JPG to PNG Converter
Convert JPG images to PNG in your browser. Free, no signup, no upload.
How It Works
Select a JPG file and click Convert. The PNG image is generated in your browser using the Canvas API. No file is ever uploaded to a server.
Why Convert JPG to PNG?
PNG uses lossless compression, so the converted image will not lose any further quality. PNG also supports transparency, which JPG does not. Converting to PNG is useful for editing, layering in design tools, and preserving image quality across multiple saves.
JPG vs PNG
| JPG | PNG | |
|---|---|---|
| Compression | Lossy | Lossless |
| Transparency | No | Yes |
| File size (photos) | Smaller | Larger |
| Best for | Photographs | Editing, logos, graphics |
Convert JPG to PNG in Bulk, Without Uploading
The conversion is done on a canvas in your browser, so photos and screenshots are never transmitted. There is no daily quota and no per-file charge.
Batch conversions are limited by your device's memory rather than a free-tier file count, so large groups of images convert without hitting an upload ceiling.
Frequently Asked Questions
How do I convert a JPG to PNG?
Select a JPG or JPEG file and click Convert to PNG. The tool redraws the image on a canvas and generates a PNG, showing a preview. Click Download PNG to save it with the same name and a .png extension.
Is the conversion lossless?
PNG uses lossless compression, so no further quality is lost when converting. Note that a JPG has already discarded some detail, and converting cannot restore what the original JPG removed — it simply preserves the current image without adding new loss.
Does the PNG support transparency?
PNG supports transparency, but a JPG has no transparent areas to begin with, so the converted PNG will be fully opaque. The benefit of PNG here is lossless quality for further editing rather than added transparency.
Are my images uploaded to a server?
No. The conversion happens entirely in your browser using the Canvas API, so your image never leaves your device and nothing is uploaded. It also works offline once the page has loaded.
Will the PNG file be larger than the JPG?
Usually yes. For photographs, lossless PNG is typically larger than the lossy JPG it came from. PNG is best when you need maximum quality for editing or layering; keep JPG when small file size matters most.
Can I convert several JPGs at once, and is there a limit?
There is no imposed limit. Because conversion happens locally there is no upload quota to meter. Very large batches are bounded only by available browser memory.
Is a signup needed to convert JPG to PNG?
No. No account, no email step, and no watermark on the converted image.