Top 12 Open-Source Alternatives to GeeTest CAPTCHA

GeeTest CAPTCHA

GeeTest protects your websites, mobile Apps and APIs from bot threats.

5.0

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Pricing:

Freemium
Free Trial

Status Page

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Product categories

Ad Blockers Anti-Spam Bots Captcha Cloud VPN Cyber Security Log Management SPAM Protection Security Security & Privacy VPN Web Browsers

Summary

The top open-source alternatives to GeeTest CAPTCHA are mosparo, CleanTalk, and ALTCHA. One of the criteria for ordering this list is the number of mentions that products have on reliable external sources. You can suggest additional sources through the form here.

mosparo Landing Page
1

mosparo

the modern spam protection
Pricing:
- Open Source
#SPAM Protection #Security #Captcha
CleanTalk Landing Page
2

CleanTalk

Spam protection for WordPress, Joomla, Drupal, and any other websites
Pricing:
- Open Source
- Free Trial
- $12.0 / Annually
#SPAM Protection #Security #SPAM 6 social mentions
ALTCHA Landing Page
3

ALTCHA

ALTCHA is a free CAPTCHA alternative that uses a proof-of-work mechanism to protect your website, and online services from spam.
Pricing:
- Open Source
- Free
#Security & Privacy #SPAM Protection #Anti-Spam
CyberSiara Landing Page
4

CyberSiara

Leverage the complexity of the human eye to beat bots in a way no other CAPTCHA can. Keep your privacy. Secure your Site. Enhance your User Experience.
Pricing:
- Open Source
- Freemium
- Free Trial
- £15.0 / Monthly (Tier 1, up to 1,000 queries)
#Cyber Security #Captcha #Bots 1 user reviews
DOOM Captcha Landing Page
5

DOOM Captcha

Captchas don't have to be boring
Pricing:
- Open Source
#User Experience #Proxy Server #Tech 3 social mentions
2captcha Landing Page
6

2captcha

2captcha is captcha bypassing software which offers various exciting tools and simple module that gives the fundamental outlook of the captcha.
Pricing:
- Open Source
- Paid
- $0.5 (per 1000 CAPTCHAs)
#Captcha #Web Application Security #Web Security 42 social mentions
TailScale Landing Page
7

TailScale

Private networks made easy Connect all your devices using WireGuard, without the hassle. Tailscale makes it as easy as installing an app and signing in.
Pricing:
- Open Source
#Security & Privacy #VPN #Cloud VPN 504 social mentions
ZeroTier Landing Page
8

ZeroTier

Extremely simple P2P Encrypted VPN
Pricing:
- Open Source
#Security & Privacy #VPN #Cloud VPN 35 social mentions
Pi-hole Landing Page
9

Pi-hole

Pi-hole is a multi-platform, network-wide ad blocker.
Pricing:
- Open Source
#Security & Privacy #Ad Blockers #Threat Detection And Prevention 1185 social mentions
Tor Browser Landing Page
10

Tor Browser

Tor is free software for enabling anonymous communication.
Pricing:
- Open Source
#Web Browsers #VPN #Security 9 social mentions
Wireshark Landing Page
11

Wireshark

Wireshark is a network protocol analyzer for Unix and Windows. It lets you capture and interactively browse the traffic running on a computer network.
Pricing:
- Open Source
#Monitoring Tools #Log Management #Performance Monitoring 11 social mentions
Standard Notes Landing Page
12

Standard Notes

A safe place for your notes, thoughts, and life's work
Pricing:
- Open Source
#Notes #Personal Notes #Private Journal 128 social mentions