Guides
Practical help for choosing dimensions, file formats and compression settings.
Resize images without stretching
Choose a maximum width and height while keeping the original proportions.
Choose JPG, PNG or WebP
Understand transparency, compression and format tradeoffs before converting.
Compress images and check the real savings
File size depends on the source image, dimensions, format and chosen quality.
Download a batch as individual files or ZIP
Use separate result cards or one archive for all successful outputs.
Transparency, orientation and metadata
Know which properties change when you export an image.
How local image processing works
Your browser decodes and encodes images without a server upload.