Alternatives and similar repositories for captcha:

Users that are interested in captcha are comparing it to the libraries listed below

• foxcpp / wirebox
  Dynamic WireGuard tunnel configuration.
  ☆15Updated last year
• ciehanski / onionbox
  Send and receive files securely through Tor.
  ☆42Updated last year
• gesquive / templr
  An iptables firewall manager
  ☆21Updated 6 years ago
• urlund / nginx-mail-auth-http
  A Go HTTP authentication server for ngx_mail_auth_http_module.
  ☆6Updated 6 years ago
• etix / goscrape
  Go library to scrape torrents on any UDP tracker
  ☆19Updated 6 years ago
• shuque / dane
  Go library for DANE authentication
  ☆21Updated 5 months ago
• jsimonetti / sniqueue
  Using nfqueue to accept or drop flows destined for SNI domainnames
  ☆21Updated this week
• majestrate / fedproxy
  tor/i2p/lokinet socks proxy router
  ☆29Updated 10 months ago
• berty / go-libtor
  Self-contained Tor from Go
  ☆34Updated 2 years ago
• Snawoot / httptrap
  Web-server which produces infinite chunked-encoded responses to slowdown malicious clients
  ☆21Updated 3 years ago
• txthinking / mailx
  A lightweight SMTP mail library
  ☆29Updated last year
• mehrdadrad / ping
  Golang native ICMP-based ping IPv4 and IPv6 library
  ☆22Updated 4 years ago
• mback2k / smtp-dkim-signer
  SMTP-proxy that DKIM-signs e-mails before submission to an upstream SMTP-server.
  ☆37Updated last year
• saljam / proxy
  A simple web proxy written in Go. Used primarily to mess with my neighbours.
  ☆15Updated 11 years ago
• FlippingBinary / lets-encrypt-tlsa
  Let's Encrypt encourages the use of certbot to automate certificate renewal, but that tool generates a new CSR every time. That makes DAN…
  ☆12Updated last year
• albertito / spf
  SPF (Sender Policy Framework) implementation in Go [mirror]
  ☆21Updated last year
• emersion / go-openpgp-hkp
  A Go library for OpenPGP HTTP Keyserver Protocol (HKP)
  ☆12Updated last year
• kitschysynq / darity
  A wafer-thin, pure Go interface to KVM
  ☆10Updated 9 years ago
• innix / shrek
  A vanity .onion address generator written in Go.
  ☆16Updated 2 years ago
• tylerchr / pwnedpass
  Package pwnedpass is a Go package for querying a local instance of Troy Hunt's Pwned Passwords database.
  ☆15Updated last year
• ns1labs / doq-proxy
  DNS-over-QUIC to UDP Proxy
  ☆73Updated 2 months ago
• emersion / klaes
  An OpenPGP keyserver
  ☆18Updated 4 years ago
• xaionaro-go / secureio
  An easy-to-use XChaCha20-encryption wrapper for io.ReadWriteCloser (even lossy UDP) using ECDH key exchange algorithm, ED25519 signatures…
  ☆34Updated 4 years ago
• mostfunkyduck / kp
  reimplementation of the kpcli utility in go with added features.
  ☆11Updated last month
• jedisct1 / whatsmyresolver
  A tiny DNS server that returns the client (resolver) IP
  ☆27Updated last month
• cretz / tor-static
  Helpers to build Tor statically
  ☆87Updated 7 months ago
• emersion / go-pgpmail
  PGP-encrypted email library for Go
  ☆58Updated 2 weeks ago
• wisepythagoras / honeyshell
  An SSH honeypot written entirely in Go.
  ☆13Updated 2 weeks ago
• peterzen / goresolver
  DNSSEC validating resolver library
  ☆21Updated last year
• digineo / fastd
  Fast and Secure Tunnelling Daemon (fastd) for FreeBSD
  ☆29Updated 4 years ago