Supported formats
Compress JPEG, PNG, WebP, and AVIF files from the same local queue.
Free Batch Image Compressor - Secure, Local & No Uploads
Shrink image sets for SEO, ecommerce, docs, and landing pages without uploads. Runs entirely in your browser with no uploads.
Drop images, or click to choose
Why choose BatchTool Image Compressor?
Format-aware controls
JPEG/WebP/AVIF expose quality; PNG exposes Oxipng level, interlace, and alpha optimization.
Batch export
Preview individual results, download one image, or export all finished files as a ZIP.
Reduce image weight before publishing.
Smaller images can improve page load time, Core Web Vitals, product gallery speed, and crawl efficiency. BatchTool keeps the workflow local so teams can compress image batches before uploading them to a CMS, ecommerce catalog, documentation site, or landing page.
Best use cases for Image Compressor
SEO and Core Web Vitals
Reduce image transfer weight before publishing blog posts, landing pages, documentation, and media-heavy pages.
Ecommerce catalogs
Prepare many product photos for storefront grids while keeping visual quality consistent across the batch.
Content operations
Compress screenshots, campaign images, and editorial assets before uploading them to a CMS or asset library.
Frequently asked questions
What image formats can BatchTool compress?
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BatchTool compresses JPEG, PNG, WebP, and AVIF images in the browser. JPEG, WebP, and AVIF use quality-based encoding, while PNG uses Oxipng optimization settings.
Are my images uploaded during compression?
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No. Compression runs locally in your browser with WebAssembly workers, so source images and compressed results stay on your device.
Which compression settings should I use for web performance?
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For JPEG, WebP, and AVIF, start with quality around 0.55 to 0.75 and compare previews. For PNG, increase the optimization level and enable alpha optimization when transparent pixels matter.