Blog
Latest news, tutorials, and updates from our team.
Wait for page to fully load before screenshot: 4 strategies
I took a screenshot of a public dashboard and got back an image with empty tables. Here are four strategies to wait for a page to fully load, with a real Puppeteer walkthrough.
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How to Generate PDF Invoices and Receipts from HTML Templates with a Screenshot API
Most SaaS apps eventually need to generate invoices programmatically, and most start with a PDF library that fights them on layout. Here's a simpler approach: build your invoice as plain HTML and CSS, then render it to PDF or PNG through Playwright or a screenshot API. Full template, code examples in Node.js, webhook automation with Stripe/Paddle, and tips on fonts, multi-currency formatting, and page breaks.
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How to Use Screenshots for Visual Regression Testing in CI/CD
Visual regression testing catches the UI bugs that unit tests and functional tests miss entirely — broken layouts, shifted buttons, wrong colors. Here's how to build a screenshot-based visual testing pipeline that runs on every pull request, with real code and practical advice on dealing with flaky tests.
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How to take website screenshots with Ruby — Selenium, Ferrum, and API
Ruby doesn't ship with a browser rendering engine, so taking website screenshots requires an external tool. This article covers three approaches — Selenium WebDriver with headless Chrome, Ferrum via DevTools Protocol, and the Screenshotrun API — with working code and a production comparison.
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Convert Any Webpage to PDF with Playwright, Puppeteer, and a Screenshot API
Generating PDFs from live web pages sounds simple until you try it. Here's how to do it with Playwright, Puppeteer, and a screenshot API, with code examples, formatting options, and the gotchas I ran into.
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Capture Dark Mode Screenshots of Any Website (Playwright, Puppeteer, API)
Most websites now support dark mode through prefers-color-scheme. Here's how to capture screenshots in dark mode using Playwright, Puppeteer, and a screenshot API — with code examples and edge cases I ran into along the way.
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Making headless Chromium look human: 10 stealth patches I ship in production
About a third of the sites I tried to screenshot returned a Cloudflare challenge page. Here are the ten stealth patches I now ship inside screenshotrun to make headless Chromium look like a regular browser, with the actual code and honest notes on what still doesn't work.
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How I hide cookie banners, ads and chat widgets in screenshots
Last month a cookie banner ate 40% of my screenshot. Here's the three-layer approach I built to block cookie dialogs, chat widgets and ads before capturing the image — with the actual Playwright code from screenshotrun's renderer.
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How to take a website screenshot with Java (Selenium, Playwright, API)
I kept putting off the Java tutorial because I expected mountains of boilerplate. Turns out Java's built-in HttpClient makes API calls almost as clean as Python's requests. Here are three ways to capture website screenshots with Java — Selenium, Playwright, and an API — with working code, honest comparison, and a Spring Boot integration example.
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How to take screenshots of password-protected pages with a screenshot API
I kept running into the same problem — send a dashboard URL to a screenshot API, get back a picture of the login form. Turns out, passing a session cookie along with the request is all it takes. Here's how I set it up for my own admin panel, with code for cURL, Node.js, and PHP, plus two other auth methods for staging servers and token-protected pages.
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Screenshot API vs Puppeteer/Playwright: when to build and when to buy
I built both sides of this equation — a Playwright renderer and a screenshot API on top of it. Most "build vs buy" articles are written by API vendors pushing you to buy. This one walks through the real problems (lazy loading, cookie banners, memory, timeouts), gives you honest thresholds for when each approach wins, and lets you decide.
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Full-page screenshots and lazy loading: why your captures come out blank and how to fix it
Lazy loading breaks automated full-page screenshots because headless browsers do not scroll. Working fixes for Playwright and Puppeteer with code examples and real-world edge cases
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