Lightweight, modern open-source CAPTCHA alternative designed using SHA-256 proof-of-work and JS instrumentation
Cost / License
- Free
- Open Source
Application type
Platforms
- Self-Hosted
- Docker
Portugal
EU



Apps similar to Sblam! include Cap Captcha, which is free and open source. Other options are reCAPTCHA, IronWall, Antispam Bee and hCaptcha. You're spoiled for choice with Anti-Spam Tools like Sblam!: we list more than 25 alternatives for the web, self-hosting, Mac, Windows and Linux.
Lightweight, modern open-source CAPTCHA alternative designed using SHA-256 proof-of-work and JS instrumentation



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