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File size in KB or dimensions in pixels: which should you change?
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KB / MB ↓
How to compress a photo to 100, 200 or 500 KB
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PNG → JPG
What happens to transparency when PNG becomes JPG?
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WebP → JPG
Convert WebP to JPG when an upload rejects your photo
Help and related tools
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JPG to PNG
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JPG to WebP
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PNG to WebP
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WebP to PNG
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Compress JPG images
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Compress PNG images
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Compress WebP images
Start with your photo’s purpose
Make square product photos
Keep your whole product visible in a square image. Add padding, choose a background and output dimensions, and check the JPG size before uploading to your shop.
Prepare a JPG for an online form
Prepare a JPG for an application or online form. Start with a 100, 200 or 500 KB target, set any required pixel dimensions, and check the actual output before uploading.
Prepare photos for social media
Instagram Photo Resizer · Fit Without Cropping
Resize photos for Instagram posts and stories. Keep the full photo with borders or crop to fill, then check dimensions and file size before downloading a JPG.
YouTube Thumbnail Resizer · Compress Thumbnail Images
Fit a YouTube thumbnail to 16:9 and reduce its file size. Preview the crop and check pixel dimensions and the size target before downloading your JPG.
TikTok Photo Resizer · Fit Portrait Photos with Borders
Prepare portrait or square images for TikTok photo posts. Crop, add borders and resize, then check the actual JPG file size and preview before downloading.
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