Create a responsive image pack from a synthetic image
Kestrelspan Tools
Try a synthetic 1600×1200 gradient generated offline and supplied inline. Create a ZIP with a manifest and srcset snippets, with up to 6 WebP/JPEG variants at 480, 960 and 1600 px without upscaling. $0.03 per successfully packaged source image, platform usage included. No URL fetching or external image downloads.
Input
Output fields
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The Responsive Image Pack Builder (Beta) Actor is ready to run with the inputs already set for "Create a responsive image pack from a synthetic image". Sign up or log in and you'll land in Apify Console with a copy of this exact task.
Start the "Create a responsive image pack from a synthetic image" task
The Responsive Image Pack Builder (Beta) Actor will start running based on the input automatically. You can also change all the input fields, like optional small synthetic/api inline images, to match your specific use case.
Receive the "Create a responsive image pack from a synthetic image" output
Monitor the progress in real time. You will be notified as soon as your dataset is complete and ready for review. Each result includes data such as status, requested, successful, and more.
Integrate into your workflow
The final output is delivered in JSON, CSV, or Excel format, ready to be plugged into your workflow. You can also run the "Create a responsive image pack from a synthetic image" task via API.

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Open the completed run's default key-value store and download OUTPUT.zip. MANIFEST.json lists variants and sizes; SUMMARY.json reports successes and failures. The dataset is only a batch summary, not the image ZIP.
No. The source is a synthetic gradient, so sizes do not predict photo results. The published full-size JPEG was larger than its source. Inspect your own outputs for size, sharpness and transparency before deployment.
The listed fee is US$0.03 per successfully packaged source image, not per variant, with platform usage included. This example uses one source. Check the active Store price before running.
No. The Actor prepares a portable ZIP and relative srcset strings. Upload the extracted images to your own hosting, use only filenames and widths present in the manifest, and set HTML sizes to match your layout.