Are my files uploaded to a server?

No. This conversion runs inside your browser using your own device’s processing power, and the file is not uploaded. Once a tool has been used once (video, text recognition and background removal download their engine from this site the first time), it keeps working when your connection drops.

What happens to transparent backgrounds?

They become white, because JPG cannot store transparency. Use WebP if you need a smaller file that keeps the transparent background.

My JPG came out larger than the PNG — why?

That happens with flat graphics and text screenshots, which PNG stores very efficiently. For those, PNG is genuinely the better format and you should keep the original.

Convert PNG to JPG

Runs on your device · Your file never leaves your device.

PNG files — especially screenshots and exported graphics — are often many times larger than they need to be. For photographic content, converting to JPG makes the file much smaller; compare the preview if fine detail matters.

Adjust quality to trade size against fidelity, and set a hard size cap if you need the result under a specific limit.

Note that JPG has no transparency: any transparent area in the PNG becomes solid white. If you need transparency, keep the file as PNG or convert to WebP instead.

How to convert PNG to JPG

Add your PNG images, one or many.
Optionally set a maximum file size if you are uploading to a form.
Press Convert — transparent areas are filled with white, as JPG has no transparency.
Download the JPGs, as a ZIP for a batch.

Supported formats and limits

Input: PNG images
Output: JPG
Typical saving: Large for photographs; small or negative for flat graphics
Transparency: Replaced with a white background
Where it runs: In your browser; nothing uploaded

Not for: Logos and screenshots with sharp edges — JPG blurs them slightly; keep those as PNG or convert to WebP.

What happens to transparent and half-transparent pixels

Before encoding, the PNG is drawn onto a solid white sheet. Fully transparent areas become plain white, and half-transparent pixels, such as the soft edge of a cut-out logo or a drop shadow, are blended with that white. A logo designed for a dark background therefore gets a light rim along its edges in the JPG.

The background colour is fixed to white on this page. If the picture must stay see-through, /png-to-webp keeps the transparency in a compressed format.

Settings for screenshots and for photos

For a photograph that happens to be saved as PNG, such as a scan or an export from an editor, start with the default quality of 85 and check the before-and-after panel, which shows how much the size changed.

For a screenshot with small coloured text or thin coloured lines, set the slider to 90 or more. Below 90 the encoder stores colour at half resolution, which softens red and blue lettering first; from 90 it keeps colour in full. The quality score under the result is measured on brightness only, so it will not reveal a colour fringe: look at the after preview closely instead.

What a PNG can carry that a JPG cannot

A PNG can hold 16 bits per colour channel, an animation (APNG), and text notes such as the program that made it or a print resolution. The browser draws the picture at 8 bits per channel, which is also what a standard JPG stores. An animated PNG gives only its first frame, and the notes are not copied, because the JPG is written from the pixels alone.

If a form asks for a size in KB, switch on Force a maximum file size: quality is lowered first and the pixel size only if needed, as described on /compress-image.

Frequently asked questions

Are my files uploaded to a server?: No. This conversion runs inside your browser using your own device’s processing power, and the file is not uploaded. Once a tool has been used once (video, text recognition and background removal download their engine from this site the first time), it keeps working when your connection drops.
What happens to transparent backgrounds?: They become white, because JPG cannot store transparency. Use WebP if you need a smaller file that keeps the transparent background.
My JPG came out larger than the PNG — why?: That happens with flat graphics and text screenshots, which PNG stores very efficiently. For those, PNG is genuinely the better format and you should keep the original.