Which format should I choose?

Use JPEG for photographs and complex images (smallest file size). Use PNG for images with transparency, screenshots, or graphics with sharp edges. Use WebP for the best of both worlds — smaller than JPEG with optional transparency support.

Does converting to JPEG lose quality?

Yes, JPEG is a lossy format. Each conversion may reduce quality slightly. At 90% quality, the loss is imperceptible to most viewers. For lossless quality, use PNG (larger files) or WebP at 100% quality.

Will PNG transparency be preserved?

Transparency is preserved when converting to PNG. Converting a transparent PNG to JPEG will replace transparent areas with white, since JPEG does not support transparency. WebP supports transparency.

What quality setting should I use?

For web images: 80-85% offers great quality with significant size savings. For print: 95-100%. For thumbnails: 70-80%. PNG format has no quality setting as it is always lossless.

Is WebP supported by all browsers?

WebP is supported by all modern browsers including Chrome, Firefox, Safari, Edge, and Opera. Only Internet Explorer and very old browser versions lack WebP support. For maximum compatibility, JPEG remains the safest choice.

Is my image uploaded to a server?

No. All format conversion happens in your browser using the Canvas API. Your images never leave your device.

Free tool

Image format converter

Convert images between JPEG, PNG, WebP and AVIF formats in your browser. Adjustable quality, instant preview, no server upload. Perfect for optimizing images for the web.

100% free
No sign-up
No limits
Instant results

Drop image, click to browse, or Ctrl+V to paste

What this tool does

Convert between JPEG, PNG, WebP, AVIF
AVIF — next-gen format, 50% smaller
Adjustable output quality
See file size comparison
Zero server upload — 100% browser
Download converted image instantly

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The short version

What is Image Format Converter?

An image format converter changes images from one file format to another.

Different formats serve different purposes: JPEG for photographs with small file sizes, PNG for images requiring transparency, and WebP for modern web optimization with 25-35% smaller files than JPEG. This tool converts between all three formats entirely in your browser using the Canvas API — no images are uploaded to any server. You can adjust the output quality for JPEG and WebP formats to balance file size and visual quality. The converter shows a size comparison between the original and converted image, helping you choose the optimal format for your use case. Whether you are converting PNG screenshots to JPEG for email, optimizing images to WebP for faster web pages, or converting WebP images to PNG for compatibility, this tool handles it instantly.

Step by step

How to use Image Format Converter

1
Upload your image
Drag and drop any image file or click to browse. The tool shows the original file name, size, and format.
2
Select output format and quality
Choose PNG, JPEG, or WebP as the output format. For JPEG and WebP, adjust the quality slider to control the compression level.
3
Convert and download
Click Convert to process the image. Review the size comparison, then click Download to save the converted file.

What's inside

Everything this tool
does for you

Convert between JPEG, PNG, WebP and AVIF formats
Adjustable quality slider for JPEG and WebP output
File size comparison showing savings or increase
Drag-and-drop upload with instant preview
PNG transparency preservation when converting to PNG
Zero server upload — all processing in your browser

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Questions

Frequently asked questions

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What is Image Format Converter?

How to use Image Format Converter

Upload your image

Select output format and quality

Convert and download

Everything this tooldoes for you

Related free tools

Image Compressor

Image Resizer

Image to Base64

Favicon Generator

Color Picker from Image

Image Cropper

Frequently asked questions

Which format should I choose?

Does converting to JPEG lose quality?

Will PNG transparency be preserved?

What quality setting should I use?

Is WebP supported by all browsers?

Is my image uploaded to a server?

This tool fixed one thing.Now fix the whole site.

Everything this tool
does for you

This tool fixed one thing.
Now fix the whole site.