Secure your online content with ALTCHA.
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Overview
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ALTCHA uses a proof-of-work mechanism to protect your website, APIs, and online services from spam and unwanted content. Unlike other solutions, ALTCHA is free, open-source, and self-hosted, without external services, does not use cookies nor fingerprinting, does not track users, and is fully compliant with GDPR.
Free Trial available
Individuals
Freelancers
Large Enterprises
Medium Business
Small Business
SaaS/Web/Cloud
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ALTCHA was reviewed internally using user feedback, in-house testing, and market research to assess its performance, reliability, and user experience. Learn how we review products and our evaluation process.
Free Trial
Yes, It's available
Pricing Model
Free trial
Paid Plans (Subscription /Open-Source )
Screenshots of the ALTCHA Pricing Page
Disclaimer: Pricing information for ALTCHA is provided by the software vendor or sourced from publicly accessible materials. Final cost negotiations and purchasing must be handled directly with the seller. For the latest information on pricing, visit website. Pricing information was last updated on .
Customer Service
Online
Location
Not available
Stuck on something? We're here to help with all the questions and answers in one place.
Yes, ALTCHA provides API.
No, ALTCHA doesn't provide mobile app.
ALTCHA is located in Not available
ALTCHA offers Free Trial, Subscription, Open-Source pricing models
The starting price is not disclosed by ALTCHA. You can visit ALTCHA pricing page to get the latest pricing.
This software is researched and edited by
Rajat Gupta is the founder of Spotsaas, where he reviews and compares software tools that help businesses work smarter. Over the past two years, he has analyzed thousands of products across CRM, HR, AI, and finance — combining real-world research with a strong foundation in commerce and the CFA program. He's especially curious about AI, automation, and the future of work tech. Outside of SpotSaaS, you'll find him on a badminton court or tracking the stock market.
Researched by Rajat Gupta
