Image Format Converter
Convert images between PNG, JPEG, and WebP — adjust quality, all client-side
How to Use the Image Format Converter
- Upload an image file (PNG, JPEG, WebP, GIF, BMP, etc.).
- Select From and To formats and quality.
- Click Convert and download the result.
Changing the format dropdowns updates the URL for easy sharing. Uses the Canvas API — all processing is local, no uploads.
What is Image Format Conversion?
Image format conversion changes the file type of an image between formats like PNG, JPEG, and WebP while resampling or adjusting quality settings. Different formats serve different purposes: PNG for lossless images with transparency, JPEG for photographs with small file sizes, WebP for modern web delivery with better compression than both.
Common Uses
- Converting PNG screenshots to JPEG to reduce file size for web upload
- Converting images to WebP for better Core Web Vitals and page speed scores
- Removing PNG transparency by converting to JPEG for email or PDF use
- Batch converting design assets between formats for different platforms
Frequently Asked Questions
Should I use PNG or JPEG for web images?
Use JPEG for photographs (smaller file, acceptable quality loss). Use PNG for graphics, logos, screenshots, or any image that needs transparency or pixel-perfect edges. Use WebP for both — it beats both formats in compression with similar quality.
Does converting from JPEG to PNG improve quality?
No. JPEG compression is lossy — quality lost during JPEG encoding cannot be recovered by converting to PNG. Converting JPEG to PNG just produces a larger lossless file of already-compressed image data.
What is WebP and why should I use it?
WebP is a modern image format developed by Google that provides 25–35 % smaller file sizes than JPEG at equivalent quality. All modern browsers support it. Serving WebP improves page load times and Core Web Vitals scores.