OSS Discovery

UN
Global
SECURITY & PRIVACY
SELF-HOSTABLE
ACTIVELY MAINTAINED
FREEMIUM
Private Captcha

PRIVATE CAPTCHA

Private Captcha: Privacy-first CAPTCHA service blocking bots with invisible cryptographic protection, no tracking or cookies, utilizing advanced algorithms and secure integrations.

GITHUB STARS
166
+12% this month
FORKS
5
Active community
LAST PUSH
Apr 24, 2026
High momentum
WATCHERS
1
Tracking updates
LICENSE
Other
Commercial use
**Private Captcha** is a CAPTCHA service that blocks bots with invisible cryptographic protection. It is built for developers who need to protect forms and APIs from spam and abuse. It runs on a privacy-first approach, without tracking or collecting user data.

High Performance

Built for speed and minimal overhead.

Self-hostable

Docker, Kubernetes, or bare metal

Developer Native

Programmable via any language workflow

SUPPORTED LANGUAGES

Go
Go
HTML
HTML
JavaScript
JavaScript
CSS
CSS
Shell
Shell
Makefile
Makefile
Dockerfile
Dockerfile
PLpgSQL
PLpgSQL

VISUAL INTERFACE

Screenshot 1
Screenshot 2
Screenshot 3

The Quick Glance

Status
Active
Category
Security & Privacy
Pricing
Freemium
Self-Hosted
Yes
Available on
Windows
macOS
Linux
Latest Release
v1.32.0
Apr 14, 2026

Relative Standing — across 1,284 tools

STARS166
Top 90% globally
FORKS5
Top 93% in Open Source
ACTIVITYHigh
Top 36% Activity
WATCHERS1
Top 94% Community