Convert PEF to JPG Online
Turn Pentax PEF files into full-resolution JPEGs right in your browser — free, no upload, no watermark, no software to install.
How to convert PEF to JPG
- Open OpticRaw and drag your PEF file(s) into the window.
- Wait a few seconds while the RAW is decoded — your camera's white balance and a natural base look are applied automatically.
- Click Export, choose JPEG and quality, and save. That's it.
Convert many PEF files at once
Need a whole shoot converted? Open all the files, switch to the grid view (press G), select the photos you want and click Export — every file is rendered to JPEG in one batch. On Chrome and Edge you can write them straight into a folder of your choice, and even stamp a watermark on all of them.
Why not just use the camera JPEG?
PEF is the RAW format from Pentax K-3 Mark III, K-1 Mark II, KF, K-70 and other Pentax DSLRs. PEF is Pentax’s native RAW format. Many Pentax bodies can also shoot DNG — both open here without any extra software. Converting through OpticRaw lets you fix exposure, recover skies and correct white balance before the JPEG is baked — something no simple file converter can do.
More than a converter
OpticRaw is a full Lightroom-style editor: tone curve, HSL color mixer, color grading wheels, film-simulation presets, masking and crop. If you want to do more than convert, edit your PEF files online first.
Convert other RAW formats to JPG
ARW to JPG · CR3 to JPG · CR2 to JPG · ORF to JPG · NEF to JPG · DNG to JPG · RAF to JPG · RW2 to JPG
Frequently asked questions
How do I convert PEF to JPG for free?
Open OpticRaw in your browser, drop the PEF file in, and click Export — you get a full-resolution JPEG. Free, no watermark, no account, no software to install.
Can I convert multiple PEF files at once?
Yes. Open several files, press G for the grid view, select the photos (Cmd/Ctrl+click or the checkboxes) and click Export — all of them are converted in one go, straight into a folder you choose.
Will the JPG keep the original resolution?
Yes — the JPEG is rendered from the full RAW resolution by default. You can also set a smaller long-edge size and JPEG quality (30–100) in the export dialog.
Are my PEF files uploaded to a server?
No. The conversion happens entirely on your device using LibRaw compiled to WebAssembly. Files never leave your computer.
Can I fix exposure or colors before converting?
Yes — OpticRaw is a full RAW editor. Adjust exposure, white balance, tone curve or apply a film preset first, then export. Or export immediately with no edits.
Works in Chrome, Edge, Firefox and Safari. Your photos are processed on your device and never uploaded.