Use the Java captcha solver to automatically bypass any captcha — including reCAPTCHA v2, Invisible, v3, Enterprise, hCaptcha, Cloudflare Turnstile, GeeTest sliders, Amazon AWS WAF, FunCaptcha, and both image and text-based captchas.
To get started quickly, check out the captcha solver API documentation.
Helpful links:
- reCAPTCHA v2 solver
- reCAPTCHA v3 solver
- hCaptcha solver
- Text and image captcha solver
- Cloudflare captcha solver (Turnstile)
- Amazon captcha solver (AWS WAF)
- GeeTest solver
- FunCaptcha (Arkose Labs) solver
- Other types
- Fast and fully automated captcha solving
- Native support for Java 8+
- Works with HttpURLConnection, Apache HttpClient, OkHttp, or - Spring WebClient
- Easily integrates into Spring Boot, Jakarta EE, or standalone - Java apps
- Async-friendly architecture using Futures, - CompletableFutures, or reactive streams
- Pay only for successful solves
- 99.9% uptime
- 24/7 developer support
- Accessibility
- Web scraping behind protected pages
- Automating form submissions in enterprise Java applications
- Background captcha solving in scheduled jobs or microservices
- QA pipelines with captcha bypass
- Security testing and anti-bot evaluation
Need help integrating with your Go project? Open an issue or fork this repo to contribute.
- Java captcha solver: Bypass reCAPTCHA, Cloudflare, hCaptcha, Amazon and More
- Get in touch
- License
(Coming soon) solveaptcha-java artifact is available in Maven Central
You can install the library directly from GitHub using JitPack:
allprojects {
repositories {
maven { url 'https://jitpack.io' }
}
}dependencies {
implementation 'com.github.solvercaptcha:solvecaptcha-java:1.0.0'
}
Replace 1.0.0 with the latest version tag from the releases.
solvecaptcha instance can be created like this:
solvecaptcha solver = new solvecaptcha('YOUR_API_KEY');Also there are few options that can be configured:
solver.setHost("solvecaptcha.com");
solver.setDefaultTimeout(120);
solver.setRecaptchaTimeout(600);
solver.setPollingInterval(10);
solver.setExtendedResponse(1);| Option | Default value | Description |
|---|---|---|
| host | solvecaptcha.com |
API server. You can set it to solvecaptcha.com if your account is registered there |
| defaultTimeout | 120 | Polling timeout in seconds for all captcha types except ReCaptcha. Defines how long the module tries to get the answer from res.php API endpoint |
| recaptchaTimeout | 600 | Polling timeout for ReCaptcha in seconds. Defines how long the module tries to get the answer from res.php API endpoint |
| pollingInterval | 10 | Interval in seconds between requests to res.php API endpoint, setting values less than 5 seconds is not recommended |
| extendedResponse | 0 | Json or String format response from res.php API endpoint, extendedResponse = 1 returns JSON format response |
To get the answer manually use getResult method
Tip
Use the extendedResponse(1) setting to obtain an extended response for the captcha. When using extendedResponse(1), the response will be presented as a JSON string. Utilizing the extended response extendedResponse(1) will be helpful when solving captchas such as hCaptcha and ClickCaptcha. When using extendedResponse(1) for hCaptcha, the response will include additional fields, such as respKey and useragent.
Default answer for hCaptcha answer looks like this: P1_eyJ0eXAiOiJKV1QiLCJhbGciOiJIUzI1NiJ9...
An extended response using extendedResponse(1) for an hCaptcha answer looks like this: {"request":"P1_eyJ0eXAiOiJKV1QiLCJhbGciOiJIUzI1NiJ9...","respKey":"E0_eyJ0eXAiOiJKV1QiLCJhbGciOiJIUzI1NiJ9...","useragent":"Mozilla/5.0 (Windows NT 10.0; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/126.0.6478.127 Safari/537.36","status":1}
When you submit any image-based captcha use can provide additional options to help SolveCaptcha workers to solve it properly.
| Option | Default Value | Description |
|---|---|---|
| numeric | 0 | Defines if captcha contains numeric or other symbols see more info in the API docs |
| minLength | 0 | minimal answer lenght |
| maxLength | 0 | maximum answer length |
| phrase | 0 | defines if the answer contains multiple words or not |
| caseSensitive | 0 | defines if the answer is case sensitive |
| calc | 0 | defines captcha requires calculation |
| lang | - | defines the captcha language, see the list of supported languages |
| hintImg | - | an image with hint shown to workers with the captcha |
| hintText | - | hint or task text shown to workers with the captcha |
Below you can find basic examples for every captcha type. Check out examples directory to find more examples with all available options.
Example below shows a basic solver call example with error handling.
Normal captcha = new Normal();
captcha.setFile("path/to/captcha.jpg");
captcha.setMinLen(4);
captcha.setMaxLen(20);
captcha.setCaseSensitive(true);
captcha.setLang("en");
try {
solver.solve(captcha);
System.out.println("Captcha solved: " + captcha.getCode());
} catch (Exception e) {
System.out.println("Error occurred: " + e.getMessage());
}To bypass a normal captcha (distorted text on image) use the following method. This method also can be used to recognize any text on the image.
Normal captcha = new Normal();
captcha.setFile("path/to/captcha.jpg");
captcha.setNumeric(4);
captcha.setMinLen(4);
captcha.setMaxLen(20);
captcha.setPhrase(true);
captcha.setCaseSensitive(true);
captcha.setCalc(false);
captcha.setLang("en");
captcha.setHintImg(new File("path/to/hint.jpg"));
captcha.setHintText("Type red symbols only");This method can be used to bypass a captcha that requires to answer a question provided in clear text.
Text captcha = new Text();
captcha.setText("If tomorrow is Saturday, what day is today?");
captcha.setLang("en");Use this method to solve ReCaptcha V2 and obtain a token to bypass the protection.
ReCaptcha captcha = new ReCaptcha();
captcha.setSiteKey("6Le-wvkSVVABCPBMRTvw0Q4Muexq1bi0DJwx_mJ-");
captcha.setUrl("https://mysite.com/page/with/recaptcha");
captcha.setInvisible(true);
captcha.setEnterprise(true);
captcha.setAction("verify");
captcha.setProxy("HTTPS", "login:password@IP_address:PORT");This method provides ReCaptcha V3 solver and returns a token.
ReCaptcha captcha = new ReCaptcha();
captcha.setSiteKey("6Le-wvkSVVABCPBMRTvw0Q4Muexq1bi0DJwx_mJ-");
captcha.setUrl("https://mysite.com/page/with/recaptcha");
captcha.setVersion("v3");
captcha.setEnterprise(false);
captcha.setAction("verify");
captcha.setScore(0.3);
captcha.setProxy("HTTPS", "login:password@IP_address:PORT");FunCaptcha (Arkoselabs) solving method. Returns a token.
FunCaptcha captcha = new FunCaptcha();
captcha.setSiteKey("69A21A01-CC7B-B9C6-0F9A-E7FA06677FFC");
captcha.setUrl("https://mysite.com/page/with/funcaptcha");
captcha.setSUrl("https://client-api.arkoselabs.com");
captcha.setUserAgent("Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/83.0.4103.61 Safari/537.36");
captcha.setData("anyKey", "anyValue");
captcha.setProxy("HTTPS", "login:password@IP_address:PORT");Method to solve GeeTest puzzle captcha. Returns a set of tokens as JSON.
GeeTest captcha = new GeeTest();
captcha.setGt("f2ae6cadcf7886856696502e1d55e00c");
captcha.setApiServer("api-na.geetest.com");
captcha.setChallenge("12345678abc90123d45678ef90123a456b");
captcha.setUrl("https://mysite.com/captcha.html");
captcha.setProxy("HTTPS", "login:password@IP_address:PORT");Method to solve GeeTestV4 puzzle captcha. Returns a set of tokens as JSON.
GeeTestV4 captcha = new GeeTestV4();
captcha.setCaptchaId("72bf15796d0b69c43867452fea615052");
captcha.setApiServer("api-na.geetest.com");
captcha.setChallenge("12345678abc90123d45678ef90123a456b");
captcha.setUrl("https://mysite.com/captcha.html");
captcha.setProxy("HTTPS", "login:password@IP_address:PORT");Method to solve hCaptcha captcha. Returns a token.
Use setExtendedResponse to get respKey and useragent in captcha answer.
HCaptcha captcha = new HCaptcha();
captcha.setSiteKey("c0421d06-b92e-47fc-ab9a-5caa43c04538");
captcha.setUrl("https://mysite.com/page/with/hcaptcha");
captcha.setProxy("HTTPS", "login:password@IP_address:PORT");Token-based method to solve KeyCaptcha.
KeyCaptcha captcha = new KeyCaptcha();
captcha.setUserId(10);
captcha.setSessionId("493e52c37c10c2bcdf4a00cbc9ccd1e8");
captcha.setWebServerSign("9006dc725760858e4c0715b835472f22");
captcha.setWebServerSign2("2ca3abe86d90c6142d5571db98af6714");
captcha.setUrl("https://www.keycaptcha.ru/demo-magnetic/");
captcha.setProxy("HTTPS", "login:password@IP_address:PORT");Token-based method to bypass Capy puzzle captcha.
Capy captcha = new Capy();
captcha.setSiteKey("PUZZLE_Abc1dEFghIJKLM2no34P56q7rStu8v");
captcha.setUrl("https://www.mysite.com/captcha/");
captcha.setProxy("HTTPS", "login:password@IP_address:PORT");Grid method is originally called Old ReCaptcha V2 method. The method can be used to bypass any type of captcha where you can apply a grid on image and need to click specific grid boxes. Returns numbers of boxes.
Grid captcha = new Grid();
captcha.setFile("path/to/captcha.jpg");
captcha.setRows(3);
captcha.setCols(3);
captcha.setPreviousId(0);
captcha.setCanSkip(false);
captcha.setLang("en");
captcha.setHintImg(new File("path/to/hint.jpg"));
captcha.setHintText("Select all images with an Orange");Canvas method can be used when you need to draw a line around an object on image. Returns a set of points' coordinates to draw a polygon.
Canvas captcha = new Canvas();
captcha.setFile("path/to/captcha.jpg");
captcha.setPreviousId(0);
captcha.setCanSkip(false);
captcha.setLang("en");
captcha.setHintImg(new File("path/to/hint.jpg"));
captcha.setHintText("Draw around apple");ClickCaptcha method returns coordinates of points on captcha image. Can be used if you need to click on particular points on the image.
Coordinates captcha = new Coordinates();
captcha.setFile("path/to/captcha.jpg");
captcha.setLang("en");
captcha.setHintImg(new File("path/to/hint.jpg"));
captcha.setHintText("Select all images with an Orange");This method can be used to solve a captcha that asks to rotate an object. Mostly used to bypass FunCaptcha. Returns the rotation angle.
Rotate captcha = new Rotate();
captcha.setFile("path/to/captcha.jpg");
captcha.setAngle(40);
captcha.setLang("en");
captcha.setHintImg(new File("path/to/hint.jpg"));
captcha.setHintText("Put the images in the correct way up");This method can be used to solve a audio captcha
solvecaptcha solver = new Solvecaptcha(args[0]);
byte[] bytes = Files.readAllBytes(Paths.get("src/main/resources/audio-en.mp3"));
String base64EncodedImage = Base64.getEncoder().encodeToString(bytes);
Audio captcha = new Audio();
captcha.setBase64(base64EncodedImage);Use this method to solve Yandex and obtain a token to bypass the protection.
solvecaptcha solver = new Solvecaptcha(args[0]);
Yandex captcha = new Yandex();
captcha.setSiteKey("Y5Lh0tiycconMJGsFd3EbbuNKSp1yaZESUOIHfeV");
captcha.setUrl("https://rutube.ru");Use this method to solve Lemin and obtain a token to bypass the protection.
solvecaptcha solver = new Solvecaptcha(args[0]);
Lemin captcha = new Lemin();
captcha.setСaptchaId("CROPPED_d3d4d56_73ca4008925b4f83a8bed59c2dd0df6d");
captcha.setUrl("http://sat2.aksigorta.com.tr");
captcha.setApiServer("api.leminnow.com");Use this method to solve Turnstile and obtain a token to bypass the protection.
solvecaptcha solver = new Solvecaptcha(args[0]);
Turnstile captcha = new Turnstile();
captcha.setSiteKey("0x4AAAAAAAChNiVJM_WtShFf");
captcha.setUrl("https://ace.fusionist.io");Use this method to solve AmazonWaf and obtain a token to bypass the protection.
solvecaptcha solver = new Solvecaptcha(args[0]);
AmazonWaf captcha = new AmazonWaf();
captcha.setSiteKey("AQIDAHjcYu/GjX+QlghicBgQ/7bFaQZ+m5FKCMDnO+vTbNg96AF5H1K/siwSLK7RfstKtN5bAAAAfjB8BgkqhkiG9w0BBwagbzBtAgEAMGgGCSqGSIb3DQEHATAeBglg");
captcha.setUrl("https://non-existent-example.execute-api.us-east-1.amazonaws.com");
captcha.setIV("test_iv");
captcha.setContext("test_context");Use this method to solve Friendly Captcha and obtain a token to bypass the protection.
solvecaptcha solver = new Solvecaptcha(args[0]);
FriendlyCaptcha friendlyCaptcha = new FriendlyCaptcha();
friendlyCaptcha.setSiteKey("FCMST5VUMCBOCGQ9");
friendlyCaptcha.setPageUrl("https://mysite.com/page/with/FriendlyCaptcha");Use this method to solve MtCaptcha and obtain a token to bypass the protection.
solvecaptcha solver = new Solvecaptcha(args[0]);
MtCaptcha mtCaptcha = new MtCaptcha();
mtCaptcha.setSiteKey("MTPublic-KzqLY1cKH");
mtCaptcha.setPageUrl("https://mysite.com/page/with/mtcaptcha");Use this method to solve Tencent and obtain a token to bypass the protection.
solvecaptcha solver = new Solvecaptcha(args[0]);
Tencent tencent = new Tencent();
tencent.setAppId("2092215077");
tencent.setPageUrl("https://mysite.com/page/with/tencent");These methods can be used for manual captcha submission and answer polling.
String captchaId = solver.send(captcha);
Thread.sleep(20 * 1000);
String code = solver.getResult(captchaId);Use this method to get your account's balance
double balance = solver.balance();Use this method to report good or bad captcha answer.
solver.report(captcha.getId(), true); // captcha solved correctly
solver.report(captcha.getId(), false); // captcha solved incorrectlyYou can pass your proxy as an additional argument for methods: recaptcha, funcaptcha, geetest, geetest v4, hcaptcha, keycaptcha, capy puzzle, lemin, turnstile, amazon waf and etc. The proxy will be forwarded to the API to solve the captcha.
captcha.setProxy("HTTPS", "login:password@IP_address:PORT");If case of an error captcha solver throws an exception. It's important to properly handle these cases. We recommend to use try catch to handle exceptions.
try {
solver.solve(captcha);
} catch (ValidationException e) {
// invalid parameters passed
} catch (NetworkException e) {
// network error occurred
} catch (ApiException e) {
// api respond with error
} catch (TimeoutException e) {
// captcha is not solved so far
}
The code in this repository is licensed under the MIT License. See the LICENSE file for more details.