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Find free alternatives to paid software.
Created by Sushil Kumar Sah.

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gonic’s Go gopher artwork by Renee French · CC BY 4.0 · Image credits.

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DirectoryProcaptcha

CAPTCHA & Bot Protection Tools

Procaptcha

Decentralized CAPTCHA for enhanced web security.

Pricing not verified

We have not checked this tool’s current pricing. Visit its official website before choosing a plan.

Visit website Source repository

302Repository stars

10Forks

Apache-2.0License

5d agoLast commit

Procaptcha product interface — Procaptcha · official product interface

About Procaptcha

Decentralized CAPTCHA for enhanced web security. Visit the project website to check the currently available deployment options.

Installation and setup

Follow the publisher’s current installation or quickstart guide for the edition and device you want to use. Tool-specific installation steps have not yet been checked by AltStack.

Open the official website or source repository below.
Check its supported devices and installation requirements, along with the pricing shown on this page.
Follow the provider’s instructions, then try a small non-sensitive sample before using important files.

Open the official project Source repository

Explore the project

CAPTCHA & Bot Protection Tools

Technology stack

Technologies recorded in the catalog snapshot.

Github Actions JavaScript NodeJS CSS Bash Docker Typescript JSX React npm Vite Zod Vitest Redis Express Babel Esbuild Webpack Vue Biome JS Vue.js Swift MongoDB Kotlin SWC CypressCI Svelte Angular Caddy NX

Tags

privacy security captcha proof-of-work spam-protection antispam ddos-protection captcha-alternative ddos-mitigation spam-detection bot-detection hcaptcha invisible-captcha recaptcha self-host bot-defense frictionless-captcha human-verification polkadot procaptcha spam

Alternative to

Cloudflare Turnstile

Project details

License Apache-2.0

Hosting Check project website

Status Listed

Data checked 11 Oct 2026

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