Format problems show up at the worst moment. You download a picture and it turns out to be WebP that your editor will not open, a form only accepts JPG, or you need a PNG for a design that must stay pixel-perfect. Converting the file fixes it, as long as you know what each format is good at.
This image converter reads JPG, PNG and WebP and writes any of the three. You choose the output format, set the quality for JPG or WebP, and download the result. Transparent areas become white when you convert to JPG, because JPG has no transparency, while PNG and WebP keep them intact.
How to use: PNG, JPG and WebP Image Converter
- Click Choose an image file and select the JPG, PNG or WebP image you want to convert.
- Under Output format, pick WebP, JPG (white background) or PNG (lossless).
- For JPG or WebP, set the JPG / WebP quality slider; around 80% suits most photos.
- Click Convert format and review the preview and the size change in the result line.
- Click Download to save the converted file with its new extension.
Example: convert a WebP image saved from a website to JPG so an older app can open it.
JPG vs PNG vs WebP: which format should you use?
Each format makes a different trade-off between file size, quality and features. Choosing the right one often saves more space than any amount of fiddling with quality settings.
- JPG: lossy, ideal for photographs, opens everywhere, no transparency.
- PNG: lossless, best for screenshots, logos, text and graphics with sharp edges, supports transparency, but photos become large.
- WebP: modern format that supports both lossy compression and transparency, usually smaller than JPG at similar visual quality, and supported by all current major browsers.
Lossy vs lossless conversion
Lossless formats such as PNG store every pixel exactly. Lossy formats such as JPG and lossy WebP throw away detail the eye is unlikely to notice, which is how they reach much smaller sizes. Converting a JPG to PNG does not restore detail that JPG already discarded; it simply stores the current pixels without further loss, usually in a bigger file.
Converting a photo from PNG to JPG or WebP typically cuts the size sharply. Going the other way makes sense when you plan to edit an image repeatedly, since each save as JPG adds a little more compression.
Common conversions and what to expect
PNG to JPG: great for photos saved as PNG by mistake. Any transparent background turns white. JPG to PNG: useful when a tool requires PNG, but expect a larger file. WebP to JPG or PNG: the go-to fix when downloaded images will not open in older software or upload forms that reject WebP.
Convert to WebP when you publish images on your own website. Smaller images help pages load faster and support better Core Web Vitals scores, especially on mobile connections.
Mistakes to avoid when converting images
Renaming a file from .webp to .jpg does not convert it; the data inside is still WebP and some sites will reject it. Always convert properly. Also keep your logos and transparent graphics as PNG or WebP, since JPG will fill transparency with white. Animated WebP files are saved as a single still frame, and EXIF metadata is not kept in the output.
Frequently asked questions
How do I convert PNG to JPG?
Choose your PNG file, set Output format to JPG (white background), pick a quality around 80% to 90%, and click Convert format. Any transparent pixels are filled with white, because JPG cannot store transparency. Then click Download to save the .jpg file.
How do I convert WebP to JPG or PNG?
Select the WebP image, then choose JPG for a smaller file that opens anywhere or PNG if you need to keep transparency or want a lossless copy. Click Convert format and download the result. This is handy when an image saved from a website will not open in an older app.
Does converting JPG to PNG improve quality?
No. Converting cannot bring back detail that JPG compression already removed. PNG only stores the current pixels without adding further loss, which is useful if you plan to keep editing the image, but the file will usually be larger and look the same.
Is WebP better than JPG?
For websites, usually yes: WebP files are often noticeably smaller than JPG at similar visual quality, and WebP supports transparency. JPG still wins on compatibility with older software, printers and some upload forms. Use WebP for the web and JPG when you are not sure the recipient supports WebP.
Can I convert HEIC or GIF images?
No, the converter accepts JPG, PNG and WebP only. For iPhone HEIC photos, change the camera format to "most compatible" or export the picture as JPG from your phone first. Animated images are not preserved; only a single still frame would be saved.
Why did my converted file get bigger?
Converting a photo to PNG, or saving an already compressed image at a very high quality, often increases the size. If you need a smaller file, choose WebP or JPG and lower the quality slider, or use the Image Compressor with a target size in KB.