Image converter

How to convert an image

1. Add your images. Drag files of any format onto the box above, tap Choose files, or paste an image from the clipboard. Mixed formats are fine.
2. Choose the output. JPG for photos, PNG for transparency and exactness, WebP for websites, PDF for documents. Set the quality or the page size if you like.
3. Download. Save each file with the button next to it, or tap Download all for a zip, or one PDF when PDF is the output.

Files in another format are listed with a short reason and a link to the right converter, and the rest of the batch carries on.

Which format should I choose?

What this converter reads

HEIC is the format iPhones have used for photos since iOS 11 in 2017. The name stands for High Efficiency Image Container: it is a HEIF image whose picture is compressed with HEVC, the codec iPhones also use for video. A HEIC photo looks the same as a JPEG but takes noticeably less space; Apple lists about 3 MB for a 24 MP photo in HEIF and 4.8 MB in JPEG.

Apple devices open HEIC everywhere, but plenty of websites, older Windows PCs, printing services and online forms still expect JPG, PNG or PDF.

WebP is an image format Google introduced in 2010 for the web. It compresses photos about a quarter to a third smaller than JPEG at the same visual quality, and unlike JPEG it can also hold transparency and animation, and compress losslessly like PNG. Every current browser displays it, which is why so many websites now serve WebP, and why the picture you just saved from a website is a .webp file.

The trouble starts away from the browser: an older photo editor, an upload form that only accepts JPG and PNG, an office document, a printing service or a photo frame may not take it. That is when you need to convert it.

AVIF is a newer image format based on the AV1 video codec, published by the Alliance for Open Media in 2019. It compresses photos noticeably smaller than JPEG and WebP at the same quality, and it supports transparency, HDR and animation. Chrome, Firefox and Safari (since Safari 16, in 2022) all display it, so it increasingly turns up when you save an image from a website.

Most things outside a browser still do not open it: older image viewers, many photo editors, office programs, upload forms and printing services expect JPG or PNG.

GIF and BMP are older formats: GIF for simple animations and graphics with up to 256 colors, BMP for uncompressed Windows bitmaps. Both are read, and an animated GIF gives its first frame. SVG drawings are rendered at the width you type, 1024 pixels for small icons by default.

What the output keeps, and what it leaves out

• Kept: the full picture at its original size, the right way up. PNG and WebP keep transparency; JPG and PDF place it on white.
• Left out: the original camera details, date taken and location of re-encoded photos. Files returned unchanged keep their metadata. Animations keep their first frame only.
• Already there: a file that is already in the chosen format is handed back as it is, which is what happens on iPhone when Safari converts HEIC to JPEG before the page sees it.

Your images stay on your device

Your browser decodes most formats itself; for HEIC it downloads the open-source libheif decoder when you add the first HEIC. Files are read from your disk, converted in memory and saved to your downloads folder. No server ever receives your files, and nothing is kept once you close the page. It is the same promise we make in our iPhone app, PrunePic: it reviews your photos on the iPhone itself and never uploads them.

One format at a time

Each pair has its own page with the details of that conversion: HEIC to JPG, HEIC to PNG, HEIC to PDF, JPG to PDF, PNG to PDF, WebP to JPG, WebP to PNG, PNG to JPG, JPG to PNG, AVIF to JPG, AVIF to PNG, SVG to PNG, PNG to WebP and JPG to WebP.