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Image Format Converter

Convert your images between different formats. Supports PNG, JPEG, WebP, BMP, and ICO formats with quality control.

What is Image Format Conversion?

An image format converter changes images from one file format to another while preserving visual quality as much as possible. Different formats have different trade-offs: JPEG uses lossy compression and is ideal for photographs (small file size, slight quality loss). PNG uses lossless compression and supports transparency — ideal for logos, icons, and graphics with text. WebP is Google's modern format that achieves better compression than both JPEG and PNG and supports both lossy and lossless modes. BMP is an uncompressed format with large file sizes, used in some Windows applications. ICO is the format used for browser favicons and Windows application icons.

How to Use the Image Converter Tool

  1. Click to select or drag and drop one or more image files onto the upload area.

  2. Select the output format: PNG, JPEG, WebP, BMP, or ICO.

  3. For JPEG and WebP output, adjust the quality slider to balance file size and visual quality.

  4. Click Convert to process all selected images.

  5. Download each converted image from the results.

This image converter runs entirely in your browser using HTML Canvas — your images are never uploaded to any server. Supports batch conversion of multiple files at once. Handles PNG, JPEG, WebP, BMP, GIF, and ICO input formats.

Frequently Asked Questions

Which format should I use for web images? Use WebP for the best compression-to-quality ratio on the web — it's supported by all modern browsers. Use JPEG for photographs where transparency isn't needed. Use PNG for images with transparency, text, or sharp edges like logos and icons.

Will converting JPEG to PNG improve quality? No. JPEG is a lossy format, so the compression artifacts are baked into the pixel data. Converting to PNG makes the file lossless going forward, but it cannot restore the quality that was already lost during the original JPEG compression.

What quality setting should I use for JPEG? Quality 80–85% is a good default — it produces files that are significantly smaller than the original while being visually indistinguishable for most images. Quality below 60% produces noticeable compression artifacts.

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