Convert asset batches before upload
Switch screenshots, product images and content graphics into the format your CMS, storefront or landing page workflow needs.
Free Tool
Image Converter for Smarter Website Decisions
Convert multiple browser-readable image files or ZIP image folders into PNG, JPEG or WebP for website, store and content workflows without uploading files to a server.
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What It Checks
Focus Areas for This Tool
These are the signals I would review manually when deciding what needs fixing first.
01
Batch image upload
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02
ZIP folder support
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03
PNG, JPEG and WebP output
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04
Resize and background controls
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Optimization Guide
How This Tool Helps Before Publishing
A little context makes the numbers more useful. Use these notes to understand where this tool fits inside content, SEO and website reviews.
Preserve ZIP folder structure
Upload a ZIP with nested image folders and the converted ZIP keeps the same relative paths with updated file extensions.
Keep conversion local
Images are rendered through browser canvas, so private visual assets can be converted without sending them to a server.
Resize and tune output
Resize by percent, fixed dimensions or a fit box, then use JPEG and WebP quality controls to balance image quality with file size.
FAQs
Frequently Asked Questions
Quick answers about how this tool works and when to use it.
Yes. You can select multiple image files or upload a ZIP that contains image files, then download individual results or a converted ZIP.
Yes. If the ZIP contains paths such as images/funny/photo.jpg, the converted ZIP keeps that folder path and changes only the output extension.
It can export browser-readable source images as PNG, JPEG or WebP using your browser's canvas support.
No. The conversion runs locally in your browser and the generated output is downloaded from your device.
PNG and WebP can keep transparency. JPEG does not support transparency, so transparent areas are flattened onto the selected background color.
It supports image types your browser can load into canvas. Very large or unsupported files may fail in older browsers.