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To capture an HTML snippet with ScreenshotAPI, send the markup in the custom_html parameter to its screenshot endpoint. The API renders that markup into an image or PDF; it does not return the snippet as HTML source. Use GET for short, safely URL-encoded markup and POST for longer documents.
What ScreenshotAPI does with your HTML
ScreenshotAPI’s endpoint documentation says custom_html renders supplied HTML instead of loading a URL: ScreenshotAPI endpoint documentation. The result is a visual artifact, such as PNG image bytes or a PDF—not an HTML source-code snippet. ScreenshotAPI’s HTML or text extraction for webpage content is a separate operation.
Get an API key through your ScreenshotAPI account dashboard, as described in its getting-started documentation. Keep the key on a server or in a secrets manager; do not put a live key in public browser code or a published example.
Send a short snippet with POST
POST is a practical default when your markup is more than a very small snippet: it puts the HTML in the request body rather than a query string that may become too long or be truncated. This runnable cURL example asks for a 1200 × 630 PNG image:
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- Auto-Light Balance: RightLight boosts brightness by up to 50%, reducing shadows so you look your best—compared to previous-generation Logitech webcams (1)
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- Easy Plug-And-Play: The Brio 101 works with most video calling platforms, including Microsoft Teams, Zoom and Google Meet—no hassle; it just works
curl -X POST "https://shot.screenshotapi.net/v3/screenshot"
-H "Content-Type: application/json"
-d '{
"token": "YOUR_API_KEY",
"custom_html": "<div><h1>Hello</h1><p>Rendered snippet</p></div>",
"file_type": "png",
"output": "image",
"width": 1200,
"height": 630
}' --output snippet.pngThe example escapes the angle brackets for safe JSON representation. For real markup, use your programming language’s JSON serializer to build the request body rather than manually escaping a large HTML document. The API key is a placeholder; replace it only in a protected environment.
Choose GET or POST
- GET: Suitable for short markup that can be correctly URL-encoded and fits safely in a query string. Encode the HTML rather than concatenating raw markup into the URL.
- POST: Use for longer markup or documents. Put the markup in the JSON request body as
custom_htmlto avoid query-string length limits and truncation. ScreenshotAPI documents this pattern on its feature page.
The precise maximum request size is not established in the cited documentation, so do not assume that POST accepts an unlimited document. If a request fails, reduce the markup and assets or check the current endpoint limits.
Rank #2
- Compatible with Nintendo Switch 2’s new GameChat mode
- Crisp HD 720p/30 fps video calls with diagonal 55° field of view and auto light correction. Compatible with popular platforms including Skype and Zoom.
- The built-in noise-reducing mic makes sure your voice comes across clearly up to 1.5 meters away, even if you’re in busy surroundings.
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- The adjustable universal clip lets you attach the camera securely to your screen or laptop, or fold the clip and set the webcam on a shelf. You’re always ready for your next video call.
Choose the response and file type
Set output to image when your client should receive image bytes directly. ScreenshotAPI also documents a JSON response mode for workflows that need its structured response. Select the artifact with file_type; supported choices listed by ScreenshotAPI include PNG, JPG, WebP, and PDF.
| Format | Use it when | Trade-off |
|---|---|---|
| PNG | You need lossless rendering or transparency. | Can be larger than a lossy photo-oriented image. |
| JPG | The capture is photo-heavy and smaller files matter. | Lossy compression; transparency is not supported. |
| WebP | You want an image for web delivery. | Confirm that the consuming application supports WebP. |
| You need a document intended for printing or pagination. | It is a document output, not a raster image. |
These are ScreenshotAPI’s format descriptions; the right choice depends on what will consume the result, not on a universally best format. See the ScreenshotAPI format and feature documentation.
Rank #3
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- 【Wide Compatibility】Works with USB 2.0/3.0, no additional drivers required. Ready to use in approximately one minute or less on any compatible device. Compatible with Mac OS X 10.7 and higher / Windows 7, 10 & 11, Pro / Android 4.0 or higher / Linux 2.6.24 / Chrome OS 29.0.1547 / Ubuntu Version 10.04 or above. Not compatible with XBOX/PS4/PS5.
Control when the capture happens
Static markup may render promptly, but scripts, animation, external resources, or asynchronous content can make a capture incomplete. ScreenshotAPI documents several timing strategies: a fixed delay, waiting for a CSS selector that indicates readiness, or waiting for network activity to settle. Choose the signal that matches how the page becomes ready; a selector is often more specific than an arbitrary delay. See the endpoint documentation for available parameters.
If you need a new capture rather than a matching cached result, set fresh=true, as documented in ScreenshotAPI’s getting-started guide.
Rank #4
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- Built-in 2 Omnidirectional Mics - EMEET webcam with microphone for desktop features 2 built-in omnidirectional microphones, picking up your voice to create clear audio for communication. When installing the webcam, select EMEET C960 as the default microphone input device in your computer and video applications and select C960 as the default device in Zoom/Teams and ensure microphone permissions are enabled for proper use. Please note that C960 does not include built-in speakers.
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- Plug-and-Play & Upgraded USB Connectivity - New C960 webcam features both USB Type-A & A-to-C adapter connections for wider compatibility. For stable performance, connect the webcam directly to the computer's main USB port and ensure the device is recognized correctly. If a hub or docking station is used, please ensure it provides sufficient power and stable data transmission, as limited ports may affect performance. 90° wide-angle lens captures more participants without frequent adjustments.
- High Compatibility & Multi Application - C960 webcam for laptop is compatible with Windows 10/11, macOS 10.14+, and Android TV 7.0+. Not supported: Windows Hello, TVs, tablets, or game consoles. It works with Zoom, Teams, Facetime, Google Meet, YouTube and more. Please select C960 webcam as the default camera and microphone device in your application and ensure camera/microphone permissions are enabled, especially on macOS. (Tips: Incompatible with Windows Hello)
Troubleshoot blank, incomplete, or unusable output
- Blank image: Check that
custom_htmlis present and valid JSON, and that the request is reaching the screenshot endpoint. If scripts generate the visible content, wait for a readiness selector or give them more time. - Missing images or late content: Confirm that referenced resources are reachable by the rendering service. Use a selector wait, network-idle wait, or delay if resources load asynchronously.
- Truncated or rejected request: Move long markup from GET into a POST body. If POST still fails, check the endpoint’s current request-size limits and simplify the HTML or its assets.
- Unexpected old capture: Request
fresh=truewhen you need a newly generated result rather than a cache hit. - File cannot be opened: Match your output handling to the response mode. Save image bytes as an image file; if requesting JSON, parse the structured response instead of treating it as PNG bytes.
Or skip the browser setup
ScreenshotNeo is a screenshot API that accepts HTML/CSS to image, alongside URL captures. For example, this GET request renders a URL to WebP; its endpoint accepts HTML/CSS capture options as well:
curl -G "https://api.screenshotneo.com/v1/shot" -d access_key=YOUR_API_KEY --data-urlencode url=https://stripe.com -o shot.webpSee the ScreenshotNeo API documentation for request options. Cookie banners, popups, and chat widgets are removed before capture; bot checks, blank pages, and failed loads are never billed. An MCP server lets AI agents take screenshots. The free plan includes 1,000 screenshots per month with no card, and paid plans start at $5 for 3,000.
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Frequently Asked Questions
Does ScreenshotAPI return the HTML snippet I submitted?
No. The custom_html option renders markup into an image or PDF; it does not return the source markup.
Best Value
- Compatible with Nintendo Switch 2’s new GameChat mode
- HD lighting adjustment and autofocus: The Logitech webcam automatically fine-tunes the lighting, producing bright, razor-sharp images even in low-light settings. This makes it a great webcam for streaming and an ideal web camera for laptop use
- Advanced capture software: Easily create and share video content with this Logitech camera that is suitable for use as a desktop computer camera or a monitor webcam
- Stereo audio with dual mics: Capture natural sound during calls and recorded videos with this 1080p webcam, great as a video conference camera or a computer webcam
- Full HD 1080p video calling and recording at 30 fps. You'll make a strong impression with this PC webcam that features crisp, clearly detailed, and vibrantly colored video
Can I use ScreenshotAPI to capture HTML content from a webpage?
The custom_html parameter is for rendering supplied markup. ScreenshotAPI documents webpage text or HTML extraction separately, so use that operation when you need extracted page content rather than a visual capture.
Quick Recap
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