frogConvert

JPEG files

The dominant photographic format, using discrete cosine transform compression that discards detail the eye is least likely to notice. It has no transparency, and every re-save loses a little more.

Extension
.jpg
MIME type
image/jpeg
Category
image
Can convert from
Yes, via ImageTracer, the browser canvas, pdf-lib
Can convert to
Yes, via the browser canvas, pdf.js, ImageMagick

Convert JPEG to another format

Convert another format to JPEG

Converting JPEG files privately

frogConvert runs the conversion engines in your browser as WebAssembly, so a JPEG file is read, converted and saved without ever being sent anywhere. That matters most for the files people are least willing to upload: contracts, medical records, unreleased work, anything under an NDA.

It also means the converter works offline. Once the page has loaded, you can turn off the network and keep converting.

Common questions

Can I open a JPEG file without installing anything?
Yes. frogConvert reads JPEG files directly in the browser and converts them to a format you already have software for. Nothing is installed and nothing is uploaded.
Are my JPEG files uploaded to a server?
No. Every conversion runs locally in your browser through WebAssembly. There is no server to send files to, and the app keeps working with the network disconnected.