
reCAPTCHA
hCaptcha
Cloudflare Turnstile
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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.
30 seconds of code
Snipper.ml
CodeMyUI
Hasty
Ray.so
Snipt
DhiWise
A beautiful cross-platform code snippet manager

Which is more popular?
Based on our record, ALTCHA should be more popular than Codespace. It has been mentioned 4 times since March 2021.
Website, pricing, platforms and company facts side by side.
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Codespace
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| Website | altcha.org | codespace.app |
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| Listed in |
In their own words, as submitted to SaaSHub.

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

Possible disadvantages
An editorial look at what each product does well and who it suits.

No analysis of ALTCHA yet.
Overall verdict
Why this product is good
Recommended for
Walkthroughs and reviews on video.
No ALTCHA videos yet. You could help us improve this page by suggesting one.
Welcome to Codespaces - GitHub Universe 2020
More videos
How often each product is chosen within a category, 0–100% relative to the other.

As answered by people managing ALTCHA and Codespace.
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 ALTCHA and Codespace. For example, how are they different and which one is better?
Recommendations tracked on public social media and blogs since March 2021.

ALTCHA won on the boring things. It is open source, self-hosted and collects nothing, and it ships official libraries in both Go and PHP, the two languages our two layers already speak. So the same protocol runs twice on every store, by... - Source: dev.to / 27 days 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 / 6 months ago
Here's how PoW works for form protection (using the ALTCHA wire format):. - Source: dev.to / 7 months ago
Snip and tot are awesome... the first is free and uses githum gists to sync things, the second I love since it gives me a couple quick blocks to keep things on both mac and ios If you need more I was using CodeSpace to keep all my... Source: over 4 years ago
When comparing ALTCHA and Codespace, you can also consider the following products.

reCAPTCHA is a free security service that protects your websites from spam and abuse.
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JS snippets that you can understand in 30 seconds or less.
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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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Cloudflare's service for any company to replace CAPTCHAs and deliver a better experience to web visitors.
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Handpicked code snippets you can use in your web projects
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