Free Image Converter — JPG, PNG, WebP, AVIF

Convert Images Instantly in Your Browser

Our free online image converter transforms your photos between JPG, PNG, WebP, and AVIF formats entirely in your browser. No files are uploaded to any server, so your images remain completely private. Conversion happens instantly with no waiting for server processing.

How Image Conversion Works

Image conversion transforms a file from one format to another. Each format stores image data differently, which affects file size, quality, and feature support like transparency. Our tool reads your image, decodes the pixel data, then re-encodes it in your chosen format with your preferred quality settings.

JPG (JPEG)

Uses lossy compression to achieve small file sizes. Ideal for photographs and images where small file size matters more than pixel-perfect quality. Does not support transparency.

PNG

Uses lossless compression to maintain all visual details. Supports transparent backgrounds, making it perfect for logos, icons, and graphics. File sizes are typically larger than JPG.

WebP

A modern format developed by Google that combines the best of JPG and PNG. Offers smaller file sizes with excellent quality and supports both lossy compression and transparency. Widely supported in all modern browsers.

AVIF

A next-generation image format based on the AV1 video codec. Delivers the smallest file sizes of any format with excellent visual quality. Support is growing rapidly across modern browsers.

Features of Our Image Converter

Batch Conversion: Upload and convert multiple images at once. Download them individually or all together as a ZIP file.
Adjustable Quality: Control the compression level with a quality slider to balance file size and image clarity.
Resize While Converting: Optionally scale your images down while converting to save even more space.
Real-Time Preview: Use the before-and-after comparison slider to see exactly how your quality settings affect the image.
Format Suggestions: The tool automatically suggests the best format based on what you uploaded.
100% Private: All processing happens locally in your browser. Your images never leave your device.

Why Convert Images?

Improve Web Performance: Smaller images load faster, improving page speed and SEO rankings.
Save Storage Space: Compressed formats like WebP and AVIF dramatically reduce file sizes.
Enable Transparency: Convert JPG to PNG or WebP when you need transparent backgrounds.
Platform Compatibility: Convert to formats supported by your target platform or device.

Tips for Best Results

For photographs and general web images, WebP at 80-85% quality offers the best balance of size and clarity. Use PNG only when you need lossless quality or transparency. If your audience uses modern browsers, AVIF delivers the smallest files. When resizing, always maintain the aspect ratio to avoid stretching.