About the Image Converter
Tezmy's Image Converter changes images from one format to another in seconds: PNG to JPG for smaller photos, JPG to PNG for lossless editing, WebP to JPG or PNG when a website or app doesn't accept WebP, and almost any image to WebP for faster websites. Convert a whole batch at once, choose the quality for JPG and WebP, and download everything as a ZIP. It works entirely in your browser, so your images are private and conversion is instant.
Updated September 2026
How to use the Image Converter
- 1Pick the format you want: JPG, PNG or WebP.
- 2Click Select images, or drop your images on the page. Any number is fine.
- 3Adjust the quality for JPG or WebP if you like.
- 4Download each converted image, or all of them as a ZIP.
Which format should you choose?
- JPG: the best choice for photos. Small files, and accepted by every website, app and printer.
- PNG: keeps images exactly, with transparent backgrounds. Best for logos, icons, screenshots and anything you will edit again.
- WebP: a modern format that is usually much smaller than JPG and PNG and supports transparency. Ideal for websites; a few older apps and upload forms don't accept it yet.
Common conversions
- WebP to JPG: when you save an image from a website and an app or form won't accept WebP.
- PNG to JPG: to make screenshots and photos much smaller for email and uploads.
- JPG to PNG: when an editor or design tool asks for PNG, or you want to avoid further quality loss while editing.
- JPG or PNG to WebP: to make website images load faster, which also helps SEO.
Quality and transparency
For JPG and WebP you can choose a quality: around 80% gives a much smaller file with no visible difference. PNG is always lossless, so it has no quality setting. When converting to JPG, transparent areas become white, because JPG can't store transparency; choose PNG or WebP to keep them.
If the converted file is still too big for an upload, use Compress Image, and to change the dimensions use Image Resizer.
Convert many images at once
Add as many images as you like, pick the format once, and each image is converted on your own device. Download them one by one or all together as a ZIP. Because nothing is uploaded, it is fast and private, even for personal photos.
Features
- Convert to JPG, PNG or WebP
- Opens PNG, JPG, WebP, GIF, BMP, SVG and more
- Batch conversion with ZIP download
- Quality control for JPG and WebP
- Keeps full resolution
- Private: images never leave your device
Frequently asked questions
How do I convert PNG to JPG?
Choose JPG at the top, drop your PNG files in, and download the results. Transparent areas become white because JPG doesn't support transparency.
How do I convert WebP to JPG or PNG?
Pick JPG or PNG, then drop your WebP images in. This is useful when an app, printer or website doesn't accept WebP files.
Which format should I choose?
JPG is best for photos and smallest for sharing. PNG is best for screenshots, logos and graphics that need sharp edges or transparency. WebP is smaller than both and great for websites.
Does converting reduce quality?
Converting to PNG keeps every pixel exactly. JPG and WebP use compression; at 90% quality the difference is practically invisible.
Are my images uploaded?
No. Conversion happens in your browser and your images never leave your device.
Can I convert HEIC photos from my iPhone?
Use our HEIC to JPG converter: it opens iPhone HEIC and HEIF photos in every modern browser and saves them as JPG or PNG.
Can I convert images on my phone?
Yes. It works in Safari and Chrome on iPhone and Android. Select images from your gallery, choose a format and download the results.
Will converting change the image size in pixels?
No. The width and height stay the same. Use Image Resizer if you also want to change the dimensions.