How to Convert PNG to JPG (and When You Should)

To convert PNG to JPG, open the image in a PNG to JPG converter, choose a quality level around 85%, and download the new file. For photographs and detailed screenshots, the JPG is often a fraction of the size of the PNG, which makes it far easier to email, upload or share. The two things to watch are transparent backgrounds, which JPG cannot keep, and sharp text, which needs a high quality setting.

Here is how to do it, and how to tell whether you should.

Why convert PNG to JPG?

PNG is a lossless format: it stores every pixel exactly. That is perfect for some images and wasteful for others. A photo saved as PNG carries every tiny variation in colour, which makes the file large without making it look any better at normal size.

Converting to JPG makes sense when:

• A form or portal only accepts JPG or JPEG. Many job, school, exam and bank portals ask for JPG specifically.
• The file is too large to upload or email. Photos and detailed screenshots saved as PNG often shrink by 70–90% when converted.
• You are sharing photos. JPG is what most people and most software expect for photographs.
• Your phone or computer saved a photo as PNG by default, such as some screenshots of photos or images exported from editing apps.

When you should keep PNG instead

Converting is not always an improvement. Keep the PNG when:

• The image needs a transparent background. Logos, icons and cut-out product images lose their transparency in JPG.
• It is mostly text or line art. Diagrams, charts and interface screenshots stay crisper as PNG. JPG can add faint fuzzy patches around sharp edges.
• It is a working file you will keep editing. Every time a JPG is saved again, it loses a little more detail. PNG does not.
• It is a simple graphic with flat colours. PNG is already efficient for these, so the saving from JPG will be small.

If you are still weighing it up, our guide to JPG vs PNG sets out the differences side by side.

How to convert PNG to JPG with TinyTools

The PNG to JPG tool converts one image or many at once, with adjustable quality.

1. Add your PNG files. Drop in one or more .png images, or tap to choose them from your phone or computer.
2. Choose a quality level. Around 85% keeps the image looking sharp while making the file much smaller.
3. Convert. Each PNG is redrawn and encoded as a JPG in your browser.
4. Download. Save your JPGs individually or all at once.

Nothing is uploaded. The conversion runs entirely on your device, so it is safe for ID scans and personal photos.

Choosing the right quality setting

The quality slider controls how much detail the JPG keeps. Higher means larger files and fewer visible changes.

• 85% (the default): A good balance for most images. The difference from the original is very difficult to see.
• 90% and above: Use this for screenshots with small text, or anything you may print. Text and sharp edges suffer more than photographs do, so they benefit from the extra quality.
• 70–80%: Fine for photos you are sharing casually, where a smaller file matters more.
• Below 60%: Expect softness and blocky patches in smooth areas such as skies and skin. Rarely worth it.

If you need the file under a specific size, such as a hypothetical "maximum 200 KB" on an application form, a quality slider means trial and error. Instead, use Compress Image in File size mode: enter the limit and it saves a JPG that fits. Our guide to reducing image size in KB explains how.

What happens to transparent areas?

JPG has no way to store transparency, so every transparent pixel has to become a solid colour. This tool fills transparent areas with white, which suits most screenshots, logos and documents.

That has two consequences worth knowing:

• A logo on a transparent background will become a logo on a white rectangle. If you plan to place it on a coloured background, keep the PNG.
• If the PNG had a soft shadow or semi-transparent edge, it will blend into white in the JPG.

Tips for the best results

Convert from the original. If you have the PNG straight from the source, use that rather than a copy that has been through a messaging app or downloaded from social media.

Resize too, if the image is huge. A very large PNG converted to JPG is smaller, but still bigger than needed if it will only be viewed on a phone. Resize Image can bring the dimensions down to what you actually need, and it can save straight to JPG.

Check text-heavy images after converting. Zoom in to normal reading size and make sure small text is still crisp. If it looks fuzzy, convert again at a higher quality.

Keep the PNG. Treat the JPG as the copy you share. If you ever need to edit the image or use it on a different background, the PNG is your best starting point.

Common mistakes

• Renaming .png to .jpg. Changing the extension does not convert the file. Some portals check the actual format and will reject it, or the image may fail to open. Convert it properly.
• Converting logos with transparent backgrounds. They end up on a white box.
• Using low quality for screenshots. Small text becomes hard to read.
• Converting a JPG to PNG and back again. You gain nothing and risk losing a little more detail. Go back to the original.

Frequently asked questions

Does converting PNG to JPG reduce quality?

Slightly, because JPG is a lossy format. At quality 85 the difference is very difficult to see. Text and sharp edges are affected more than photographs, so use a higher setting for screenshots.

How much smaller will my JPG be?

For photographs and detailed screenshots, expect the file to shrink by 70–90%. For simple graphics with large flat areas of colour, PNG is already efficient and the saving will be smaller.

What happens to a transparent background when I convert PNG to JPG?

JPG cannot store transparency, so transparent areas are filled with white. If you need to keep the transparency, stay with PNG, or use WebP, which supports it at a smaller size.

Can I convert multiple PNG files to JPG at once?

Yes. Add as many PNGs as you like, convert them in one pass and download them individually or all together.

Can I convert PNG to JPG on my phone?

Yes. The tool runs in your phone's browser, so you can choose images from your gallery or files and download the JPGs without installing an app.

Shrink your PNGs in seconds with PNG to JPG. It is free, needs no account, and your files never leave your device.