Free · no signup · never uploaded
JPG to PNG Converter
Convert a JPG image to a lossless PNG right in your browser — no upload, no watermark, no signup.
Short answer
To convert JPG to PNG, drop your JPG below and download the PNG. PNG is a lossless format — good for editing and for tools that require PNG — so there’s no quality to set. It all runs in your browser: your image is never uploaded, and it works offline.
JPG vs. PNG — which should you use?
PNG is lossless and supports transparency, so it’s ideal for logos, graphics, diagrams, screenshots, and any image you’ll edit repeatedly without adding compression artifacts. JPG is lossy and much smaller for photographs. Converting a JPG to PNG won’t make it look better — the detail a JPG discarded is gone — but it stops further quality loss when you re-save or edit.
When to convert JPG to PNG
- A website, printer, or app requires PNG.
- You’ll edit the image and want to avoid repeated JPG compression.
- You’re combining it with graphics that need a lossless format.
How we calculate this
Conversion happens locally in your browser — here's exactly how:
- Decode. your JPG is decoded to a bitmap in the browser (via createImageBitmap) — never uploaded to any server.
- Draw. the bitmap is drawn to an HTML canvas at its original dimensions.
- Encode losslessly. the canvas is exported with canvas.toBlob('image/png'), which stores the pixels exactly — PNG is lossless, so there's no quality setting.
Assumptions
- Everything runs client-side; large images are limited only by your device's memory.
- PNG is lossless but won't recover detail the JPG already discarded; the PNG file is usually larger.
- A JPG has no transparency, so the PNG is fully opaque.
Last reviewed: July 19, 2026
Frequently asked questions
How do I convert a JPG to PNG?+
Drop your JPG in above and download the PNG — that's it. The conversion runs entirely in your browser, so your image is never uploaded, and it works offline once the page has loaded. PNG is lossless, so there's no quality setting to worry about.
Are my images uploaded to a server?+
No. The converter runs 100% in your browser using the HTML canvas, so your JPG never leaves your device. Nothing is stored or sent anywhere — private and fast, with no signup or watermark.
Why convert JPG to PNG?+
PNG is lossless and widely supported for editing, so converting to PNG is useful when a tool, printer, or platform requires PNG, or when you want to edit an image without adding more JPG compression artifacts. PNG also supports transparency (though a JPG has none to begin with, so the result is fully opaque).
Will the PNG be higher quality than the JPG?+
Converting doesn't add detail — a JPG has already been compressed, and PNG simply stores those exact pixels losslessly. So the PNG won't look better than the JPG, but re-saving and editing it won't degrade it further the way re-saving a JPG would. The PNG file is usually larger than the original JPG.
Does the PNG have a transparent background?+
No — a JPG has no transparency, so every pixel is opaque, and the PNG keeps it that way. If you need to remove a background and make it transparent, that requires a background-removal tool, not a format conversion.
Can I convert many JPGs at once?+
This tool converts one image at a time so you can preview each result. Convert and download one, then drop in the next — no page reload needed. To combine several images into one document, use the JPG-to-PDF tool instead.
Related tools
- PNG to JPG — the reverse: shrink a PNG to a smaller JPG.
- Image resizer & compressor — resize or shrink an image.
Images are converted entirely in your browser and never uploaded. PNG is lossless — the file is usually larger than the original JPG.