AutoConverter
KOENJA

Pick a file and your browser converts it right away.Most tools never send your files to a server.

Every tool finishes the conversion on your own device.Nothing is uploaded, so there is no wait.

Quick convert

Save as

or drag them here

Several at once · Files stay on your device

Images 5

PNG to JPGTransparent areas are filled with whiteImage converterConvert to JPG, PNG, or WebP — you pickHEIC to JPGOpen iPhone photos anywhereResizeSet width and height, keep the ratioCompressChoose a quality level and re-encode

Audio and video 2

Video to MP3Pull just the audio out of a videoAudio converterConvert to MP3 or WAV · M4A goes in too

PDF 5

Merge PDFsCombine PDFs in any order you chooseSplit a PDFPick a page range and save it separatelyCompress a PDFRecompress the photographs inside itPDF to imagesSave every page · choose JPG or PNGImages to PDFBundle several images into one document

Why uploads are not needed

Browsers already handle image conversion and PDF editing.Skip the upload and download, and conversion finishes at once.Your files never leave your device.

It keeps working with your connection switched off.Nothing reaches a server, so nothing needs deleting.

File you pickYour device
ConversionYour device
Sent over the internetNone
Kept on a serverNone
ResultSaved to your device