SnapAPI — Screenshot & PDF Generation API

Fast, reliable screenshots and PDFs from any URL or HTML. One API call, instant results.

Get your free API key → | API Docs →

Why SnapAPI?

• Fast — Screenshots in <2 seconds, PDFs in <3 seconds
• Simple — One POST request, get an image or PDF back
• Reliable — Chromium-based rendering, handles JavaScript, SPAs, dynamic content
• Flexible — Full page, element selector, dark mode, retina, custom viewport
• Affordable — Free tier included. Paid plans start at $9/mo

Quick Start

# 1. Get your free API key
curl -X POST https://api.usesnapapi.com/v1/keys \
  -H "Content-Type: application/json" \
  -d '{"email": "you@example.com"}'

# 2. Take a screenshot
curl -X POST https://api.usesnapapi.com/v1/screenshot \
  -H "Authorization: Bearer snap_your_key_here" \
  -H "Content-Type: application/json" \
  -d '{"url": "https://example.com"}' \
  -o screenshot.png

# 3. Generate a PDF
curl -X POST https://api.usesnapapi.com/v1/pdf \
  -H "Authorization: Bearer snap_your_key_here" \
  -H "Content-Type: application/json" \
  -d '{"url": "https://example.com"}' \
  -o output.pdf

Features

Screenshot Options

Parameter	Type	Default	Description
url	string	—	URL to capture
html	string	—	Raw HTML to render
width	int	1280	Viewport width (320–3840)
height	int	720	Viewport height (200–2160)
full_page	bool	false	Capture full scrollable page
format	string	"png"	Output: png or jpeg
quality	int	90	JPEG quality (1–100)
delay	int	0	Wait ms after load (0–10000)
selector	string	—	CSS selector for element capture
dark_mode	bool	false	Emulate dark color scheme
device_scale_factor	float	1.0	Retina scale (0.5–3.0)

PDF Options

Parameter	Type	Default	Description
url	string	—	URL to convert
html	string	—	Raw HTML to convert
format	string	"A4"	Page size: A4, Letter, Legal, A3
landscape	bool	false	Landscape orientation
print_background	bool	true	Include backgrounds
margin_*	string	"20px"	Page margins (top/bottom/left/right)
delay	int	0	Wait ms after load

Use Cases

• Social media previews — Generate OG images dynamically
• Invoice generation — HTML template → PDF invoice
• Web archiving — Screenshot pages for records
• Testing — Visual regression testing screenshots
• Reports — Convert dashboards to PDF
• E-commerce — Product page screenshots for marketplaces
• Documentation — Auto-generate screenshots for docs

Pricing

Plan	Price	Screenshots/mo	Best For
Free	$0	500	Testing & personal projects
Starter	$9/mo	5,000	Side projects & small apps
Pro	$29/mo	25,000	Growing SaaS & agencies
Business	$79/mo	100,000	High-volume applications

Need more? Contact us for custom plans.

Code Examples

Python

import requests

API_KEY = "snap_your_key_here"
headers = {
    "Authorization": f"Bearer {API_KEY}",
    "Content-Type": "application/json"
}

# Screenshot
resp = requests.post("https://api.usesnapapi.com/v1/screenshot", headers=headers, json={
    "url": "https://github.com",
    "width": 1280,
    "height": 720,
    "full_page": True
})
with open("github.png", "wb") as f:
    f.write(resp.content)

JavaScript (Node.js)

const response = await fetch("https://api.usesnapapi.com/v1/screenshot", {
  method: "POST",
  headers: {
    "Authorization": "Bearer snap_your_key_here",
    "Content-Type": "application/json"
  },
  body: JSON.stringify({
    url: "https://github.com",
    width: 1280,
    height: 720,
    full_page: true
  })
});

const buffer = await response.arrayBuffer();
fs.writeFileSync("github.png", Buffer.from(buffer));

HTML to PDF (Invoice Example)

curl -X POST https://api.usesnapapi.com/v1/pdf \
  -H "Authorization: Bearer snap_your_key_here" \
  -H "Content-Type: application/json" \
  -d '{
    "html": "<h1>Invoice #001</h1><p>Amount: €100.00</p>",
    "format": "A4",
    "print_background": true
  }' \
  -o invoice.pdf

Self-Hosting

SnapAPI is open source. Run it yourself:

pip install fastapi uvicorn playwright
playwright install chromium

python app.py
# Running on http://localhost:8910

API Reference

Endpoint	Method	Description
/v1/screenshot	POST	Capture screenshot
/v1/pdf	POST	Generate PDF
/v1/keys	POST	Create free API key
/v1/usage	GET	Check usage & limits
/pricing	GET	View plans & upgrade links
/health	GET	Service health check
/docs	GET	Interactive API docs (Swagger)

Built With

• Playwright — Reliable browser automation
• FastAPI — Modern Python web framework
• Chromium — Industry-standard rendering engine

About

Built by Unstable Entity Oy — a Finnish software company building developer tools.

License

MIT — use it however you want.