Useful things, gathered together

Everyday file tools in your pocket.

Compress and convert images, make PDFs, and create QR codes — quickly and privately on your device.

App Store · Google Play

Android & iOS · On-device tools

Simple by design.

Compress images

Convert JPG & PNG

Images to PDF

Create QR codes

Image compressionReduce file size while keeping the quality you need.

Format conversionConvert images between JPG and PNG.

PDF creationCombine selected images into one shareable PDF.

QR creationTurn text or a link into a downloadable QR code.

Your files stay on your device.

Core file processing happens locally. KCREW does not upload your selected images or generated documents to its servers. Optional non-personalized LevelPlay rewarded ads unlock eligible batch processing in supported regions. On iOS, declining tracking keeps all tools available without an ad. Region checks and advertising use separate network connections; see the privacy policy.