Helpful information

Format	Compression	Transparency	Animation	Browser support	Best for
WebP	★★★★★	✓	✓	95%+	Best for the web (recommended)
AVIF	★★★★★	✓	✓	85%+	Optimized for modern browsers
JPG	★★★☆☆	✗	✗	100%	Photos and compatibility
PNG	★★☆☆☆	✓	✗	100%	Logos, icons, and screenshots
GIF	★★☆☆☆	✓	✓	100%	Simple animation
BMP	★☆☆☆☆	✓	✗	100%	Lossless archival copy
ICO	★★★☆☆	✓	✗	100%	Favicons and Windows icons

Uploaded files never leave your device. All processing uses your local computer.

70-85%

Recommended settings

Optimized for website images. Delivers major size savings with little visible difference in quality.

50-70%

High compression

Ideal for thumbnails and previews when minimizing file size is the priority.

85-95%

High quality

Best for product photos, portfolios, and other images where quality matters.

95-100%

Maximum quality

For printing and archival copies. Offers little compression but preserves image quality almost perfectly.

Q. Are my images uploaded to a server?

No. Every conversion runs in your browser. Images are never sent to an external server, making the process completely private safe.

Q. Why did the transparent background disappear?

Transparency is always preserved where the format supports it. JPG conversions of transparent images are blocked because JPG has no alpha channel; PNG, WebP, AVIF, GIF, BMP, and ICO retain transparency.

Q. Why won't my AVIF file open?

AVIF is a modern format that may not work in older browsers or applications. Use WebP or JPG when compatibility matters.

Q. Why is the converted file larger?

Converting an already optimized image to PNG or BMP may make it larger. If your goal is a smaller file, choose WebP or AVIF is recommended.

Q. Why can't I convert to ICO?

ICO is designed mainly for small icons such as 16×16 or 32×32. Resize large images before converting them.

For websites: WebP at 80% → best balance of file size and quality

For mobile apps: WebP at 70% → faster page loading

For email attachments: JPG at 75% → broad compatibility and a reasonable file size

For logos and icons: PNG at 100% → transparency and maximum sharpness

For favicons: ICO + resize to 32×32 → browser tab icon

WebP conversion is advantageous when you want to maintain image quality while reducing the size of photos to be uploaded to a website or blog. Most modern browsers support it, and you often get smaller files than JPG/PNG.

PNG supports transparent backgrounds, while JPG does not. Converting a transparent PNG to a JPG requires the background to be opaque, so choose PNG, WebP, or AVIF to maintain transparency.

It is possible. Even for the same image, the capacity can be reduced by selecting an efficient format and appropriate quality, such as WebP or AVIF. Already optimized originals may be larger after conversion, so compare the resulting sizes.

Yes. Select multiple images and convert them with the same output format and quality settings. Current safe limits are up to 100 MB per file and 50 files per batch; total size and resolution limits may vary with device memory.

Image Converter Online (JPG, PNG, WebP & AVIF)

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Estimated size by format (Estimated from pixel count; actual size varies with image content)

Format recommendations

Helpful information

Image format comparison

Quality settings guide

Frequently asked questions (FAQ)

Tips

When is WebP conversion most advantageous?

What happens to the transparent background when converting JPG to PNG?

Can I reduce the size just by converting the image?

Can I convert multiple images to WebP, JPG, or PNG at once?