Arabic and RTL CAPTCHA Handling with CaptchaAI

Arabic, Farsi, and Hebrew websites present CAPTCHAs with right-to-left (RTL) scripts that challenge standard OCR and text injection. Arabic characters connect differently based on position — initial, medial, final, or isolated forms — making image CAPTCHA recognition harder. Combined with RTL page layouts that affect element positioning, these sites need specific handling.

RTL CAPTCHA Challenges

Python: Arabic Image CAPTCHA

import requests
import base64
import time

API_KEY = "YOUR_API_KEY"
SUBMIT_URL = "https://ocr.captchaai.com/in.php"
RESULT_URL = "https://ocr.captchaai.com/res.php"


def solve_arabic_captcha(image_path: str) -> str:
    """Solve an Arabic script image CAPTCHA."""
    with open(image_path, "rb") as f:
        image_b64 = base64.b64encode(f.read()).decode()

    resp = requests.post(SUBMIT_URL, data={
        "key": API_KEY,
        "method": "base64",
        "body": image_b64,
        "language": 2,          # Non-Latin character support
        "json": 1,
    }, timeout=30).json()

    if resp.get("status") != 1:
        raise RuntimeError(f"Submit: {resp.get('request')}")

    task_id = resp["request"]
    for _ in range(24):
        time.sleep(5)
        poll = requests.get(RESULT_URL, params={
            "key": API_KEY, "action": "get", "id": task_id, "json": 1,
        }, timeout=15).json()

        if poll.get("request") == "CAPCHA_NOT_READY":
            continue
        if poll.get("status") == 1:
            return poll["request"]
        raise RuntimeError(f"Solve: {poll.get('request')}")

    raise RuntimeError("Timeout")


def solve_arabic_captcha_from_url(session: requests.Session,
                                   captcha_url: str) -> str:
    """Download and solve an Arabic CAPTCHA from a URL."""
    resp = session.get(captcha_url, timeout=15)
    image_b64 = base64.b64encode(resp.content).decode()

    submit = requests.post(SUBMIT_URL, data={
        "key": API_KEY,
        "method": "base64",
        "body": image_b64,
        "language": 2,
        "json": 1,
    }, timeout=30).json()

    if submit.get("status") != 1:
        raise RuntimeError(f"Submit: {submit.get('request')}")

    task_id = submit["request"]
    for _ in range(24):
        time.sleep(5)
        poll = requests.get(RESULT_URL, params={
            "key": API_KEY, "action": "get", "id": task_id, "json": 1,
        }, timeout=15).json()

        if poll.get("request") == "CAPCHA_NOT_READY":
            continue
        if poll.get("status") == 1:
            return poll["request"]
        raise RuntimeError(f"Solve: {poll.get('request')}")

    raise RuntimeError("Timeout")


# --- RTL-aware form submission ---

def submit_form_with_arabic_captcha(
    form_url: str,
    captcha_url: str,
    form_data: dict,
    captcha_field: str = "captcha",
) -> requests.Response:
    """Complete an Arabic website form with CAPTCHA."""
    session = requests.Session()
    session.headers.update({
        "Accept-Language": "ar-SA,ar;q=0.9",
        "Content-Type": "application/x-www-form-urlencoded; charset=UTF-8",
    })

    # Load the form page to establish session
    session.get(form_url, timeout=15)

    # Solve the CAPTCHA
    captcha_text = solve_arabic_captcha_from_url(session, captcha_url)
    print(f"Arabic CAPTCHA solved: {captcha_text}")

    # Submit with the solved text
    form_data[captcha_field] = captcha_text
    response = session.post(form_url, data=form_data, timeout=30)

    return response


# --- Usage ---

# Simple Arabic image CAPTCHA
text = solve_arabic_captcha("arabic_captcha.png")
print(f"Arabic text: {text}")

# Form submission on Arabic site
response = submit_form_with_arabic_captcha(
    form_url="https://example.sa/registration",
    captcha_url="https://example.sa/captcha/generate",
    form_data={
        "name": "اسم المستخدم",
        "email": "user@example.com",
    },
)

JavaScript: Arabic and RTL CAPTCHA

const API_KEY = "YOUR_API_KEY";
const SUBMIT_URL = "https://ocr.captchaai.com/in.php";
const RESULT_URL = "https://ocr.captchaai.com/res.php";
const fs = require("fs");

async function solveArabicCaptcha(imagePath) {
  const imageB64 = fs.readFileSync(imagePath, "base64");

  const body = new URLSearchParams({
    key: API_KEY,
    method: "base64",
    body: imageB64,
    language: "2",
    json: "1",
  });

  const resp = await (await fetch(SUBMIT_URL, { method: "POST", body })).json();
  if (resp.status !== 1) throw new Error(`Submit: ${resp.request}`);

  const taskId = resp.request;
  for (let i = 0; i < 24; i++) {
    await new Promise((r) => setTimeout(r, 5000));
    const url = `${RESULT_URL}?key=${API_KEY}&action=get&id=${taskId}&json=1`;
    const poll = await (await fetch(url)).json();
    if (poll.request === "CAPCHA_NOT_READY") continue;
    if (poll.status === 1) return poll.request;
    throw new Error(`Solve: ${poll.request}`);
  }
  throw new Error("Timeout");
}

// Inject CAPTCHA token into RTL page with Playwright
async function solveAndInjectRTL(page) {
  // RTL pages may position the CAPTCHA differently
  const captchaImg = await page.locator("img[id*='captcha'], img[class*='captcha']");
  const imgSrc = await captchaImg.getAttribute("src");

  // Download the image
  const buffer = await (await fetch(imgSrc)).arrayBuffer();
  const imageB64 = Buffer.from(buffer).toString("base64");

  // Solve
  const body = new URLSearchParams({
    key: API_KEY, method: "base64", body: imageB64,
    language: "2", json: "1",
  });
  const resp = await (await fetch(SUBMIT_URL, { method: "POST", body })).json();
  if (resp.status !== 1) throw new Error(`Submit: ${resp.request}`);

  const taskId = resp.request;
  for (let i = 0; i < 24; i++) {
    await new Promise((r) => setTimeout(r, 5000));
    const url = `${RESULT_URL}?key=${API_KEY}&action=get&id=${taskId}&json=1`;
    const poll = await (await fetch(url)).json();
    if (poll.request === "CAPCHA_NOT_READY") continue;
    if (poll.status === 1) {
      // Fill the input — RTL input handles text direction automatically
      await page.locator("input[name*='captcha']").fill(poll.request);
      return poll.request;
    }
    throw new Error(`Solve: ${poll.request}`);
  }
}

// Usage
const text = await solveArabicCaptcha("arabic_captcha.png");
console.log(`Arabic text: ${text}`);

RTL Scripts Supported

Troubleshooting

FAQ

Does CaptchaAI handle connected Arabic script?

Yes. Arabic characters connect when adjacent — the same letter looks different depending on its position in a word. CaptchaAI's Image/OCR solver recognizes connected Arabic script including initial, medial, final, and isolated letter forms.

How do I handle Farsi CAPTCHAs vs. Arabic CAPTCHAs?

Both use the Arabic script but with additional characters (like پ, چ, ژ, گ in Farsi). Use language=2 for both. CaptchaAI recognizes the extended character set automatically.

Do RTL page layouts affect CAPTCHA detection?

RTL layouts mirror the page — forms and CAPTCHAs may appear on opposite sides compared to LTR pages. Use CSS selectors or IDs to locate CAPTCHA elements rather than relying on visual position.

Next Steps

Solve CAPTCHAs on Arabic and RTL websites — get your CaptchaAI API key and handle any RTL character set.

Related guides:

• Solving CAPTCHAs on Chinese Websites
• Multi-Language Image CAPTCHA Character Set
• CAPTCHA Localization and Language Settings