Image converter

Convert between JPG, PNG and WebP, and open HEIC files from an iPhone. Set a size limit in the same pass.

Choose an imageor drag it here, or paste it

JPG, PNG, WebP and HEIC. Your file is processed on your device.

How do I convert an image to another format?

To convert an image, add it below and choose the output format. FileBelow reads JPG, PNG, WebP and HEIC, and writes JPG, PNG or WebP. If the destination also has a file size limit, set it at the same time and both requirements are met in one pass.

Which format should you convert to?

Start with the destination. If a form names a format, use that one — being right about compression will not help you if the upload is refused.

If the choice is yours, the question is whether the image is a photograph. If it is, JPEG is universally accepted and WebP is around a third smaller at the same visual quality. If it is a logo, a diagram, a screenshot of text or anything with transparency, PNG keeps edges crisp and WebP does the same in a smaller file. JPEG has no transparency at all and blurs sharp boundaries, so it is the wrong choice for graphics even though it is the smallest.

Formats FileBelow reads and writes

Format	Read	Write	Notes
JPG / JPEG	Yes	Yes	Photographs. No transparency.
PNG	Yes	Yes	Graphics and transparency. Lossless.
WebP	Yes	Yes	Smaller than both, with transparency.
HEIC / HEIF	Yes	No	iPhone photos. Convert to JPG to upload.
GIF (still)	Yes	No	Animated GIFs are rejected, not flattened.

AVIF is not offered because browsers cannot reliably encode it — decoding and encoding are separate capabilities, and the encoder is the one that is missing.

Common questions

Is the converter free?

Yes, with no sign-up and no limit.

Are my files uploaded to a server?

No. Conversion happens on your device. Even HEIC, which browsers cannot read natively, is handled locally — FileBelow downloads a decoder to your browser rather than sending your photo anywhere.

Will converting reduce quality?

Converting into a lossy format (JPEG or WebP) discards some information. Converting a lossy file into another lossy format does it twice, because the first format’s artefacts are treated as real detail by the second encoder. Where you have the original, start from that rather than from an already-compressed copy.

What happens to transparency?

PNG and WebP keep it. JPEG cannot store it at all, so transparent areas become a solid colour — FileBelow composites onto white by default, tells you before you process rather than after, and lets you change the colour in Advanced options.

Can I convert and compress in one step?

Yes, and you should when a form specifies both. Choose the format, set the size limit, and both are satisfied in a single pass rather than by converting and then compressing the conversion.