Head-to-Head Comparison · Alternative to Cloudflare Turnstile · 🤖 automation
Cloudflare Turnstile vs ALTCHA
ALTCHA offers cutting-edge spam and abuse protection for websites and apps, with privacy-friendly CAPTCHA alternatives designed for GDPR compliance. Here is how ALTCHA ($0/mo open source) stacks up against Cloudflare Turnstile ($15/mo) across cost, hosting, data privacy, and real-world trade-offs.
ALTCHA is a verified Open Source-licensed open-source replacement for Cloudflare Turnstile. Switching from Cloudflare Turnstile ($15/mo) saves $180/yr per solo seat, or $900/yr for a 5-person team. Deployment: Runs on Self-host.
The catch: Requires self-hosting setup, updates, and server maintenance compared to managed Cloudflare Turnstile.
Cloudflare Turnstile vs ALTCHA Specifications
facts verified 2026-11-07
| Dimension | Cloudflare Turnstile (Paid) | ALTCHA (Replacement) |
|---|---|---|
| Monthly Price | $15 / mo | $0 / mo |
| 1-Year Cost (1 seat) | $180 / yr | $0 / yr (Save $180) |
| 1-Year Cost (5 seats) | $900 / yr | $0 / yr (Save $900) |
| 1-Year Cost (10 seats) | $1,800 / yr | $0 / yr (Save $1,800) |
| Source & License | Proprietary SaaS | open source Open Source |
| Where It Runs | Vendor Cloud | Self-host (your server) |
| Platforms | Web / Cloud | webself-hosteddocker to self-host |
| GitHub Stars | — | ★ 2.9k (active nov 2026) |
Deep Dive: Switching from Cloudflare Turnstile to ALTCHA
Trade-offs, installation & data architecture
What you trade away
Requires self-hosting setup, updates, and server maintenance compared to managed Cloudflare Turnstile.
How to deploy ALTCHA
Clone https://github.com/altcha-org/altcha or deploy with Docker Compose
What it takes to run
Deploy via Docker or binary release from GitHub and configure environment variables.
Where your data lives
All application data and configuration live on your own server or local database.
Why fork ALTCHA instead of vibe-coding a Cloudflare Turnstile clone?
Instead of paying recurring SaaS fees for Cloudflare Turnstile or rebuilding it from scratch, deploy one of the 6 battle-tested open-source alternatives like Cap.
Cloudflare Turnstile vs ALTCHA FAQ
Is ALTCHA a good free alternative to Cloudflare Turnstile?+
Yes. ALTCHA is a verified open-source (Open Source) replacement for Cloudflare Turnstile. ALTCHA offers cutting-edge spam and abuse protection for websites and apps, with privacy-friendly CAPTCHA alternatives designed for GDPR compliance.
What is the catch when switching from Cloudflare Turnstile to ALTCHA?+
Requires self-hosting setup, updates, and server maintenance compared to managed Cloudflare Turnstile.
How much do you save switching from Cloudflare Turnstile to ALTCHA?+
Cloudflare Turnstile costs $15/mo ($180/yr) per seat, whereas ALTCHA is $0/mo. Switching saves $180/yr for a solo user, $900/yr for a 5-person team, and $1,800/yr for a 10-person team.
How do I install or self-host ALTCHA instead of Cloudflare Turnstile?+
Install: Clone https://github.com/altcha-org/altcha or deploy with Docker Compose. Setup: Deploy via Docker or binary release from GitHub and configure environment variables.
