JPG to PNG Converter
Convert a JPG image to PNG format directly in your browser.
This tool runs entirely in your browser. Your files are never uploaded to a server.
Drop a JPG here or click to upload
What this tool does
Converts a single JPG image to PNG format by redrawing it onto a canvas and re-encoding the result, entirely inside your browser.
How to use it
Drop or select one JPG file. Conversion starts immediately, and a ready-to-download PNG appears within a second or two for typical photo sizes.
Worked example
Upload vacation.jpg (2.1 MB) and you get vacation.png ready to download — same pixel dimensions and same visual content, just re-encoded in a different container format.
Why convert to PNG
PNG is a lossless format, so once the JPG's existing compression artifacts are baked into the pixels, converting to PNG locks in that exact pixel data without discarding anything further — useful when a downstream tool or platform requires a PNG file specifically, such as one that supports transparency or expects lossless input.
What changes technically
Conversion doesn't add transparency or restore detail lost to JPG's original compression — it only changes how those existing pixels are stored. The output is typically larger in file size than the source JPG, since PNG's lossless encoding is less compact than JPG's lossy compression for photographic content.
Limitations
Only one file can be converted at a time — there's no batch mode. If the browser can't decode the uploaded file as a valid image, a generic conversion error is shown.
Privacy and processing
The whole conversion runs locally using the Canvas API. Your image is never uploaded to a server.
Frequently Asked Questions
- Is my image uploaded to a server?
- No, conversion happens entirely in your browser — your file never leaves your device.
- Why convert JPG to PNG?
- PNG supports transparency and lossless compression, which is useful for logos, screenshots and graphics with sharp edges.
- Will the file size change?
- PNG files are often larger than JPGs for photos since PNG uses lossless compression.