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Head-to-head · CAPTCHA Software

Cloudflare Turnstile vs Baidu Cloud CAPTCHA

  • Updated Oct 2026
  • Both researched from official sources
  • 4 checks side by side
Higher score Cloudflare Turnstile #1 in CAPTCHA Software 9.4/10 Free plan Free plan✓ 2 of 3 features Visit Cloudflare
Baidu Cloud CAPTCHA #5 in CAPTCHA Software 8.7/10 Pricing on request ✓ 0 of 3 features Visit Baidu Cloud

Cloudflare Turnstile leads on 1 check, Baidu Cloud CAPTCHA on 0, and 3 are even. Who comes out ahead on the 4 yes/no, price and count checks where we have data for both products. The editor score weighs everything else too.

Our verdict

  • Highest scoreCloudflare Turnstile · 9.4/10
  • Free planonly Cloudflare Turnstile
  • Most featuresCloudflare Turnstile · 2 of 3

Cloudflare Turnstile scores higher on our rubric for captcha software: 9.4 against 8.7 out of 10; our editors rank them #1 and #5.

Cloudflare Turnstile offers free plan; Baidu Cloud CAPTCHA doesn't. On sdk platforms, Cloudflare Turnstile gives you Both where Baidu Cloud CAPTCHA offers Web.

Cloudflare Turnstile is the better fit for teams wanting a free, low-friction web CAPTCHA. Baidu Cloud CAPTCHA is the better fit for organizations seeking visual challenges and managed support.

  • Cloudflare Turnstile fits best

    Teams wanting a free, low-friction web CAPTCHA

  • Baidu Cloud CAPTCHA fits best

    Organizations seeking visual challenges and managed support

Advertiser disclosure: iTechGuides is reader-supported. Vendors can pay for top positions in our rankings and for a place on other products' pages, and we may earn a commission when you click some links. Bought places stand at the number bought; this page and our disclosure say so. Paying vendors may get a fuller, more detailed review from our editors, and that review can change their score. How we rank.

Side by side

Feature Cloudflare Turnstile 9.4/10 Visit ↗ Baidu Cloud CAPTCHA 8.7/10 Visit ↗
At a glance
Editor score 9.4 8.7
Ranking #1 in CAPTCHA Software #5 in CAPTCHA Software
Best for Teams wanting a free, low-friction web CAPTCHA Organizations seeking visual challenges and managed support
Pricing model Free plan + paid Paid
Starting price — Pricing on request
Free plan ✓ (best) —
Free trial — —
Deployment Cloud Cloud
Platforms Web Web
Support Community, Docs Phone, Tickets, Docs, Live chat · 24/7
Built for Solo, Small business, Mid-market, Enterprise Small business, Mid-market, Enterprise
Features Cloudflare Turnstile 2/3 · Baidu Cloud CAPTCHA 0/3
Audio challenge — Not checked yet
Accessibility options ✓ (best) Not checked yet
Privacy controls ✓ (best) Not checked yet
Specs
CAPTCHA modes Not checked yet Not checked yet
Monthly verifications Not checked yet Not checked yet
SDK platforms Both Web
Our review
Pros
  • Free plan includes up to 20 widgets and unlimited challenges
  • Managed mode can require a checkbox based on risk signals
  • Siteverify API validates tokens server-side
  • Offers slider, numeric image, text-order, and track-drawing challenges
  • Selects challenge types dynamically according to risk
  • Includes server-side verification and advertises 99.99% availability
Cons
  • Free plan support is community-based
  • Enterprise pricing is custom
  • No audio challenge option
  • Pricing is contact-sales, and there is no perpetual free plan
  • Documented SDK support is for web and H5; mobile support is not yet available
  • Cloud deployment may not fit organizations requiring another deployment model
Our verdict

Cloudflare Turnstile is a CAPTCHA alternative for websites and applications that need to distinguish human visitors from automated traffic. It fits teams seeking verification that can avoid interrupting visitors, from solo projects through…

Read the review →

Baidu Cloud CAPTCHA is a cloud-hosted human-verification service for websites and H5 pages. It is aimed at organizations protecting registration, login, marketing campaigns, community interactions, and downloadable resources. Its visual…

Read the review →
  1. Cloudflare TurnstileCAPTCHA Software 9.4Free plan
  2. Baidu Cloud CAPTCHACAPTCHA Software 8.7Pricing on request

Strengths and trade-offs

  • Cloudflare Turnstile — where it wins

    • Free plan includes up to 20 widgets and unlimited challenges
    • Managed mode can require a checkbox based on risk signals
    • Siteverify API validates tokens server-side

    Where it doesn't

    • Free plan support is community-based
    • Enterprise pricing is custom
    • No audio challenge option

  • Baidu Cloud CAPTCHA — where it wins

    • Offers slider, numeric image, text-order, and track-drawing challenges
    • Selects challenge types dynamically according to risk
    • Includes server-side verification and advertises 99.99% availability

    Where it doesn't

    • Pricing is contact-sales, and there is no perpetual free plan
    • Documented SDK support is for web and H5; mobile support is not yet available
    • Cloud deployment may not fit organizations requiring another deployment model
  • Cloudflare Turnstile9.4/10 · Free plan

    A free CAPTCHA alternative with adaptive checks, invisible modes and server-side validation.

    Visit CloudflareFull verdict →
  • Baidu Cloud CAPTCHA8.7/10 · Pricing on request

    A cloud CAPTCHA service for web and H5 flows that need adaptive visual challenges.

    Visit Baidu CloudFull verdict →

More comparisons

All CAPTCHA software comparisons → · Full ranking →

Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

Last updated · How we research and update