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
#antispam
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.
10 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
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
npm
altcha-org/altcha-lib
A JavaScript library for creating and verifying ALTCHA challenges.
MITSep 13, 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
Go
myguard-labs/mailstrix
Mailstrix is the owl that finds malware hiding in your mail. It takes hostile attachments apart — unwrapping OLE2/OOXML, VBA, RTF objects, PDFs, archives and nested carriers — until YARA detection rules can finally see the dangerous bits. It runs out-of-process behind Rspamd (async HTTP), SpamAssassin, an ICAP server, Dovecot Sieve, or standalone
MITOct 18, 2026 · metrics 2.10.0
Go
capcom6/censor-tg-bot
A flexible, plugin-based antispam bot for Telegram, written in Go.
Apache-2.0Sep 19, 2026 · metrics 2.10.0
Go
rezmoss/go-is-disposable-email
A high-performance Go package for detecting disposable/temporary email addresses
MITSep 24, 2026 · metrics 2.10.0
Packagist
CleanTalk/php-antispam
PHP spam protection. CAPTCHA-free alternative
No licenseSep 16, 2026 · metrics 2.10.0
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The-McGrail-Foundation/MIMEDefang
MIMEDefang is an e-mail filtering tool that works with the Sendmail “Milter” library. MIMEDefang lets you express your filtering policies in Perl rather than C, making it quick and easy to filter or manipulate your mail.
GPL-2.0Sep 13, 2026 · metrics 2.10.0