Convert Images Online

How to convert an image

Drop your images onto the panel above, pick the output format under Convert to, and press Convert. Mixed formats in one batch are fine, and everything converts at maximum quality.

Conversion decodes the original back to raw pixels and re-encodes them in the new format. That is why renaming a file from .heic to .jpg does not work: the extension only labels the container, and the bytes inside are genuinely different. It is also why conversion here does not offer a quality slider — the job is to change format faithfully, and if you want smaller files afterwards that is the compressor's job.

Convert HEIC to JPG from an iPhone

Drop the HEIC files onto the panel above and choose JPG. Nothing needs installing, and the photos are not uploaded anywhere.

HEIC is the format iPhones have shot in by default since iOS 11. Apple chose it because it stores a photo at roughly half the size of an equivalent JPG, which is a real benefit until you send the file to someone on Windows, attach it to a web form, or open it in older editing software — at which point it will not open at all.

Converting to JPG solves that permanently, and the quality cost is negligible when the conversion runs at maximum quality as it does here. Decoding uses libheif, the same library professional and open-source tools rely on, compiled to WebAssembly — so iPhone photos convert correctly even in browsers that cannot display HEIC natively. If the destination is a document rather than an image, HEIC to PDF skips a step.

Convert WebP to JPG and PNG

Drop the WebP files and choose JPG for photographs or PNG when the image has a transparent background you need to keep.

WebP is the format you end up with after saving an image from a website, because it is what most sites now serve. Browsers handle it perfectly well; desktop software, print shops, and upload forms frequently do not, which is why this is one of the most common conversions there is.

Choose the target by what the image contains. A photograph is fine as WebP to JPG. A logo, screenshot, or anything with a transparent background should go WebP to PNG instead, because JPG has no alpha channel and will composite the transparency onto a solid colour.

Which format should you convert to?

For photographs that need to open anywhere, JPG. For transparency or crisp graphics, PNG. For a website, WebP. For the smallest possible file, AVIF.

For photographs the decision is mostly about where the file will be opened, and JPG remains the answer whenever you cannot control that. For graphics with hard edges, flat colour, or text, PNG is usually right regardless of destination, because lossy compression is at its worst exactly there — it spends its bit budget on the smooth areas and leaves visible fringing along the edges you care about.

Inputs are wider than outputs: JPG, PNG, WebP, AVIF, GIF, BMP, and HEIC or HEIF from Apple devices go in, and JPG, PNG, WebP, AVIF, and ICO come out. GIF and HEIC are decode-only because browsers cannot write them, so an animated GIF converts to a still image of its first frame.

Does converting an image lose quality?

Converting to PNG is lossless and changes nothing. Converting to JPG, WebP, or AVIF re-encodes the image, but always at maximum quality here, so the result is visually indistinguishable from the original.

What conversion cannot do is undo damage that is already there. Turning a heavily compressed JPG into a PNG preserves its artefacts perfectly and produces a much larger file for no visual gain, because the detail was discarded before you started. Always convert from the best original you have rather than from a copy that has already been through a lossy save.

One conversion does change the image in a way worth knowing about: JPG has no alpha channel, so any transparent area is composited onto a solid background on the way in. A logo meant to sit on any colour should stay PNG or WebP.