MTCaptcha complies with GDPR and WCAG, guaranteeing the protection of your data without any sharing or selling to third parties. The captcha images are colorblind-safe, and the widget is fully VPAT compliant, optimized for screen readers. Supporting multiple languages, MTCaptcha can be fully customized to match any webpage. It also provides audio support, enhancing accessibility for visually impaired users. Trusted by Enterprises, Government, NGOs worldwide, MTCaptcha is available in major languages and functions globally, including in China. Its adaptive Risk Engine effectively detects and responds to threats, maintaining the balance between challenging bots and facilitating human verification.

Friendly Captcha is used by organizations of all sizes, from startups to large corporations, to protect their online services and websites against spam and abuse. Friendly Captcha protects your users' privacy and works automatically so they don't need to do anything. Friendly Captcha is a new way to protect your website and online services against spam and bots. It uses the underlying mechanisms in the blockchain. Friendly Captcha doesn't rely on tracking users or exploitation of personal data. Plus, your users will no longer be burdened with tedious labeling tasks. They don't need to do anything.

CaptchaFox is used by online businesses to protect and safeguard their websites and services from automated bot attacks. CaptchaFox provides protection against account takeovers, credential stuffings, spam, and scalping, while also complying with global privacy legislation, such as GDPR and CCPA. Privacy is protected by minimizing data collection and retention when verifying your users. CaptchaFox uses a variety data signals and dynamic responses challenges to verify the genuineness of visitors, without the use or tracking cookies. The challenges are low friction for humans and difficult for bots. The service is available across multiple languages, and can scale to the incoming traffic via our global infrastructure. Enterprise customers have access to advanced threat insights for complete risk awareness.

Prosopo Procaptcha redefines the user verification process with a unique, decentralized approach that emphasizes privacy and security. It's an innovative solution that offers an alternative to centralized CAPTCHAs, which often compromise privacy. By choosing Prosopo Procaptcha you not only protect your applications from malicious actors and bots, but also maintain the privacy of your users.

The service filters out bots without affecting response time. We use ML models that are trained on datasets with data from many years of experience protecting Yandex's web resources. The datasets are updated regularly. The service generates images independently and does not use pre-made images. This allows it to maintain a human recognition rate of 85% while making it harder for bots to recognise the CAPTCHA. SmartCaptcha runs on the Yandex Cloud, which is compliant with international standards and Russian laws regarding information security. Verify your website without the "I am not a bot" button. Only users who make requests that look suspicious will see the invisible captcha. You can select the level of complexity for the texts that are generated by the service.