Website Screenshot API

Free Public API

Capture crisp, pixel-perfect PNG & JPEG screenshots of any dynamic website at scale.

Try in Live Web Tool

POSThttps://api.headless-lender.com/api/v1/screenshot

Public: No Key Needed•Highest Free Quota: 1,000 Req/Mo + 10h Browsers (No Card Required)

Overview & Architecture

Capture high-resolution full-page or viewport screenshots. Handles complex JavaScript, WebGL, custom fonts, retina displays, and full scrolling animations.

Full page scrolling capture with infinite scroll support

CSS selector element clipping

Custom retina device scale factors

Zero headless detection / Anti-bot shielded

Playwright Execution & Valkey Caching Pipeline

Because this endpoint utilizes full headless Chromium rendering, dynamic JavaScript and single-page apps (SPAs) are executed completely before conversion:

1. Cold Scrape (Cache MISS)~800ms – 2.5s

Chromium initializes, fetches the URL, executes client JavaScript, resolves DOM mutations, and generates output.

2. Repeat Request (Cache HIT)~5ms – 15ms

Returned instantly from Valkey/Redis cache with header X-Lender-Cache: HIT (15-minute TTL).

Code Integration Examples

Instant Public Endpoint: Zero configuration, no API key needed. Want our highest free quota? Get 1,000 free requests/month + 10 hours of cloud browsers with a free key (No credit card required).

curl -X POST https://api.headless-lender.com/api/v1/screenshot \
  -H "Content-Type: application/json" \
  -d '{
    "url": "https://github.com/trending",
    "fullPage": true,
    "format": "png"
  }' --output screenshot.png

Headers & Authentication Standard

1. Public Access (No Key)

No Authorization header required. Simply send a JSON POST request. Perfect for quick prototypes, small scripts, and low-volume scraping.

Content-Type: application/json

2. Free API Key (Highest Free Quota)

1,000 Req/Mo Free

Sign up in 10s with no credit card required. Unlocks 1,000 free monthly requests, 600 browser minutes (10 hours), 120 req/min burst limits, and cache-bypass controls.

Authorization: Bearer hl_live_your_api_key_here

Access Mode	Monthly Quota	Cloud Browser Time	Burst Limit	Credit Card	Action
Public Anonymous	Daily IP Allowance	5-min trial sandbox	10 req/min	None	Instant (No Setup)
Free Account (Highest Quota)	1,000 Req / Month	600 Mins (10 Hours)	120 req/min	Zero ($0 forever)	Claim Free Key →

Request Body Parameters

Field	Type	Required	Default	Description
url	string	required	—	Target website URL to capture.
fullPage	boolean	optional	false	Capture the entire scrollable height of the webpage.
format	'png' \| 'jpeg'	optional	'png'	Image encoding format.
quality	number (1-100)	optional	80	JPEG compression quality (only applicable when format is jpeg).
selector	string	optional	—	CSS selector to capture only a specific DOM element.
waitUntil	'domcontentloaded' \| 'load' \| 'networkidle'	optional	'domcontentloaded'	Page lifecycle state to wait for before taking the screenshot.

Response Schema & Example

200 OK — application/jsonDuration: ~800ms (Cold) / ~8ms (Cached)

Binary stream of image/png or image/jpeg

URL to Markdown Webpage to PDF