ceven

HTML to Image

Converts HTML and CSS into high resolution images and captures live web page screenshots to automate visual asset generation.

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Why use Ceven?

  1. AI native HTML to Image integration

    • Describe the outcome and Ceven picks the right HTML to Image calls, fills the parameters, and checks the result.
    • Structured, agent friendly tool schemas so each call runs reliably instead of by guesswork.
    • Rich coverage for reading, writing, and querying your HTML to Image data, across all 3 of its actions.

  2. Managed auth

    • Built in OAuth with automatic token refresh and rotation.
    • One place to manage, scope, and revoke HTML to Image access.
    • Per user and per environment credentials instead of shared keys.

  3. Agent optimized design

    • Actions are tuned from real success and error rates so reliability climbs over time.
    • Full execution logs so you always know what ran in HTML to Image, when, and on whose behalf.
    • The agent pauses and asks when HTML to Image is unclear instead of plowing ahead.

  4. Enterprise grade security

    • Fine grained access so you control which agents and people can reach HTML to Image.
    • Least privilege by default, read scopes first and only the writes a workflow needs.
    • A full audit trail of every HTML to Image action to support review and sign off.

Supported tools

Every action Ceven's agents can run on HTML to Image, and when to use it.

Convert HTML to Image
Use this when you need to turn a raw HTML string or CSS block into a downloadable image file for a report or social post.
Get HTML to Image
Pull a previously generated image using its unique ID to resize it or move it to permanent storage.
Check Account Usage
Pull current hourly and daily image creation counts to ensure you do not hit API limits during a batch run.
Render Web Page
Capture a full page screenshot of a live URL. Use this for visual regression testing or archival purposes.
Fetch Image URL
Retrieve the public link for a generated asset to embed it directly into an email or a database record.
Set Image Dimensions
Define the exact width and height for the output image to match specific social media or ad platform requirements.
Capture Element
Use a CSS selector to snap a picture of only one specific part of a web page instead of the whole screen.
Verify Image Status
Check if a large HTML render is complete before attempting to download the resulting file.
Update Render Settings
Adjust the browser viewport or device emulation settings before triggering a new image capture.
Delete Generated Asset
Remove an image from the temporary storage to keep the account clean and stay within storage limits.
List Recent Images
Pull a list of the most recent assets created to audit the output of an automated workflow.
Get Usage Quota
Check the remaining credits in the current billing cycle to prevent workflow failures during peak times.
Check HTML to Image Account Usage
Tool to retrieve account usage statistics including hourly, daily, and monthly image creation counts. Use after authenticating to review current usage limits and billing periods.

13 actions · scroll to see them all

Frequently asked questions

Ceven sends your HTML and CSS strings directly to the HTML to Image API. The service renders the code in a headless browser environment, which ensures that modern CSS layouts and web fonts are processed correctly. Once the render is complete, the API returns either a direct image file or a unique ID and URL. Ceven then takes that output and routes it to your chosen destination, such as an S3 bucket, a Google Drive folder, or a messaging app. The process happens in seconds, allowing your agents to generate visual content on the fly based on triggers from other apps in your stack.
Yes, HTML to Image has specific payload limits depending on your subscription tier. If you send an excessively large HTML string with embedded base64 images, the API may return a 413 Request Entity Too Large error. To avoid this, Ceven recommends hosting large images on a CDN and referencing them via URLs in your HTML. This keeps the payload small and ensures faster render times. If you consistently hit these limits, you can use a workflow to split your content or upgrade your plan within the HTML to Image dashboard to accommodate larger documents.
Capturing pages behind a login is complex because the headless browser starts with a clean session. To handle this, you must provide the necessary cookies or authorization headers within the API request. Ceven can be configured to pull these tokens from your secure vault and inject them into the request headers. However, if the site uses complex multi factor authentication or CAPTCHAs, the automated capture will fail. In those cases, it is better to use the HTML to Image tool to render a local HTML copy of the page that you have already fetched using a different authenticated session.
The service primarily supports PNG and JPG formats, which are the industry standards for web assets. You can specify the format in the request parameters when using the Convert HTML to Image action. PNG is recommended for text heavy content or images requiring transparency, while JPG is better for photographs or complex backgrounds to keep file sizes low. Ceven allows you to set these preferences globally in your workflow settings so every image generated for a specific project remains consistent in format and quality without needing to define it every single time.
Images generated by the service are stored on their temporary servers for a limited window. This means the URL provided in the initial response is not a permanent link. If you need to keep the images for long term use, you must use the Get HTML to Image action to download the file and save it to your own storage provider. Ceven can automate this by immediately triggering a save action to Dropbox or OneDrive the moment the image is created, ensuring you never lose an asset due to the automatic cleanup process on the vendor side.
Yes, you can define the viewport dimensions in the API call to simulate different devices. For example, you can set the width to 375 pixels to see how a page looks on a mobile device or 1920 pixels for a desktop view. Ceven makes this easy by providing presets in the action configuration. You can run a single workflow that captures the same URL across three different screen sizes and saves them as a set, which is ideal for quality assurance teams who need to verify responsive design across multiple breakpoints automatically.
The service has a default timeout period. If a page is extremely heavy or the server is slow, the request might time out before the screenshot is taken. You can adjust the wait time parameter to give the page more time to execute JavaScript and load external assets before the capture triggers. If you are dealing with single page applications that load content asynchronously, we suggest adding a small delay in your Ceven workflow to ensure the DOM is fully populated before calling the render action to avoid capturing a blank loading screen.
Billing is typically based on the number of images generated per month. Each single render or screenshot counts as one credit. You can use the Check Account Usage action in Ceven to monitor your consumption in real time. This is particularly useful for developers who are testing new workflows and want to avoid unexpected overage charges. By setting up a Ceven alert, you can receive a notification when your usage hits eighty percent of your monthly limit, allowing you to either optimize your requests or scale your plan before the service stops processing images.

Alternatives to HTML to Image

Other tools that solve a similar problem. Ceven supports these too, so you can switch or run more than one at once.

Puppeteer logoPuppeteerBrowserless logoBrowserlessScreenshotAPI logoScreenshotAPI

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Plug Ceven on top of the tools you already run. Connect HTML to Image and the rest of your stack, describe the outcome, and its agents handle the work end to end, days of it in minutes.

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