
Basin
Vercel
Formtorch
nForms.eu
Formdall.de
Formboost.app
Form2Lead
Contact forms for static websites without PHP or Backend server

reCAPTCHA
hCaptcha
Cloudflare Turnstile
Akismet
Private Captcha
mosparo
Cap Captcha
ALTCHA is a free CAPTCHA alternative that uses a proof-of-work mechanism to protect your website, and online services from spam.

Which is more popular?
Based on our record, Web3Forms should be more popular than ALTCHA. It has been mentioned 18 times since March 2021.
Website, pricing, platforms and company facts side by side.
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| Website | web3forms.com | altcha.org |
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In their own words, as submitted to SaaSHub.


No description of Web3Forms yet.
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...
What each product offers, as listed by its team.


Possible disadvantages
Walkthroughs and reviews on video.
Web3forms - cheap, light and fast contact form for your website
No ALTCHA videos yet. You could help us improve this page by suggesting one.
How often each product is chosen within a category, 0–100% relative to the other.


As answered by people managing Web3Forms and ALTCHA.
ALTCHA's answer:
What makes ALTCHA unique is that it 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. Unlike other captcha solutions, ALTCHA does not require users to solve puzzles or captchas and uses a proof-of-work mechanism instead.
ALTCHA's answer:
Here are some key reasons why a person should choose ALTCHA over its competitors:
So in summary, ALTCHA's privacy compliance, open design, accessibility, machine compatibility and modern approach give it clear advantages over competing captcha solutions.
ALTCHA's answer:
JavaScript and Svelte.
ALTCHA's answer:
Our primary audience for ALTCHA Forms includes enterprises, medium and small businesses, non-profits, and individuals who need a reliable, secure, and compliant solution for data collection and management. Whether you're a large corporation dealing with extensive regulatory requirements, a small business looking to protect customer and employee data, a non-profit organization managing sensitive information, or an individual seeking robust data security, ALTCHA Forms provides the tools and features necessary to meet your needs. With a focus on compliance, user-friendly design, and advanced security measures, our platform is tailored to support diverse users in navigating complex regulatory landscapes and ensuring data protection.
Share your experience with using Web3Forms and ALTCHA. For example, how are they different and which one is better?
Recommendations tracked on public social media and blogs since March 2021.


There are plenty: Formspree, Basin, Formcarry, Web3Forms, Netlify Forms if you're on Netlify. I build CatchForm, so that's what the code below uses — the shape is the same whichever you pick. - Source: dev.to / 29 days ago
I've been using http://web3forms.com for a while now, works well, but for privacy reasons and GDPR compliance I'm thinking to self-host my own PHP file that simply calls Amazon SES. - Source: Hacker News / about 2 years ago
Don't think anyone has mentioned https://web3forms.com/ which normally means there's a good reason not to... Anyone advise against it? - Source: Hacker News / over 2 years ago
The captcha on orkestr is Altcha. Self-hosted, no third-party JS, no Google, no behavioral tracking. Users don't see a puzzle. There's a single checkbox and a quiet "verifying..." while the browser does some math. About a second, total. - Source: dev.to / 5 months ago
Here's how PoW works for form protection (using the ALTCHA wire format):. - Source: dev.to / 6 months ago
Go based, similar to JS based ALTCHA https://altcha.org/ discussed at https://news.ycombinator.com/item?id=43971068. - Source: Hacker News / 10 months ago
When comparing Web3Forms and ALTCHA, you can also consider the following products.

Collect form submissions, filter spam, and automate workflows — with AI landing pages from Basin Sites.
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reCAPTCHA is a free security service that protects your websites from spam and abuse.
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Vercel is the platform for frontend developers, providing the speed and reliability innovators need to create at the moment of inspiration.
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Do you use a captcha to keep out bots? hCaptcha is a drop-in replacement for reCAPTCHA that earns website owners money and helps companies get their data labeled.
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Formtorch is a modern form backend API for HTML, React, Next.js, Astro, and more. Capture form submissions, prevent spam, send webhooks, and automate workflows without building a backend.
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Cloudflare's service for any company to replace CAPTCHAs and deliver a better experience to web visitors.
Compare Cloudflare Turnstile to Web3Forms or ALTCHA: