Free Image Compressor Online
Image bytes and filenames are processed locally and are not sent to BatchWebP.
Choose an output format, set a quality or target KB limit, then compare the result before downloading.
Choose a preset or set your own conversion rules.
Format note: PNG export is lossless, so Quality and Target KB may not reduce its size. Resize dimensions or choose WebP/JPG when a strict file limit matters.
Adjust Quality
Original:
Preview:
Compress images without uploading them
Add JPG, PNG, WebP, or AVIF images, choose WebP, JPG, or PNG output, then set a quality level, scale, or target KB size. Processing stays in this browser tab, so source images and filenames are not sent to BatchWebP.
Choose the right output
Use WebP for most websites, JPG for email and older publishing tools, and PNG when transparency or lossless edges matter. PNG quality cannot be reduced by the browser encoder, so resize dimensions or switch formats for strict file-size limits.
Target a file-size limit
Enable Target KB before adding files. BatchWebP tests several quality settings and chooses the highest-quality result it can find under the target. Very detailed or oversized images may need a smaller Size setting as well.
Read the target-size guide or use the private compression workflow.