npm
prosopo/captcha
Open-source, frictionless CAPTCHA and bot defense. A privacy-focused alternative to reCAPTCHA and hCaptcha.
Apache-2.0Sep 14, 2026 · metrics 2.10.0
All tags
Catalogue tag
#spam
Every repository in the public record carrying this tag — from its GitHub topics or the keywords its package registries publish. Health is measured under the same versioned methodology as the rest of the record.
16 records
npm
tiagozip/cap
Free, open-source and self-hosted CAPTCHA alternative to reCAPTCHA. Privacy-first and powered by proof-of-work and instrumentation challenges.
Custom licenseSep 15, 2026 · metrics 2.10.0
PyPI
SpamScope/mail-parser
A tool that parses emails by enhancing the Python standard library, extracting all details into a comprehensive object.
Apache-2.0Oct 20, 2026 · metrics 2.10.0
npm
altcha-org/altcha
GDPR, WCAG 2.2 AA, and EAA compliant, self-hosted CAPTCHA alternative with PoW mechanism.
MITSep 8, 2026 · metrics 2.10.0
Packagist
google/recaptcha
PHP client library for reCAPTCHA, a free service to protect your website from spam and abuse.
BSD-3-ClauseSep 18, 2026 · metrics 2.10.0
Packagist
Gregwar/Captcha
PHP Captcha library
MITSep 18, 2026 · metrics 2.10.0
Packagist
spatie/laravel-honeypot
Preventing spam submitted through forms
MITOct 19, 2026 · metrics 2.10.0
Go
fho/rspamd-iscan
daemon for spam-checking IMAP mailboxes with rspamd
EUPL-1.2Sep 19, 2026 · metrics 2.10.0
Go
dominicgisler/imap-spam-cleaner
A tool which can cleanup spam from your imap inbox
GPL-3.0Sep 18, 2026 · metrics 2.10.0
Packagist
omines/antispam-bundle
The Swiss Army Knife of battling form spam in your Symfony application!
MITSep 11, 2026 · metrics 2.10.0
Packagist
YiiRocks/recaptcha
reCAPTCHA bot protection and online fraud prevention
BSD-3-ClauseOct 20, 2026 · metrics 2.10.0
Packagist
CleanTalk/php-antispam
PHP spam protection. CAPTCHA-free alternative
No licenseSep 16, 2026 · metrics 2.10.0
Go
psyb0t/go-spamcheck
Tiny Go client for Postmark's SpamCheck API: submit a raw email, get its SpamAssassin spam score and matched-rule breakdown. No account or API key required.
MITSep 27, 2026 · metrics 2.10.0
Packagist
usarise/turnstile-php
PHP library for Turnstile, is Cloudflare’s smart CAPTCHA alternative. It can be embedded into any website without sending traffic through Cloudflare and works without showing visitors a CAPTCHA.
UnlicenseSep 10, 2026 · metrics 2.10.0
Packagist · npm
bbysaeth/typo3-altcha
TYPO3 form element for spam protection by utilizing the proof-of-work mechanism Altcha.
GPL-2.0Sep 14, 2026 · metrics 2.10.0
NuGet
ixnas/altcha-dotnet
C# implementation of the ALTCHA challenge.
BSD-2-ClauseSep 15, 2026 · metrics 2.10.0