ToolFeather

Image Format Converter

Convert images between JPG, PNG, and WebP — in batches, with quality control, and without uploading anything.

Image Format Converter

Drop images here or click to choose

🔒 Nothing you enter is sent anywhere or stored. All processing happens in your browser.

How it works

Different image formats suit different jobs, and this converter moves your images between the three most common web formats using the browser's canvas. Load an image, choose a target format, and download the result — with batch support for many files at once.

JPG is best for photographs: it compresses smoothly but doesn't support transparency. PNG is lossless and preserves transparency, making it right for logos, icons, and graphics with sharp edges. WebP is a modern format that usually beats both on file size at comparable quality and supports transparency too, so it's an excellent default for the web when you don't need older-browser compatibility.

The quality slider applies to JPG and WebP (PNG is always lossless). Because JPG can't store transparency, converting a transparent PNG to JPG needs a background — tick the "fill transparency with white" option to avoid black areas where the transparency was. Every conversion happens locally on the canvas, so your images stay private and there's no upload wait.

Examples

PNG screenshot → WebP for a much smaller web-ready file.
Transparent PNG → JPG with white fill → no black background artefacts.
Batch convert a folder of JPGs to PNG for editing.

Frequently asked questions

Which format should I choose?
JPG for photos, PNG for graphics needing transparency or crisp edges, and WebP for the smallest web files when broad old-browser support isn't required.
Why does my PNG turn black when converted to JPG?
JPG has no transparency, so transparent areas default to black. Enable 'fill transparency with white' to replace them cleanly.
Does converting to PNG improve quality?
No. PNG is lossless but can't recover detail already lost by an earlier JPG. It just stores the current pixels without further loss and can increase file size for photos.
Are the images uploaded?
No. All conversion happens in your browser on the canvas — your files never leave your device.