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Open Source CAPTCHA & Bot Protection Tools using Rust

A curated collection of the best open source tools for distinguishing humans from bots (CAPTCHA) and preventing spam. using Rust.

Cap

Privacy-first CAPTCHA alternative with proof-of-work

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6,233
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428
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4 days ago

Lightweight open-source CAPTCHA solution using SHA-256 proof-of-work. 250x smaller than hCaptcha, fully customizable, and privacy-focused with zero telemetry.

Open Source Alternative to:

reCAPTCHA

mCaptcha

Privacy-first proof-of-work CAPTCHA without user friction

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2,445
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88
Last commit
7 months ago

Privacy-focused proof-of-work CAPTCHA system that silently protects websites without tracking users or requiring image solving. Drop-in replacement for reCAPTCHA.

Open Source Alternative to:

reCAPTCHA

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Stars
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Stars
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Stars
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Stars
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Stars
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