Collaborative comparison engine
| OpenCaptcha | |
|---|---|
| Screenshot |  |
| Distinctive features | Does not require any regsitration |
| Multi-language | No |
| Visual customization | Yes size |
| Audio captcha | No |
| Code sample | PHP |
| Wordpress plugin | No |
| Compatible SSL | No |
| Notable web site using it | |
| Pricing | |
| Free plan | Yes |
| Pricing | |
| Additional | |
| Website | http://opencaptcha.com/ |
| Like |
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