Examples

How to convert HTML to a base64 image with Puppeteer and C#

Install PuppeteerSharp

dotnet add package PuppeteerSharp

PuppeteerSharp is the .NET port of Puppeteer. BrowserFetcher.DownloadAsync() downloads a compatible Chrome on first run. The examples use C# top-level statements — put them in Program.cs of a console project (dotnet new console) and run with dotnet run.

Get the base64 encoded image of some HTML and print to screen

using PuppeteerSharp;

await new BrowserFetcher().DownloadAsync();
await using var browser = await Puppeteer.LaunchAsync(new LaunchOptions { Headless = true });
await using var page = await browser.NewPageAsync();

await page.SetContentAsync("<html><body><h1>Hello World</h1></body></html>");
var image = await page.ScreenshotBase64Async();
Console.WriteLine(image);

Find out how to generate a PNG from HTML with C# and Puppeteer.

That was 9 lines of code — plus a browser to run in production

Keeping headless browsers fed, patched and scaled is a job in itself. We built Urlbox so the same screenshot is one API call: 

curl "https://api.urlbox.com/v1/YOUR_API_KEY/png?url=https://example.com"

Try the Urlbox screenshot API — free trial, no browser babysitting.