Code Examples

Take Screenshots with Java

Ready-to-copy Java code for capturing website screenshots, generating PDFs, and processing pages at scale. Uses java.net.http.HttpClient (Java 11+).

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Quick Start

Screenshot in Java — minimal example

The simplest way to capture a screenshot. Just a URL and your API key.

Javaquickstart

var client = HttpClient.newHttpClient();
var request = HttpRequest.newBuilder()
    .uri(URI.create("https://api.screenshotdev.com/v1/screenshot?url=https://example.com&access_key=YOUR_ACCESS_KEY"))
    .build();
var response = client.send(request, HttpResponse.BodyHandlers.ofByteArray());
Files.write(Path.of("screenshot.png"), response.body());

Full Example

Production-ready Java script

Complete working script with options for viewport, format, full page capture, and error handling.

Javafull example

import java.io.IOException;
import java.net.URI;
import java.net.URLEncoder;
import java.net.http.HttpClient;
import java.net.http.HttpRequest;
import java.net.http.HttpResponse;
import java.nio.charset.StandardCharsets;
import java.nio.file.Files;
import java.nio.file.Path;

public class Screenshot {
    private static final String API_KEY = "YOUR_ACCESS_KEY";
    private static final String BASE_URL = "https://api.screenshotdev.com/v1/screenshot";
    private static final HttpClient client = HttpClient.newHttpClient();

    public static byte[] takeScreenshot(
        String url, String format, int width, boolean fullPage
    ) throws IOException, InterruptedException {
        var query = String.join("&",
            "url=" + URLEncoder.encode(url, StandardCharsets.UTF_8),
            "access_key=" + API_KEY,
            "format=" + format,
            "width=" + width,
            "full_page=" + fullPage
        );
        var request = HttpRequest.newBuilder()
            .uri(URI.create(BASE_URL + "?" + query))
            .build();
        var response = client.send(request, HttpResponse.BodyHandlers.ofByteArray());
        if (response.statusCode() != 200) {
            throw new IOException("Screenshot failed (" + response.statusCode() + "): "
                + new String(response.body()));
        }
        return response.body();
    }

    public static void main(String[] args) throws Exception {
        byte[] img = takeScreenshot("https://example.com", "webp", 1440, true);
        Files.write(Path.of("screenshot.webp"), img);
        System.out.printf("Saved screenshot.webp (%d bytes)%n", img.length);
    }
}

Advanced

More Java examples

PDF generation, batch processing, webhooks, CSS/JS injection, and S3 upload.

PDF Generation

Javapdf

var query = String.join("&",
    "url=" + URLEncoder.encode("https://example.com", StandardCharsets.UTF_8),
    "access_key=YOUR_ACCESS_KEY",
    "format=a4",
    "landscape=false",
    "margin=20px"
);
var request = HttpRequest.newBuilder()
    .uri(URI.create("https://api.screenshotdev.com/v1/pdf?" + query))
    .build();
var response = client.send(request, HttpResponse.BodyHandlers.ofByteArray());
Files.write(Path.of("page.pdf"), response.body());

Batch Screenshots

Javabatch

var urls = List.of(
    "https://example.com",
    "https://github.com",
    "https://news.ycombinator.com"
);

var futures = urls.stream().map(url -> CompletableFuture.supplyAsync(() -> {
    try {
        byte[] img = takeScreenshot(url, "webp", 1280, false);
        var host = URI.create(url).getHost();
        Files.write(Path.of(host + ".webp"), img);
        return host + ".webp (" + img.length + " bytes)";
    } catch (Exception e) {
        return "Failed: " + url + " — " + e.getMessage();
    }
})).toList();

futures.forEach(f -> System.out.println("  " + f.join()));

Async with Webhooks

Javawebhooks

var body = """
    {
      "url": "https://example.com",
      "access_key": "YOUR_ACCESS_KEY",
      "webhook_url": "https://your-app.com/api/webhooks/screenshot",
      "format": "webp",
      "full_page": true
    }
    """;
var request = HttpRequest.newBuilder()
    .uri(URI.create("https://api.screenshotdev.com/v1/screenshot"))
    .header("Content-Type", "application/json")
    .POST(HttpRequest.BodyPublishers.ofString(body))
    .build();
var response = client.send(request, HttpResponse.BodyHandlers.ofString());
System.out.println("Job queued: " + response.body());

Custom CSS/JS Injection

Javainject

var query = String.join("&",
    "url=" + URLEncoder.encode("https://example.com", StandardCharsets.UTF_8),
    "access_key=YOUR_ACCESS_KEY",
    "inject_css=" + URLEncoder.encode(
        "body { font-family: 'Inter', sans-serif; } .ad { display: none; }",
        StandardCharsets.UTF_8),
    "inject_js=" + URLEncoder.encode(
        "document.querySelectorAll('[data-cookie-banner]').forEach(el => el.remove())",
        StandardCharsets.UTF_8),
    "block_ads=true"
);
var request = HttpRequest.newBuilder()
    .uri(URI.create(BASE_URL + "?" + query))
    .build();
var response = client.send(request, HttpResponse.BodyHandlers.ofByteArray());
Files.write(Path.of("clean.webp"), response.body());

S3 Upload

Javas3

import software.amazon.awssdk.core.sync.RequestBody;
import software.amazon.awssdk.services.s3.S3Client;
import software.amazon.awssdk.services.s3.model.PutObjectRequest;

// 1. Capture
byte[] img = takeScreenshot("https://example.com", "webp", 1280, false);

// 2. Upload
var s3 = S3Client.create();
s3.putObject(
    PutObjectRequest.builder()
        .bucket("my-screenshots")
        .key("captures/example-com.webp")
        .contentType("image/webp")
        .build(),
    RequestBody.fromBytes(img)
);

Try it live

Test the API in the interactive playground — pre-filled with Java snippets.

Open playground →

Setup

Installation

Install the HTTP library used in the examples above.

Terminalinstall

# No dependencies — uses java.net.http from Java 11+

Uses java.net.http.HttpClient (Java 11+). Any HTTP client that supports GET requests will work.

More Examples

Code examples in other languages

Kotlin

OkHttp or java.net.http

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