Process asset batches before upload
Resize, compress and convert screenshots, product images and content graphics into the format your CMS, storefront or landing page workflow needs.
Free Tool
Image Converter & Optimizer for Smarter Website Decisions
Process multiple browser-readable image files or ZIP image folders with conversion, compression, resize presets, rename controls and ZIP export 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
Review this area to understand whether it is helping or hurting growth.
02
Resize presets
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03
Compression savings
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04
PNG, JPEG and WebP output
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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, rename and tune output
Use presets for web, Shopify, Open Graph, Instagram and thumbnails, then rename outputs and tune JPEG or WebP quality for practical file sizes.
FAQs
Frequently Asked Questions
Quick answers about how this tool works and when to use it.
Yes. It combines batch conversion, resize presets, JPEG/WebP quality controls, transparent background handling and ZIP export in one browser-local workflow.
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.