reCAPTCHA Alternatives
reCAPTCHA
reCAPTCHA is a free CAPTCHA service that helps to digitize books, newspapers and old time radio shows.
About 200 million CAPTCHAs are solved by humans around the world every day. In each case, roughly ten seconds of human time are being spent. Individually, that's not a lot of time, but in aggregate these little puzzles consume more than 150,000 hours of work each day. What if we could make positive use of this human effort? reCAPTCHA does exactly that by channeling the effort spent solving CAPTCHAs online into "reading" books.
To archive human knowledge and to make information more accessible to the world, multiple projects are currently digitizing physical books that were written before the computer age. The book pages are being photographically scanned, and then transformed into text using "Optical Character Recognition" (OCR). The transformation into text is useful because scanning a book produces images, which are difficult to store on small devices, expensive to download, and cannot be searched. The problem is that OCR is not perfect.
Best reCAPTCHA Alternatives for Web
If you want similar software to reCAPTCHA, we have a list for that. Are there reCAPTCHA alternatives out there? Let's find out.
hCaptcha
FreemiumWebhCaptcha allows websites to make money serving this demand while blocking bots and other forms of abuse.
Features:
- Bot detection
- GDPR compliant
- Web-Based
Mollom
FreemiumWebMollom is a freemium web service to get rid of spam, unwanted content and fake users on your Drupal, Wordpress and Joomla site or blog.
Features:
- Captcha Recognition
- Content analysis
- Software as a Service
- WordPress
Sblam!
FreeOpen SourceLinuxWebOpen-source implementation of server-side spam filtering of blog comments and forum posts. It's available as a free web service. It's open source, so you can...
Features:
- Php
- WordPress
Solve Media's CAPTCHA TYPE-IN™
CommercialWebSolve Media's CAPTCHA TYPE-IN ads are an easy plug-in solution that saves your users time while making your site more secure and more profitable. Instead of...
FeedCaptcha
FreemiumWebSoftware as a Service (SaaS)FeedCaptcha is a new captcha system, easy to integrate and with meaning for your product. You create a set of questions that users answers in order to pass the captcha...
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