Image Format Converter

Convert file formats, without size-target compression.

Convert only · preserves image dimensions. Output file size may change across formats.

JPG · PNG · WebP • Up to 1,200 per batch

0 files selected

Your selected files will appear here.

Private by default: your images are processed locally in this browser. Use smaller batches on lower-memory devices.

Your settings 100% local processing

Convert to

Original pixel dimensions are kept. The output file size and metadata can change with format.

Desired maximum size for each imageSelect images

Maximum size

Unit

Target size slider 60% of reference image

Add images to set a target. The slider uses the first selected image as a reference; the KB/MB target applies to each image.

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Quality impact preview

Choose an image to see an estimated encoding quality and output size.

Encoder quality is not a percentage of visible quality preserved. Compare outputs before publishing.

Maintain aspect ratio by default. Advanced resize modes are opt-in.

Maximum width (px)

Maximum height (px)

Resize mode

Never enlarge smaller images

JPG transparency background

Applied when exporting JPG from transparent images

Only the selected tool's settings are applied.

Ready when you are

Before & after