Can I convert PEF to WebP on iPhone, Android, Mac or Windows?

Yes. ConvertPixels works in Safari, Chrome, Edge and Firefox on any device, so you can convert PEF to WebP on your phone or computer without installing an app.

Is there a free PEF to WebP converter with no sign-up?

Yes, this one. Converting PEF to WebP on ConvertPixels is free, with no sign-up, no watermark and no daily cap. Convert up to 30 files per batch, each up to 50 MB.

Can I convert PEF to WebP without losing quality?

WebP is a lossy format, but our default quality setting (85) keeps the result visually identical to the original. Turn quality up in the options for maximum detail, or down for a smaller file.

Can I batch convert PEF to WebP?

Yes. Add up to 30 PEF files and convert them in one batch. You can even choose a different output format for individual files, then download them separately or together as a ZIP.

Is it safe to upload PEF files to ConvertPixels?

Yes. Uploads use an encrypted connection and are processed automatically - nobody views them. Your originals are deleted straight after conversion and the results within an hour, or instantly if you click "Delete from server now".

Convert

PEF to WebP Converter

Convert PEF images to WebP online in seconds - free, with no sign-up and no watermark. Batch convert up to 30 files and download them together as a ZIP.

Free
No sign-up
No watermark
Private by design

Choose filesor drag and drop files hereUp to 30 files · 50 MB each

Image Converter

How to use it

1
Drop your PEF files onto the converter
2
Press Convert to turn them into WebP
3
Download your WebP images one by one or as a ZIP

PEF to WebP

Why convert PEF to WebP?

The main difference: PEF is an unprocessed sensor data format, while WebP is a lossy or lossless format. WebP can have a transparent background, PEF can't.

Develop RAW into a ready-to-use photo

A PEF file holds the raw readings from the camera sensor, not a finished picture. Converting it to WebP applies the camera's colors and gives you a normal photo you can share, print or post right away.

Smaller files, faster uploads

WebP supports lossy compression, so your file typically ends up a fraction of the PEF size - quicker to attach to an email, upload to a form or load on a web page.

Supports transparent backgrounds

WebP can hold a transparent background. Convert your image first, then cut out the background or place it on top of other designs.

Lighter images for your website

At the same visual quality, WebP files are noticeably smaller than JPG or PNG. Lighter images mean faster pages, better Core Web Vitals and a small boost for SEO.

PEF vs WebP: what's the difference?

Property	PEF	WebP
Compression type	Unprocessed sensor data	Lossy or lossless
Transparent background	No	Yes
Animation	No	Yes
Where it opens	None (needs a RAW editor)	All modern browsers; some older apps and upload forms don't accept it
Used for	Straight-from-camera photos for editing	Fast-loading website images

What is a PEF (camera RAW) file?

PEF is the camera RAW format of Pentax - Pentax DSLRs (newer models can also save DNG). Instead of a finished photo, a RAW file stores the unprocessed data straight from the camera's sensor.

That gives photographers maximum room to adjust exposure, white balance and color afterwards, but RAW files are large (often 20-60 MB) and need special software to view. Converting to JPG produces a normal photo you can share right away.

How to open a PEF (camera RAW) file

Pentax Digital Camera Utility opens PEF files, and Adobe Lightroom, Photoshop (Camera Raw), Capture One, darktable and RawTherapee support them too. Mac Photos and Preview open most RAW formats; on Windows, the free Raw Image Extension adds support to the Photos app. Without any of these, convert PEF to JPG online.

Extension: .pef
Made by: Pentax cameras
Contains: Unprocessed sensor data
Best for: Editing straight-from-camera photos

What is a WebP file?

WebP is an image format Google introduced in 2010 to make websites load faster. It can compress photos lossily like JPG, or graphics losslessly like PNG - usually with 25-35% smaller files - and it supports transparency and animation too.

That's why so many images you save from websites, including Google Images, arrive as .webp files. Browsers love them; older software and many upload forms still don't.

How to open a WebP file

Chrome, Edge, Firefox and Safari display WebP directly - drag the file into a browser window. Windows 10/11 Photos and Paint and Mac Preview (Big Sur and later) open it as well. If an app or website rejects it, convert it to JPG or PNG.

Extension: .webp
Compression: Lossy or lossless
Transparency: Yes
Best for: Fast-loading website images