alltools.

Image Format Converter

Convert between PNG, JPG, and WebP instantly. Everything happens on your device — nothing is uploaded.

Drag & drop an image here, or click to browse PNG, JPG, WebP, or GIF · Max file size: 50 MB

Conversion happens instantly on your device. Your images are never uploaded anywhere.

Which format should you actually use?

PNG — best for logos, screenshots, graphics with transparency, or anything with sharp edges and text. Lossless, but large.

JPG — best for photos. Lossy compression that photos hide well (smooth gradients mask compression artifacts), but text and sharp lines look blurry or blocky.

WebP — usually the best of both: supports transparency like PNG, compresses like JPG, and typically produces noticeably smaller files than PNG or JPG at similar quality. The tradeoff is it's a newer format — very well supported now, but check compatibility if you're working with older systems or specific software requirements.

Rule of thumb: if the image has text, logos, or hard edges, start with PNG or WebP. If it's a photo, JPG or WebP. If file size matters and you don't need legacy compatibility, WebP wins most comparisons.

Frequently asked questions

Why did my transparent PNG get a white background when I converted to JPG?

JPG doesn’t support transparency, so this tool fills the transparent areas with white before saving. If you need to keep transparency, convert to PNG or WebP instead.

Why is my converted file bigger than the original?

It depends on the formats. Converting a JPG or WebP photo to PNG usually makes the file much larger, because PNG is lossless. Check the size comparison under the preview: it shows whether the new file is smaller or larger. If it’s bigger, try WebP or JPG and lower the quality slider.

Does the quality slider work for PNG?

No. PNG is lossless, so there’s nothing to trade off. The slider only appears for JPG and WebP, where lower quality means a smaller file.

Will converting change my image’s dimensions?

No. The converted image keeps the exact pixel width and height of the original.

What happens to an animated GIF?

Browsers can’t decode GIF animation into a still format, so only the first frame is converted. This tool can open GIFs but can’t create them.

Are my images uploaded anywhere?

No. The conversion runs entirely in your browser, so the image never leaves your device.

Is there a file size limit?

Yes, 50 MB per image.

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