Image Format Converter

Convert images between PNG, JPEG, and WebP formats. 100% client-side — your files never leave your browser.

New to this tool? Click here for instructions

Drag & drop an image here, or click to browse

PNG, JPEG, WebP, GIF, BMP

Upload an image to convert its format.

How to Use the Image Format Converter

  1. Upload an image by dragging it onto the drop zone or clicking to browse. PNG, JPEG, WebP, GIF, and BMP are accepted.
  2. Select the output format — choose PNG for lossless quality, JPEG for photographs, or WebP for the best compression.
  3. Adjust quality for JPEG and WebP output using the slider. Higher values preserve more detail but produce larger files.
  4. Download your converted image. The result card shows the new file size compared to the original.

Understanding Image Formats

Different image formats serve different purposes. JPEG (Joint Photographic Experts Group) uses lossy compression that discards visual information humans are unlikely to notice, producing small files ideal for photographs and complex images. PNG (Portable Network Graphics) uses lossless compression that preserves every pixel exactly, making it the standard for logos, icons, screenshots, and any image requiring transparency. WebP, developed by Google, combines the advantages of both: it supports lossy and lossless compression, transparency, and achieves 25-35% smaller file sizes than JPEG at equivalent visual quality.

When to Use Each Format

  • JPEG — Photographs, social media images, blog hero images. Best when file size matters more than pixel-perfect accuracy.
  • PNG — Logos, icons, screenshots, diagrams, images with text or transparency. Best when visual accuracy is critical.
  • WebP — Web assets where performance matters. Smaller than both JPEG and PNG while maintaining quality. Supported by all modern browsers (Chrome, Firefox, Safari, Edge).

WebP Advantages

WebP typically produces files 25-35% smaller than JPEG and up to 26% smaller than PNG for equivalent quality. This translates to faster page load times, lower bandwidth costs, and better Core Web Vitals scores. Google PageSpeed Insights specifically recommends serving images in WebP format. Converting your existing JPEG and PNG images to WebP is one of the easiest performance wins for any website.

Quality Settings

For JPEG and WebP, the quality slider controls the compression level. At 90-100%, images are virtually indistinguishable from the original. At 75-85%, files are significantly smaller with minimal visible difference — this is the sweet spot for most web images. Below 50%, compression artifacts become noticeable, especially around text and sharp edges. PNG output ignores the quality slider since PNG is always lossless.

Need to resize your images too? Use the Image Resizer & Compressor. For encoding images as data URLs, try the Image to Base64 converter. To create favicon packs from your images, use the Favicon Generator.

Frequently Asked Questions

No. This converter uses the HTML5 Canvas API in your browser. Your images never leave your device. There is no uploading, no server processing, and no data collection.
You can upload PNG, JPEG, WebP, GIF, and BMP images. Output formats include PNG, JPEG, and WebP. The tool preserves image dimensions during conversion.
PNG uses lossless compression and supports transparency, making it ideal for logos and graphics. JPEG uses lossy compression for smaller file sizes, best for photographs. JPEG does not support transparency.
Converting to JPEG or WebP uses lossy compression, so some quality is lost. Use the quality slider to control the trade-off. Converting to PNG is lossless and preserves full quality, but files may be larger.
WebP is a modern image format by Google that provides 25-35% smaller files than JPEG at the same quality. It supports transparency like PNG but with much smaller file sizes. All modern browsers support WebP, making it ideal for web use.