Convert Image Format
Convert images between JPG, PNG, and WebP formats instantly in your browser. Adjust quality for JPEG and WebP output. Free, private, and browser-based. Your images never leave your device.
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Supports JPG, PNG, WebP, GIF, BMP - up to 50 MB
Format conversion tips
JPEG for photos
JPEG is ideal for photographs and complex images with many colors. Use high quality (80%+) to preserve detail.
PNG for graphics
PNG is best for screenshots, illustrations, and images with transparency. Lossless compression preserves sharp edges.
WebP for web
WebP produces smaller files than JPEG and PNG with similar quality. Great for web pages and online storage.
Quality slider
For JPEG and WebP, adjust the quality slider to balance file size and visual quality. Lower quality means smaller files.
Why convert image formats
Different image formats serve different purposes. JPEG is the standard for photographs because it produces small files with good quality. PNG preserves sharp edges and supports transparency, making it ideal for screenshots, logos, and graphics. WebP is a modern format that typically produces smaller files than JPEG with equivalent quality.
Converting between formats lets you optimize your images for their intended use. A photograph saved as PNG would be much larger than the same image as JPEG. A PNG logo with transparency needs to stay as PNG or be converted to WebP for web use. Our tool handles all these conversions instantly in your browser.
All processing happens locally using the Canvas API. Your images are never uploaded to any server, ensuring complete privacy. The quality slider for JPEG and WebP lets you fine-tune the balance between file size and visual quality.
Frequently asked questions
What formats can I convert between?
You can convert between JPEG, PNG, and WebP formats. Each format has different strengths: JPEG is best for photos, PNG preserves transparency and sharp edges, and WebP offers the best compression for web use.
Does converting to a different format affect image quality?
Converting between formats involves re-encoding the image, which can affect quality. JPEG uses lossy compression so repeated conversions should be avoided. PNG is lossless. WebP offers both lossy and lossless modes.
Can I adjust the output quality?
Yes. For JPEG and WebP output, a quality slider appears that lets you choose between lower quality (smaller files) and higher quality (larger files). PNG is always lossless.
Are my images uploaded to a server?
No. All conversion happens locally in your browser using the Canvas API. Your images never leave your device and are never sent to any server.
Will my image dimensions change?
No. The output image has exactly the same pixel dimensions as the input. Only the format and (optionally) quality change.