ALTCHA Description
ALTCHA is a CAPTCHA alternative which uses a proof of work mechanism to protect websites and online services against spam.
ALTCHA uses a mechanism of proof-of-work to protect your website, online services, and APIs from spam and unwanted material. Unlike other solutions ALTCHA is open-source, self-hosted and free. It does not require external services and does not use fingerprinting or cookies.
ALTCHA Alternatives
Take control of your cybersecurity and safeguard your credentials with ASCOMP LeakCheck. This privacy-focused Windows application allows you to verify if your email addresses and passwords have been compromised in historical data leaks, performing all checks securely right from your desktop.
Security is the top priority: LeakCheck uses advanced k-anonymity technology. Your passwords are never transmitted in plain text; instead, encrypted hashes are used to safely query extensive breach databases. If any match is found, the software displays immediate warnings alongside detailed context, including the name, source, and date of the breach.
With LeakCheck, you can proactively defend your online identity, pinpoint vulnerable accounts, and update compromised passwords before unauthorized users can exploit them.
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SuperOps is the AI-native unified platform for modern MSPs and internal IT teams. It replaces the typical four-to-six-tool IT operations stack - PSA, RMM, helpdesk, MDM, asset tracking, network monitoring, patch management and IT documentation - with a single, built-as-one platform on a shared data layer. That architectural choice is what makes the rest of the platform work, particularly its agentic AI. Monica AI, SuperOps' intelligence layer, was designed alongside the platform from day one. It triages tickets, surfaces patch and CVE risks, drafts worklogs, suggests knowledge base articles, and increasingly handles fully autonomous workflows for routine work. SuperOps supports Windows, macOS, Linux, iOS, iPadOS and Android, integrates with the IT and MSP ecosystem (Slack, Teams, Azure AD, Okta, QuickBooks, Xero, Bitdefender, SentinelOne and more), and bundles Splashtop and ISL Online remote access free. Transparent pricing, fast deployment, founder-led product investment.
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TrustCaptcha
TrustCaptcha offers a next-generation website protection service that prevents bots and spam without the friction of traditional CAPTCHA challenges. Operating invisibly in the background, TrustCaptcha activates as users type and completes verification before the form is submitted, reducing bounce rates and improving user engagement. The system relies on a sophisticated trust scoring algorithm paired with a lightweight proof-of-work protocol that increases the cost of spam attacks for bots while remaining imperceptible to genuine visitors. This innovative combination stops automated abuse effectively without disrupting the user journey. Fully customizable, TrustCaptcha lets you tailor language, design, and visibility settings and can even run completely hidden on your site. It complies fully with GDPR requirements, ensuring privacy and data protection. Integration is fast and straightforward, with support for major frameworks and clear documentation. Offering both fixed pricing and pay-per-use models, TrustCaptcha adapts to your needs, delivering reliable and seamless security.
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MTCaptcha
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.
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Pricing
Pricing Starts At:
0
Pricing Information:
Free, with paid plans available.
Free Version:
Yes
Free Trial:
Yes
Company Details
Company:
BAU Software s.r.o.
Year Founded:
2023
Headquarters:
Czechia
Website:
altcha.org
Media
ALTCHA Sentinel
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Product Details
Platforms
Web-Based
On-Premises
Types of Training
Training Docs
Customer Support
Online Support
ALTCHA Features and Options
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