This tool tests your browser's actual AVIF encoding support before enabling the option, since unsupported browsers silently produce a PNG instead of an error. If it's disabled, try a recent version of Chrome or Edge on desktop.
Free Image Tool
Image Converter & Transparency Tool
Convert images to modern web formats like WebP and AVIF for faster page loads, or turn a solid-color background transparent — all processed locally in your browser.
- ✔ WebP & AVIF conversion
- ✔ Transparent PNG maker
- ✔ Nothing uploaded
- ✔ Free Forever
Smaller Images, Faster Pages
WebP and AVIF are the modern standard for web images — often 30–80% smaller than JPEG or PNG at equivalent visual quality, which directly improves page load speed and Core Web Vitals scores.
This free tool converts images entirely in your browser using the Canvas API — nothing is uploaded anywhere — and also includes a transparency tool for turning a solid-color background into a real transparent PNG, useful for logos and simple product shots.
How It Works
1. Upload an Image
Drag and drop or choose a file — nothing leaves your browser.
2. Pick a Format
WebP or AVIF, with a quality slider for lossy formats.
3. Convert
See the before/after file size, right in the browser.
4. Download
Save the converted file, ready to use.
Click to upload or drag and drop an image
JPG, PNG, GIF, or WebP
Click to upload or drag and drop an image
Shrinks file size via resizing and/or quality reduction
Click to upload or drag and drop an image
JPG, PNG, WebP, GIF
Click to upload or drag and drop an image
Works best with a solid-color background
Format Guide
Which Format Should You Use?
WebP
The safe modern default — supported by essentially every current browser, with strong compression for both photos and graphics.
AVIF
The best compression available today for photographic images, at the cost of slower encoding and support that isn't quite universal yet.
JPEG XL
Technically excellent, but not yet encodable in any browser — worth watching, not yet worth shipping as your primary format.
FAQsImage Converter & Transparency
Why is AVIF greyed out for me?
Why can't I convert to JPEG XL?
As of 2026, no browser supports encoding JPEG XL through the standard web APIs this tool uses. Chrome added JPEG XL decoding behind an experimental flag in version 145, but not encoding, and Safari's support remains partial.
Does the transparency tool use AI background removal?
No. It removes a specific color you click on, within an adjustable tolerance — reliable for solid, flat backgrounds like product or logo shots, but it won't cleanly separate a subject from a complex or textured background.
Is my image uploaded anywhere?
No. All conversion and transparency processing happens locally in your browser using the Canvas API. Nothing is uploaded to any server.