What's the difference between JPG, PNG, and WebP?

JPG: best for photos, smaller size, no transparency. PNG: best for graphics, larger size, supports transparency. WebP: modern format, smaller than both JPG and PNG, supports transparency. WebP is recommended for web if supported.

When should I use each format?

JPG for: photos, complex images, when size matters. PNG for: logos, graphics, images needing transparency. WebP for: web images (best compression). GIF for: animations. BMP rarely used (uncompressed, large files).

Does conversion affect quality?

JPG to PNG: no quality loss (PNG is lossless). PNG to JPG: quality loss (JPG compresses). WebP: minimal loss with better compression. Converting to/from lossless formats (PNG, BMP) preserves quality. JPG re-compression each time reduces quality.

Image Format Converter - Convert Images Between Formats

Drop an image here or click to select

Supports PNG, JPG, WebP, GIF, BMP, TIFF

Output Format

Converted image will appear here

Format Comparison

PNG

Lossless compression, supports transparency. Best for graphics.

JPG/JPEG

Lossy compression, smaller files. Best for photos.

WebP

Modern format, 25-35% smaller than JPG. Good compression.

AVIF

Next-gen format, 50% smaller than JPG. Best quality/size.

What is Image Format Converter?

An image format converter transforms images between different file formats, each optimized for specific use cases. PNG uses lossless compression and supports transparency, making it ideal for graphics, icons, and screenshots. JPG (JPEG) employs lossy compression that dramatically reduces file size at the cost of some quality, perfect for photographs on the web. WebP is a modern format developed by Google that offers 25-35% better compression than JPG while maintaining comparable visual quality, increasingly supported across browsers. AVIF is the next-generation format based on the AV1 video codec, achieving up to 50% smaller files than JPG with excellent quality, though browser support is still growing. This tool processes all conversions locally in your browser using the Canvas API, ensuring your images remain completely private. The quality slider for lossy formats lets you find the optimal balance between file size and visual fidelity for your specific use case.

How to Use

Click 'Select Image' or drag and drop an image into the upload area
Choose your desired output format (PNG, JPG, WebP, or AVIF)
For lossy formats (JPG, WebP, AVIF), adjust the quality slider to balance file size and image quality
Click 'Convert' to process the image - conversion happens entirely in your browser
Preview the converted image and check the size comparison
Click 'Download' to save the converted image to your device

Why Use This Tool?

Privacy-focused: All processing happens locally, no images uploaded to servers

Support for modern formats like WebP and AVIF for optimal compression

Quality control slider for lossy formats

Instant preview and size comparison before downloading

No software installation required - works directly in your browser

Free to use with no file size limitations

Tips & Best Practices

Use PNG for images with transparency or when you need perfect quality
Use JPG for photographs and images with complex colors where small file size matters
WebP is excellent for web use - it offers better compression than JPG while maintaining quality
AVIF provides the smallest file sizes but may not be supported in older browsers
For web deployment, test different quality levels to find the optimal balance
Converting from a lossy format (JPG) to another lossy format may reduce quality - PNG to JPG/WebP gives better results

Frequently Asked Questions

What image formats can I convert to?

You can convert images to PNG, JPG, WebP, and AVIF formats. PNG is lossless and supports transparency, JPG uses lossy compression for smaller files, WebP offers modern efficient compression, and AVIF provides next-generation compression with the smallest file sizes.

Will my images be uploaded to a server?

No, all image conversion happens entirely in your browser using canvas technology. Your images are never sent to any server, ensuring complete privacy and security.

What quality setting should I use for JPG/WebP?

For most web use cases, 80-85% quality provides excellent results with significantly smaller file sizes. For archival purposes or print, use 90-100%. Lower quality (50-75%) works well for thumbnails or preview images.

Why can't I select AVIF format?

AVIF format support varies by browser. Chrome and Safari 14+ support AVIF encoding. If you're using an older browser, you may not see AVIF as an option. Try updating your browser or using Chrome for best results.

Can I convert transparent PNG to JPG?

Yes, but JPG doesn't support transparency. When converting transparent PNG to JPG, transparent areas will be filled with white background. For transparent images, use PNG or WebP format instead.

Does converting between formats affect image quality?

Converting from PNG (lossless) to JPG/WebP/AVIF (lossy) will reduce quality based on your quality setting. Converting from lossy format to PNG won't restore lost quality - it just makes the file larger. Always work from the highest-quality source image available.

When should I NOT use this converter?

Avoid using this for batch processing hundreds of images — use command-line tools like ImageMagick or Sharp for bulk operations. Also skip it for images requiring precise color profile management (sRGB, Adobe RGB, Display P3), as the Canvas API may not preserve ICC profiles. For animated images (GIF, animated WebP), this tool only captures the first frame.

Real-world Examples

Optimizing web images for faster page loads

Convert large PNG screenshots to WebP format for significantly smaller file sizes while maintaining visual quality, improving page load performance.

Input

Screenshot.png (1.2 MB, PNG format)

Output

Screenshot.webp (340 KB, WebP at 85% quality)
Size reduction: 72%

Preparing a transparent logo for non-SVG platforms

Some platforms don't support SVG or transparent PNG. Convert a transparent PNG logo to JPG with white background for compatibility.