Why choose PNG?
PNG avoids another lossy compression step. It is useful for screenshots, annotations and a workflow that needs consistent pixels.
What changes in this conversion?
A PNG usually takes more storage than the original JPEG. Conversion cannot restore details already lost to JPEG compression or create transparency where there was none.
How to convert JPG to PNG
- Choose a still JPG file with the file picker, or drag it into the workspace.
- Select PNG as your output format. Keep original dimensions for an unchanged pixel grid. PNG has no quality slider because its encoding is lossless.
- Choose Convert, then download your file. For a batch, Download ZIP collects successful results.
Limits and browser compatibility
Still images use native decoding and encoding where supported, with a local WebP encoder fallback. Output is 8-bit sRGB; original metadata, HDR range and wide-gamut precision are not archived. Standard inputs are capped at 100 MB, 50 MP on desktop and 16 MP on mobile or low-memory devices, subject to memory limits.
Does my file leave my device?
No. The worker reads your file locally and creates your download in browser memory. Original metadata is always removed. The output uses 8-bit sRGB pixels.
Can I convert a batch?
Yes. Select up to 24 files within the 256 MB batch limit. Each file is processed separately, so a failed image does not prevent the others from completing.