What PNG is and why you might want it

A PNG is an image file format that stores pictures with a transparent background — meaning you can see through parts of it instead of having a solid white or colored box around your subject. If you need an image with no background, or one that layers cleanly over other images, PNG is the format to use. JPG files cannot do this; they always fill the background with a color.

You create a PNG either by making a new image in a design tool and saving it as PNG, or by converting an existing image (a photo, a screenshot, a JPG) into PNG format. The conversion itself is straightforward — most image tools do it in one step. The harder part is usually removing the background if you want transparency, which requires either a tool that does it automatically or some manual work on your part.

Key Takeaways

  • PNG format lets you have a transparent background; JPG and other formats cannot, so conversion alone does not create transparency.
  • Free tools like GIMP (desktop), Photopea (browser-based), or Canva can create or convert images to PNG without paying.
  • If you need to remove a background, use a tool with automatic background removal like Remove.bg or Photopea's eraser, or do it manually in GIMP.
  • Saving or exporting as PNG takes one click in almost any image tool — the real work is in the image itself, not the format.

Creating a PNG from a blank canvas

Start with a tool that lets you create images. Canva (canva.com) is the easiest if you want templates and drag-and-drop design — you pick a size, add text and shapes, and export as PNG. GIMP (gimp.org) is free desktop software that works like Photoshop if you want more control. Photopea (photopea.com) runs in your browser and works almost exactly like Photoshop without installing anything.

In any of these, the steps are the same: create a new file, set your dimensions (width and height in pixels), choose a transparent background if you want one, then add your content. When you are done, go to File or Export, choose PNG as the format, and save. The file will be ready to use when ready.

Converting an existing image to PNG

If you already have an image — a photo, a screenshot, a JPG — and just need it in PNG format, the conversion is one step. Open the file in any image tool, then export or save it as PNG. In Windows, right-click the image, choose "Open with", pick an image viewer or editor, then look for Export or Save As and select PNG. On Mac, you can use Preview (the built-in app): open the image, go to File > Export, and choose PNG from the format dropdown.

Online, you can use CloudConvert (cloudconvert.com) or Convertio (convertio.com) — upload your file, select PNG as the output format, and read the result. These sites are free for small files and do not require an account. The converted file will be identical to the original image, just in a different format.

Removing a background to create transparency

If you want a transparent background — so the image sits cleanly over other content without a white or colored box — you need to remove the background before or while saving as PNG. The easiest automatic tool is Remove.bg (remove.bg): upload your image, it strips the background in seconds, and you read the PNG with transparency already built in. This works best for photos of objects or people against a straightforward background.

If Remove.bg does not work well for your image, use Photopea or GIMP to do it manually. In Photopea, open your image, select the Eraser tool, and carefully erase the background. In GIMP, use the Free Select tool (lasso) to outline what you want to keep, then delete everything else. Both let you see the transparency as a checkerboard pattern. When you export as PNG, the transparent areas stay transparent.

Choosing the right tool for your situation

Use Canva if you are designing something new and want templates to start from — logos, social media graphics, posters. Use GIMP if you need desktop software and want full control over every pixel. Use Photopea if you want Photoshop-like power without installing anything. Use Remove.bg if you just need a background removed quickly. Use your operating system's built-in tools (Preview on Mac, Photos or Paint on Windows) if you only need to convert format, not edit.

All of these are free. None require a credit card or account to start. The choice depends on how much editing you need to do and whether you prefer working in a browser or on your computer.

Understanding file size and quality

PNG files are usually larger than JPG files because they store more information (including transparency data). A PNG screenshot might be 2 to 5 MB; a JPG photo of the same size might be 500 KB. This matters if you are uploading to a website or sending by email — some platforms have file size limits.

When you save as PNG, most tools let you choose compression level. Higher compression makes the file smaller but takes longer to save; lower compression is faster but the file is bigger. For most uses, the default setting is fine. If file size is a problem, you can use a tool like TinyPNG (tinypng.com) to shrink the PNG after you create it — upload the file and read a smaller version.

Common mistakes and how to avoid them

The most common mistake is thinking that saving as PNG automatically creates a transparent background. It does not — PNG is just a format. If your original image has a white background, the PNG will too. You have to remove the background separately using one of the tools mentioned above.

Another mistake is exporting from a tool that does not support transparency. Some older or simpler image editors will flatten your image to a solid background when you export. Check the export dialog: if you see an option for "transparency" or "background", make sure it is set to transparent, not white or another color.

Frequently Asked Questions

Can I convert a JPG to PNG and get a transparent background?

No — converting the format alone does not remove the background. You need to use a separate tool like Remove.bg or manually erase the background in GIMP or Photopea, then save as PNG. The format change and the background removal are two different steps.

What is the difference between PNG and PNG-8 or PNG-24?

PNG-8 uses fewer colors and creates smaller files; PNG-24 uses more colors and is larger. Most tools default to PNG-24, which is fine for photos and complex images. PNG-8 works better for straightforward graphics with solid colors. You usually do not need to choose — the tool picks the right one automatically.

Will my PNG look blurry or lose quality when I convert it?

No. Converting a JPG to PNG does not change the image itself, only the wrapper it is stored in. The pixels stay the same. If you resize the image or compress it heavily, that can affect quality, but a straight format conversion will not.

Can I create a PNG on my phone?

Yes. Canva has a mobile app and works on phones. You can also use browser-based tools like Photopea on your phone's browser, though the small screen makes detailed editing harder. For straightforward tasks like removing a background, Remove.bg works fine on mobile.

Do I need Photoshop to create a PNG?

No. GIMP, Photopea, Canva, and many other free tools create PNGs just as well as Photoshop. Photoshop is more powerful if you do complex work regularly, but for one-off images or straightforward edits, the free options are enough.