How do I reduce image size in KB?

Upload one or more images, start compression, and compare the original and compressed file sizes. If the result is still too large, reduce the image dimensions first or choose a lower quality setting when available.

Can I compress JPG, PNG, WebP, and GIF files?

The tool supports common web image workflows including JPG, PNG, WebP, and GIF input. Some formats may be converted to JPG or PNG when the browser cannot preserve the original format safely.

Are my images uploaded to BaseToolbox?

No. Compression runs in your browser, and the selected images are not uploaded to a server. This is designed for private photos, product assets, screenshots, and documents.

Can I compress images without losing too much quality?

Yes. The compressor balances quality and file size for everyday web use. For logos, UI screenshots, or text-heavy images, preview the result before replacing the original file.

Can I batch compress multiple images?

Yes. Add several images at once, compress them in the same session, then download each result or package the compressed files together.

Free Batch Image Compressor for JPG, PNG and WebP

How to use? Read our guide.

Free online tool to compress images. Quickly reduce the file size of JPG, PNG, and WebP files. Supports batch processing, privacy-focused, no uploads required.

Click or drag images to this area to upload

Supports JPEG, PNG, WebP, GIF, etc. Unsupported formats are converted to PNG (to preserve transparency) or JPEG.

Native support: JPEG, PNG, WebP

Upload up to 10 images, max 50MB per file

Operation Panel

Please add images first

Compress images online without uploading files

Use this image compressor when you need smaller photos but do not want to send files to a server. It supports common JPG, PNG, WebP, and GIF workflows, batch processing, and local browser compression for website images, product photos, email attachments, and documentation screenshots.

Common image compression uses

Reduce image size before publishing blog posts, landing pages, and documentation so pages load faster.
Compress photos for email, forms, reports, and office documents where attachment size matters.
Prepare product photos for marketplaces and storefronts without exposing unpublished assets.
Process multiple images in one session and download individual files or a combined archive.

Related image tools

Check image dimensions Convert image format Convert images to PDF

Image compressor FAQ

How do I reduce image size in KB?: Upload one or more images, start compression, and compare the original and compressed file sizes. If the result is still too large, reduce the image dimensions first or choose a lower quality setting when available.
Can I compress JPG, PNG, WebP, and GIF files?: The tool supports common web image workflows including JPG, PNG, WebP, and GIF input. Some formats may be converted to JPG or PNG when the browser cannot preserve the original format safely.
Are my images uploaded to BaseToolbox?: No. Compression runs in your browser, and the selected images are not uploaded to a server. This is designed for private photos, product assets, screenshots, and documents.
Can I compress images without losing too much quality?: Yes. The compressor balances quality and file size for everyday web use. For logos, UI screenshots, or text-heavy images, preview the result before replacing the original file.
Can I batch compress multiple images?: Yes. Add several images at once, compress them in the same session, then download each result or package the compressed files together.