Image Tools

PNG to JPG

Converts one PNG image to JPG by drawing it on a canvas in your browser and exporting it as JPEG at a fixed quality of 0.92. Transparent areas are flattened onto white when the output is JPEG, because JPEG cannot store transparency.

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Processed in your browser — your file is not uploaded.

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Up to 1 files

PNG → JPG conversion:

Lossy compression (smaller file size)
No transparency (white background)
Perfect for photos

How to Use

1Drop a .png file onto the upload area, or click it to choose one.
2Only one file can be converted at a time.
3Click 'Convert to JPG' and wait for 'Converting PNG to JPG...' to finish.
4Download the JPG. If your PNG had transparent areas, check them before using the file (see the FAQ on transparency).

About this tool

Updated September 19, 2026

The size saving, and what it costs

JPEG discards detail to compress, which makes photographs dramatically smaller than PNG at quality that is hard to tell apart.

PNG records every pixel exactly, which is wasteful for a photograph where millions of subtly different colours are exactly what lossy compression handles well. A screenshot of a photo saved as PNG can easily be five or ten times larger than the same picture as a good JPEG. The conversion here uses a high quality setting, so on photographic content the difference is usually invisible at normal viewing size.

Transparency turns into white

JPEG has no alpha channel, so any transparent area is filled with white before the file is written.

This is the change that catches people out, because transparency is the main reason to use PNG in the first place. A logo with a see-through background becomes a logo on a white rectangle. That is fine on a white page and wrong everywhere else. If the transparency matters, keep the PNG, or convert to WebP, which supports an alpha channel and still compresses well.

Not every PNG should become a JPEG

Screenshots, diagrams, logos and anything with text or hard edges usually look worse as JPEG and may not even get smaller.

Lossy compression works by smoothing away detail it judges unimportant, and sharp boundaries between flat colours are exactly where that judgement fails. The result is faint haloing and speckle around lettering and lines, visible at full size and worse after any further editing. Large flat areas also compress superbly in PNG, so a screenshot can come out barely smaller as a JPEG, or occasionally larger. Convert photographs; keep PNG for everything drawn.

It is a one-way change

Detail removed by JPEG compression cannot be recovered, so keep the PNG if you will edit the image again.

Converting the JPEG back to PNG later produces a lossless copy of a lossy image, not the original. That matters most for pictures you intend to crop, retouch or re-export, because each save as JPEG loses a little more. Work in PNG, export to JPEG last, and keep the PNG as your master copy.

Features

Accepts .png files only, one file per conversion
Exports JPEG at a fixed quality of 0.92; there is no quality slider
Keeps the original pixel dimensions
Transparent areas are flattened onto white when the output is JPEG, because JPEG cannot store transparency.
Runs in your browser using the canvas API; the file is not uploaded for the conversion

FAQ

What happens to transparent areas when I convert PNG to JPG?

JPEG has no alpha channel, so transparency has to be replaced by a solid colour. Transparent areas are flattened onto white when the output is JPEG, because JPEG cannot store transparency. The hint text on the page mentions a white background, but the conversion code does not apply one. If you need white, place your image on a white background first, or use the Image Compressor with JPEG output, which does flatten transparency onto white.

Can I choose the JPG quality?

No. The page has no quality control; it exports at a fixed 0.92 setting. To choose a quality level for JPEG output, use the Image Compressor.

Is the conversion reversible?

No. JPEG is lossy, so some detail is discarded when the JPG is written. Converting that JPG back to PNG will not recover it. Keep your original PNG if you may need it.

Is PNG to JPG a good idea for screenshots and logos?

Often not. JPEG compression tends to smear sharp text and flat colour edges, and it cannot keep transparency. It suits photographs better than logos, line art or screenshots.

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Reduce an image's file size with a quality slider, output format choice and optional max dimensions.

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Convert a single JPG/JPEG image to PNG in your browser, without uploading it.

PNG to WebP

Convert a single PNG to WebP in your browser, keeping transparency where the browser supports it.