How do I convert PNG to JPG online for free?

Drop one PNG into the box and it converts straight away — there is no button to press. Check JPG is the selected output, adjust the quality slider if you want, then press Download. Nothing is uploaded, and there is no sign-up or watermark.

How much smaller will the JPG be?

For a photograph, dramatically — often a fraction of the original, because PNG stores photos very inefficiently. For flat graphics, logos or screenshots the saving is small or negative, since PNG is already well suited to those. The result panel shows the exact percentage change, so check rather than assume.

What happens to a transparent background?

JPEG has no alpha channel, so transparency must be filled with a solid colour. It is flattened to white by default, and there is a black option beside the quality slider — which matters for light-coloured artwork that would vanish against white. Keep it as PNG if you need the transparency.

Can I control the compression level?

Yes. The quality slider runs from 30 to 100 percent in 5 percent steps and defaults to 90, which is high enough that most people cannot see the difference from the original. Dropping to 70 or 75 usually halves the file again with very little visible cost on a photograph.

Is converting PNG to JPG lossy?

Yes, and it is one-way. JPEG discards detail permanently, so you cannot convert back and recover what was lost — converting the JPG to PNG later simply preserves the compressed result. Keep the original PNG if you might need to edit the image again.

Will the pixel dimensions change?

No. Width and height come through untouched, so a 4000 by 3000 image stays 4000 by 3000 — the file is drawn at its exact source size and re-encoded. Use the image resizer if you want smaller dimensions, which reduces size far more than compression alone.

Can I convert several PNGs at once?

Not with this tool — it handles one at a time so you can judge the quality and size trade-off on each image. For a whole folder converted together and returned as a single ZIP, use the all-in-one file converter, which accepts multiple selections.

Should I use WebP instead?

For anything going on a web page, very likely yes. WebP is typically 25 to 35 percent smaller than JPEG at comparable quality and it supports transparency, so a logo does not need flattening. Choose JPG when you need a file that opens in older desktop software or a portal that demands JPEG.

PNG to JPG Converter

Convert PNG to JPG online free — compress and flatten transparency to a solid background colour. Nothing leaves your device — fast and private.

Files never leave your deviceInstant — no upload waitFree, no sign-up

1Choose or drop an image to convert

Choose an image to convert or drag & dropJPG, PNG, WebP, GIF, BMP or SVG

or import from

PNG to JPG re-encodes an image into a much smaller file, with an adjustable quality setting. Transparency is flattened to white or black, and pixel dimensions never change. Drop one file and it converts instantly, entirely in your browser: no upload, no sign-up, no watermark.

Why the saving is so large — and when it is not

PNG compresses losslessly: it stores enough information to rebuild every pixel exactly. That is ideal for flat colour and sharp edges, and very inefficient for photographs, where millions of slightly different shades each have to be recorded. JPEG throws away detail your eye is unlikely to miss, which is why a photo shrinks so dramatically.

The corollary catches people out: for the content PNG is good at, JPG is worse on both counts. A screenshot, a logo or a chart converted to JPG can come out larger and visibly worse, with halos around text and fringing on hard edges. The result panel shows the size change as a percentage, so you can see which case you are in before downloading.

What to expect by image type.
Image content	JPG size	Visible damage	Convert?
Photograph	Much smaller	None at 90%	Yes
Screenshot with text	Similar or larger	Text edges smear	No — keep PNG
Logo or icon	Often larger	Fringing, and transparency lost	No — keep PNG
Chart or diagram	Often larger	Halos along lines	No — keep PNG
Scanned document	Smaller	Slight softening of text	Usually yes

Using the quality slider properly

Quality runs from 30% to 100% in 5% steps, defaulting to 90%. That default is deliberately conservative — at 90 the difference from the original is very hard to see on a photograph.

The useful range is lower than most people expect. Dropping to 75% typically halves the file again with almost no perceptible loss on photographic content, and it is a better first move than resizing if you need to hit an upload limit. Below about 60% the artefacts become visible in flat areas like sky and skin. Because conversion re-runs the moment you move the slider, you can compare sizes in a few seconds rather than guessing.

One thing to remember: every conversion is one-way. JPEG discards detail permanently, so converting the result back to PNG later preserves the compressed version rather than recovering the original. Keep the PNG if the image might need editing again.

Transparency has to go somewhere

This is where most converters quietly ruin an image. JPEG cannot store transparency, so those pixels must be filled — and a tool that fills them with black turns a clean dark logo into a solid rectangle.

Here transparency is flattened to white by default, with a black optionbeside the quality slider. White suits most artwork; black is the one you need when the logo itself is light or white, which would otherwise disappear entirely. If neither is right, the honest answer is that JPG is the wrong format — keep PNG, or use WebP, which is smaller than JPEG and keeps the alpha channel.

If the goal is a smaller file, check the order of operations

Converting to JPG is one of three levers, and it is not always the strongest:

Dimensions first. Halving the width and height cuts the pixel count to a quarter. The image resizer beats any compression setting if the image is larger than it needs to be.
Then format. JPG for photos, or WebP for the web — typically another 25–35% below JPEG.
Then quality. The slider here, or the image compressor if you need to hit a specific kilobyte ceiling, which searches for the quality that lands under it.

A 4000-pixel photo destined for a 600-pixel-wide blog column should be resized before anything else. No amount of clever compression fixes an image that is six times larger than it will ever be displayed.

How this compares to the alternatives

Converting one image.
	ToolJiffy	Typical online converter	Desktop editor
Image uploaded to a server	No	Yes	No
Sign-up	No	Often above a size limit	Licence
Quality control	Yes, 30–100%	Often fixed	Yes
Choice of flatten colour	White or black	Rarely offered	Yes
Batch and ZIP output	No — one at a time	Usually, behind a limit	Yes
Watermark	Never	Sometimes on free tiers	No
Price	Free, unlimited	Free tier then paid	Paid

Related tools

Going the other way is JPG to PNG, though it cannot recover lost detail.PNG to WebP is usually the better modern choice, keeping transparency at a smaller size than JPEG. The image format converter is the same engine with every pair, and the all-in-one file converter handles a folder as a ZIP. For size targets use the image compressor orimage resizer, and EXIF remover strips location data deliberately rather than as a side effect of conversion.

Frequently Asked Questions

How do I convert PNG to JPG online for free?
Drop one PNG into the box and it converts straight away — there is no button to press. Check JPG is the selected output, adjust the quality slider if you want, then press Download. Nothing is uploaded, and there is no sign-up or watermark.
How much smaller will the JPG be?
For a photograph, dramatically — often a fraction of the original, because PNG stores photos very inefficiently. For flat graphics, logos or screenshots the saving is small or negative, since PNG is already well suited to those. The result panel shows the exact percentage change, so check rather than assume.
What happens to a transparent background?
JPEG has no alpha channel, so transparency must be filled with a solid colour. It is flattened to white by default, and there is a black option beside the quality slider — which matters for light-coloured artwork that would vanish against white. Keep it as PNG if you need the transparency.
Can I control the compression level?
Yes. The quality slider runs from 30 to 100 percent in 5 percent steps and defaults to 90, which is high enough that most people cannot see the difference from the original. Dropping to 70 or 75 usually halves the file again with very little visible cost on a photograph.
Is converting PNG to JPG lossy?
Yes, and it is one-way. JPEG discards detail permanently, so you cannot convert back and recover what was lost — converting the JPG to PNG later simply preserves the compressed result. Keep the original PNG if you might need to edit the image again.
Will the pixel dimensions change?
No. Width and height come through untouched, so a 4000 by 3000 image stays 4000 by 3000 — the file is drawn at its exact source size and re-encoded. Use the image resizer if you want smaller dimensions, which reduces size far more than compression alone.
Can I convert several PNGs at once?
Not with this tool — it handles one at a time so you can judge the quality and size trade-off on each image. For a whole folder converted together and returned as a single ZIP, use the all-in-one file converter, which accepts multiple selections.
Should I use WebP instead?
For anything going on a web page, very likely yes. WebP is typically 25 to 35 percent smaller than JPEG at comparable quality and it supports transparency, so a logo does not need flattening. Choose JPG when you need a file that opens in older desktop software or a portal that demands JPEG.