📷 Image Format Converter
Convert images between PNG, JPEG, WebP, BMP, GIF, and ICO. All processing in your browser.
Last updated: May 18, 2026 · By Λ
Drop images here or click to browse
PNG, JPEG, WebP, BMP, GIF - up to 50 MB eachFree Online Image Format Converter
Convert images between PNG, JPEG, WebP, BMP, GIF, and ICO formats instantly. Each file is decoded, redrawn on a canvas, and re-encoded entirely by your own browser, so the originals stay on your computer. Upload multiple files at once for batch conversion, adjust quality for lossy formats like JPEG and WebP, and compare file sizes before and after. Perfect for converting screenshots, photos, icons, and web graphics. No account needed, no limits, completely free.
What is an Image Format Converter?
Different image formats serve different purposes. PNG supports transparency and lossless quality, making it ideal for graphics and screenshots. JPEG uses lossy compression to create small file sizes for photographs. WebP combines the best of both worlds with strong compression and transparency support. BMP stores uncompressed pixel data, GIF supports simple animations, and ICO is the standard format for website favicons and application icons.
This free online image converter lets you switch between PNG, JPEG, WebP, BMP, GIF, and ICO formats instantly. Whether you need to convert a PNG screenshot to JPEG for email, transform photos to WebP for faster web loading, or create an ICO file for a favicon, this tool handles it all. You can process multiple files in a single batch, adjust quality settings for lossy formats, and compare file sizes before and after conversion. The whole pipeline, from reading a file to producing its download link, executes on your device with no upload step at any point.
How to Use This Tool
- Drop one or more images onto the upload zone, or click to browse your files. The tool accepts a wide range of image formats including PNG, JPEG, WebP, BMP, and GIF.
- Select your desired output format from the dropdown menu. Choose from PNG, JPEG, WebP, BMP, GIF, or ICO.
- If converting to JPEG or WebP, adjust the quality slider to balance file size and visual quality. Higher values preserve more detail while lower values produce smaller files.
- Click "Convert" to process all loaded images. Each result shows the original and converted file sizes, the format change, and a download button. You can download individual files or all files at once.
Key Features
- Six Output Formats - Convert to PNG, JPEG, WebP, BMP, GIF, or ICO. Each format is suited to different use cases, from web publishing to application development.
- Batch Conversion - Upload and convert multiple images simultaneously. Each file is processed independently and can be downloaded individually.
- Quality Control - Adjust compression quality for lossy formats like JPEG and WebP, giving you precise control over the trade-off between file size and image quality.
- File Size Comparison - See the original and converted file sizes side by side, so you can evaluate whether the format change achieves your size goals.
- Complete Privacy - Conversion takes place inside the browser tab itself; no copy of any photo is sent to, stored on, or handled by an outside server.
Frequently Asked Questions
Which format should I choose for web images?
WebP is generally the best choice for web images because it offers excellent compression with support for both lossy and lossless modes, as well as transparency. JPEG remains a solid option for photographs when broad compatibility is needed. PNG is best when you need lossless quality or transparent backgrounds, such as for logos and icons.
Will converting between formats reduce quality?
Converting from a lossy format (like JPEG) to another lossy format introduces an additional round of compression, which can reduce quality slightly. Converting from a lossless format (like PNG) to JPEG or WebP will apply lossy compression for the first time, controlled by the quality slider. Converting to PNG is always lossless and preserves all pixel data.
Can I convert images to ICO for favicons?
Yes. Select ICO as the output format and upload your image. The converter will produce an ICO file suitable for use as a website favicon or application icon. For best results, start with a square image that is at least 256x256 pixels.
Is there a file size limit for uploads?
Because the tool processes images in your browser's memory, practical limits depend on your device. Most modern devices handle files up to 50 MB without issues. Very large images or many files processed simultaneously may cause slower performance on devices with limited memory.