Customization

Custom rendering. Full control.

Inject CSS/JS, hide elements, set wait strategies, execute JavaScript before capture. Make every screenshot look exactly how you want.

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Real output

Same page, different rendering

render.com captured with different rendering options — light mode, dark mode, and custom CSS injection.

dark_mode: false
render.com in light mode

Default light mode

dark_mode: true
render.com in dark mode

Forced dark color scheme

inject_css: "..."
render.com with injected CSS (grayscale)

Custom CSS: full grayscale filter

Injection

Three ways to customize

CSS injection

Add custom stylesheets. Hide elements, change fonts, adjust colors, override any style before capture.

JavaScript injection

Execute scripts before capture. Click buttons, fill forms, dismiss dialogs, trigger animations.

Element hiding

Target elements by CSS selector to remove before capture. No CSS knowledge needed — just pass selectors.

CSS & selectors

Inject styles, hide elements

Use inject_css for custom stylesheets and hide_selectors to remove elements by CSS selector.

Both are applied before the screenshot is taken, giving you pixel-perfect control over the final output.

POST /v1/screenshot
{
  "url": "https://example.com",
  "inject_css": ".cookie-banner { display: none } .hero { background: #1a1a2e }",
  "hide_selectors": [
    "#header-ad",
    ".newsletter-popup",
    "[data-testid='chat-widget']"
  ]
}

Wait strategies

Wait for the right moment

Wait for selector

Wait until a specific CSS selector appears in the DOM. Perfect for dynamically loaded content.

Wait for timeout

Wait a fixed number of milliseconds after page load. Simple but effective for animations.

Wait for network idle

Wait until the network has been idle for 500ms. Catches all async data loading.

Custom JavaScript

Execute a script that returns true when the page is ready. Maximum flexibility.

JavaScript execution

Execute scripts before capture

Click buttons, fill forms, scroll to elements, dismiss dialogs — anything you can do in a browser console, you can do before capture.

Combine with wait_for_selector to wait for the result of your script before taking the screenshot.

POST /v1/screenshot
{
  "url": "https://example.com",
  "execute_js": "document.querySelector('.load-more').click()",
  "wait_for_selector": ".results-loaded",
  "wait_timeout": 5000
}

Your page, your rules

Inject CSS, execute JavaScript, wait for anything. Full rendering control.

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