100% free · Runs entirely in your browser · No signup required
⚡ TL;DR: Two free utilities for developers working with captchas — a Sitekey Extractor that finds reCAPTCHA, hCaptcha, Turnstile and FunCaptcha keys in any page source, and a Cost Calculator that estimates your monthly solving bill. Nothing you paste here ever leaves your browser.
Every captcha-solving API needs the target site's sitekey. Instead of digging through page source manually, paste the HTML below (right-click the target page → View page source → copy all) and we detect the keys for you.
Estimate your monthly bill before you commit. Pick a captcha type, enter your volume, and compare CaptchaKings flat pricing against the typical competitor average.
*Competitor figures are mid-range estimates from public pricing pages (August 2026) — check each vendor for current rates. CaptchaKings rates are our published flat prices.
Every new account gets $0.50 in free credit instantly — no credit card required. That is roughly 1,600 image captchas or 800 reCAPTCHA v2 solves to benchmark speed and accuracy on your own targets.
Open the page, right-click and choose View page source, then search for data-sitekey. The 40-character value next to it is the sitekey. Alternatively paste the page source into the extractor above and it detects reCAPTCHA, hCaptcha, Turnstile and FunCaptcha keys automatically.
Yes. The tool runs 100% in your browser with JavaScript. Nothing you paste is uploaded to any server — you can even use it offline. No account and no signup required.
A sitekey is the public identifier of a captcha widget registered by the website owner. Solving APIs like CaptchaKings need the sitekey plus the page URL to generate a response token that the target website will accept as valid.
At CaptchaKings, reCAPTCHA v2 starts at $0.60 per 1,000 solves, so 10,000 solves cost about $6. New accounts receive $0.50 in free credit — roughly 800 free reCAPTCHA solves — with no credit card required.