Image Format Converter uses the HTML canvas API to re-encode images in PNG, JPG, or WebP format. For JPG and WebP, a quality slider (60–100%) controls compression. The tool shows the original file size and estimated output size before you download.
Yes. JPG is a lossy format, so some image detail is discarded during compression. The quality slider lets you balance file size against visual quality — converting PNG to PNG (or any lossless-to-lossless path) keeps quality identical.
GIF files can be uploaded, but the tool renders only the first frame of an animated GIF and converts that single frame to a static image.
WebP generally produces smaller files than JPG at similar visual quality, and supports transparency like PNG. JPG has broader compatibility with older software and devices.
Yes. JPG doesn't support an alpha channel, so transparent areas are filled with a solid background color (typically white) during conversion.
The current version converts one image at a time so you can review the size and quality of each output individually.
For JPG and WebP, it controls the compression level passed to the canvas encoder — higher values mean less compression and larger files, lower values mean more compression and smaller files.
WebP often reduces file size significantly compared to JPG or PNG at similar quality, which can improve page load times if your website and CDN support serving WebP images.
