Reduce the file size of JPG, PNG and WebP images with adjustable quality. Your images never leave your device.
Image Converter
Convert JPG, PNG, WebP, GIF and BMP images to JPG, PNG or WebP. AVIF and HEIC work when your browser can open them. No uploads.
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Drag & drop your images here
or
JPG, PNG, WebP, GIF, BMP, and AVIF or HEIC if your browser can open them. Up to 20 images, 25 MB each.
Tip: you can also paste an image with Ctrl + V
Images (0)
Conversion settings
Runs entirely in your browser. Your files and text are not uploaded.
How to use Image Converter
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Step 1: Add your images
Drag and drop up to 20 images, or choose them from your device.
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Step 2: Pick the new format
Choose JPG, PNG or WebP, and adjust the quality or the background for transparent areas if needed.
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Step 3: Convert and download
Press “Convert images” and download each file or a ZIP of all of them.
How the converter works
The converter opens each image with your browser's own decoder, draws it on a canvas and saves it again in the format you choose. The width and height stay the same, unless an image is too large for your browser (see the limitations). Everything happens on your device; the images are not uploaded.
What changes when you convert
- To JPG: JPG cannot store transparency, so transparent areas are filled with a colour you choose (white by default). JPG is lossy: at 90% quality the difference is hard to see, but every save discards a little detail, so keep your originals.
- To PNG: PNG is lossless, so the pixels are saved exactly as they were decoded and transparency is kept. Converting a JPG to PNG does not bring back detail the JPG already lost, and the PNG file is usually several times larger.
- To WebP: WebP keeps transparency and is usually smaller than both JPG and PNG at a similar quality. Every current browser shows WebP, but some older programs cannot open it.
Before you convert, the list shows each image's current format and size, and notes when an image has transparent areas that will be filled, when it is already in the chosen format and when an animation will keep only its first frame.
Which format should you choose?
- Photos for sharing, email or upload forms: JPG.
- Screenshots, logos and graphics with sharp edges or transparency: PNG.
- Images for your own website: WebP, which usually gives the smallest files.
- Older software, printers or forms that reject WebP: JPG or PNG.
HEIC and AVIF photos
iPhones save photos as HEIC by default, and some apps and cameras save AVIF. The converter can only read these formats when your browser can open them. AVIF opens in current versions of Chrome, Edge, Firefox and Safari. HEIC opens in Safari 17 and later on iPhone, iPad and Mac, but not in Chrome, Edge or Firefox (checked October 2026); there you see a message instead. On an iPhone you can avoid HEIC for new photos with Settings › Camera › Formats › Most Compatible.
Privacy
The conversion runs in JavaScript on your device. Metadata such as the camera model, date and GPS location is not copied to the converted files, and photos are turned upright according to their orientation tag before they are saved.
Limitations
- Animated GIF, WebP and PNG files become a still image of their first frame.
- AVIF and HEIC files can only be converted in browsers that can open them. When yours cannot, the tool says so and the file is not added.
- Very large images are scaled down to fit your browser's limits: about 16.7 megapixels on phones and tablets and about 67 megapixels on computers, with at most 16,384 pixels on a side. The list shows "Will be scaled down" before you convert.
- Images bigger than 200 megapixels (64 megapixels on phones and tablets) cannot be opened.
- Colours are converted to sRGB, so photos with a wider colour profile (such as Display P3) can look slightly less saturated.
- WebP output needs a browser that can save WebP. Chrome, Edge and Firefox can; Safari cannot (checked October 2026), so the WebP option is disabled there.
- Metadata (EXIF, XMP and embedded colour profiles) is not copied. Only JPG, PNG and WebP files can be created; TIFF files cannot be opened.
Frequently asked questions
Are my images uploaded to a server?
No. Your browser reads and converts the images on your own device, and nothing is sent to our server. You can use the converter for private photos and documents.
Does converting PNG to JPG reduce quality?
Slightly. JPG is a lossy format, so some fine detail is discarded when the file is saved. At the default 90% quality this is hard to see in photos, but sharp text and flat graphics can show faint smudges around edges. Transparent areas are filled with the background colour, because JPG cannot store transparency.
Can I convert HEIC photos from my iPhone to JPG?
Yes, in a browser that can open HEIC: Safari 17 or later on an iPhone, iPad or Mac. Chrome, Edge and Firefox cannot open HEIC files, and the tool tells you when that is the case. You can also set your iPhone to save new photos as JPG under Settings › Camera › Formats › Most Compatible.
Why is my converted PNG much bigger than the JPG?
PNG stores every pixel without loss, while JPG throws away detail that is hard to see. For photos this makes PNG files several times larger. Use PNG when you need transparency or exact pixels, and JPG or WebP for photos.
What happens to transparent backgrounds?
PNG and WebP keep transparency. JPG cannot store it, so transparent areas are filled with the background colour you choose, white by default. The list marks images that have transparent areas before you convert.
Can I convert several images at once?
Yes. Add up to 20 images, mixing formats if you like. They are all converted to the format you choose, and you can download them one by one or together as a ZIP file.
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