Convert Image Format
Convert images between PNG, JPG, WebP, and BMP formats instantly. Runs 100 % in your browser — your files are never uploaded to any server.
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About This Tool
How to Use
- 1Click the upload area or drag and drop a single image file (JPG, PNG, WebP, BMP, or GIF).
- 2Select the desired output format from the "Output Format" dropdown — choose PNG, JPG, or WebP.
- 3If you selected JPG or WebP, use the quality slider to balance file size and image quality (10-100). For PNG output the slider is ignored because PNG is lossless.
- 4Click "Convert" to start the conversion. The tool draws your image on an invisible canvas and exports it in the new format.
- 5Preview the converted image directly in your browser, review the file-size comparison, and click "Download" to save the result.
When to Use
- •When a website or application requires a specific image format that your current file does not match.
- •When you want to reduce file size by converting a lossless PNG to a compressed JPEG or WebP.
- •When you need to convert a WebP image to PNG or JPG for broader compatibility with older software or email clients.
- •When preparing images for social media platforms that prefer certain formats for optimal display.
- •When converting a BMP or GIF screenshot to a more modern and efficient format like PNG or WebP.
- •When you need a quick format change without installing desktop software like Photoshop or GIMP.
Tips & Tricks
- ✨Use PNG when you need transparency or pixel-perfect lossless quality — ideal for logos, icons, and graphics with sharp edges.
- ✨Choose JPEG for photographs and complex images where small file size matters more than preserving every pixel.
- ✨WebP offers the best compression-to-quality ratio for web use, but verify that your target audience's browsers support it.
- ✨Set the quality slider to 80-90 for JPEG/WebP to get a good balance between visual fidelity and file size.
- ✨Converting from a lossy format (JPEG) to a lossless one (PNG) will not recover lost quality — it only changes the container.
- ✨If your source image has a transparent background, avoid converting to JPEG because JPEG does not support transparency; the transparent area will be filled with white.
Frequently Asked Questions
No. The entire conversion process runs locally in your browser using the HTML5 Canvas API. Your files never leave your device, ensuring complete privacy.
You can upload JPG, JPEG, PNG, WebP, BMP, and GIF images. The tool can convert them to PNG, JPG (JPEG), or WebP output formats.
No. The image dimensions (width and height in pixels) remain exactly the same. Only the file format and encoding change.
The quality slider controls the compression level for JPEG and WebP output. A value of 100 gives the highest quality (largest file), while 10 produces the smallest file at the cost of visible compression artifacts. The slider has no effect on PNG output because PNG is always lossless.
No. Converting from a lossy format like JPEG to a lossless format like PNG preserves exactly what is in the JPEG — it cannot recover detail that was already lost during the original JPEG compression. The resulting PNG will actually be larger in file size.
JPEG does not support transparency. Any transparent areas in the source image will be filled with a white background in the JPEG output. If you need to preserve transparency, choose PNG or WebP as the output format.
Yes. The maximum file size is 20 MB per image. This is more than enough for most photographs and web graphics.
This tool processes one image at a time to keep the interface simple and the preview accurate. If you need to batch-convert images, run the tool multiple times or look at our dedicated batch processing tools.
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