Does this tool upload my images to a server?

No. All resizing and compression happens locally in your browser using the Canvas API. Your images never leave your device.

What image formats are supported?

JPG, PNG, and WebP are supported for both input and output. PNG is best for graphics with transparency; WebP produces the smallest file sizes.

What quality setting should I use for web images?

For photos, 70-85% quality is a good balance. For logos and graphics, use PNG which is lossless.

Resize and Compress Images Online — Free, No Upload

Resize and compress images for web, social media, or email — right in your browser with no upload needed. Supports JPG, PNG, and WebP. See before/after previews and file size savings instantly.

Upload image (JPG, PNG, WebP)

Resize & compression

Width (px)

Height (px)

Lock aspect ratio

Quality80%

70–85% is a good balance for photos.

Output format

Original

Upload an image

Optimized

Run resize & compress

File size comparison

Original

—

Optimized

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Resize and Compress Images Online — Free, No Upload

—All resizing and compression happens locally in your browser — images are not uploaded to any server.
—For photos, JPEG or WebP at 70–85% quality is a good balance between quality and file size.
—PNG is best for sharp graphics, logos, and images that require transparency.
—Very large images may take a moment to process; resizing to 1920×1080 or smaller is recommended for web use.

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