Turn JP2 images into WebP. It is converted in your browser, so the file never leaves your device.
Drop JP2 files here
or choose from your computer paste with Ctrl V
from Photos or Files
Ready · other file types work too0 bytes uploaded, ever
Drop JP2 (JPEG 2000, J2K) files onto the box above, or click it to choose them. ToAny reads the file's contents to detect the type, so a wrong extension does not matter.
Press Convert. Open Options first if you want to change the defaults. The work happens in this tab.
Save the WebP, or download everything as one ZIP if you converted several files.
The JP2 to WebP converter is part of this page and runs inside your browser. Your images are never sent to ToAny or to anyone else.
Nothing has to travel to a server and back, so the conversion starts the moment you press Convert, even on a slow connection.
No sign-up, no email address and no watermark. Add several files and download them together as a ZIP.
JP2 does not open in Chrome, Firefox or most apps. WebP is smaller than JPG or PNG at similar quality and keeps transparency. JP2 is at home in scanned archives, medical images and digital cinema; WebP is the usual choice for images on websites.
The defaults suit most files. Under Options you can set the quality, aim for a target file size and resize the result.
The WebP encoder is a WebAssembly module that downloads the first time you convert to WebP and is cached afterwards. JPEG 2000 files with a transparency channel, extra components or subsampled colour are refused for now; greyscale and ordinary colour files convert. The decoder is a WebAssembly module that downloads the first time and is cached.
JPEG 2000 replaces JPEG's blocky compression with wavelets, giving cleaner results at high compression and a true lossless mode. It never displaced JPEG on the web, but libraries and archives, DICOM medical images and cinema distribution use it. Safari is the only major browser that shows it.
Opens in Safari, Preview, Photoshop and medical, archive and cinema software; Chrome and Firefox do not display it
JP2 converterWebP is Google's image format for the web. It is typically a quarter to a third smaller than JPG or PNG at similar quality and supports both transparency and animation. Browsers handle it well; older editors, printers' portals and some messaging apps do not.
Opens in All current browsers; many older desktop apps and upload forms do not accept it
WebP converter| JP2JPEG 2000 image | WEBPWebP image | |
|---|---|---|
| Stands for | JPEG 2000 | WebP |
| Type | Raster image | Raster image |
| Compression | Lossy or lossless (wavelet) | Lossy or lossless |
| Transparency | Yes | Yes |
| Animation | No | Yes |
| Introduced | 2000, by the Joint Photographic Experts Group | 2010, by Google |
| Opens in | Safari, Preview, Photoshop and medical, archive and cinema software; Chrome and Firefox do not display it | All current browsers; many older desktop apps and upload forms do not accept it |
| Best for | Scanned archives, medical images and digital cinema | Images on websites |
| File extension | .jp2, .j2k, .j2c, .jpc | .webp |
No. The JP2 to WebP conversion runs inside your browser, on your own phone or computer. The file is not sent to ToAny or to anyone else.
A little: ToAny writes WebP in its lossy mode, so a small amount of detail is traded for a much smaller file. At the default setting the difference is hard to notice. You can raise the quality under Options; there is no lossless setting.
Yes. Add as many as you like, convert them together and download each result or all of them as one ZIP.
The steps are the same everywhere because ToAny runs in the web browser: open this page in a current version of Chrome, Edge, Safari or Firefox, add the JP2 file, press Convert and save the WebP. There is nothing to install.
Pictures of up to 120 megapixels are accepted (for example 12,000 by 10,000 pixels); a larger one is refused with a message. Beyond that the limit is your device's memory, since nothing is uploaded; a computer copes with large files better than a phone.