Resize JPEG
Resize JPEG photos to custom dimensions with precision controls.
Resize JPEG, PNG, WEBP or GIF images with pixel-perfect accuracy.
or drop images here
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Need to change the dimensions of a JPEG file? Our 免费 JPEG resizer lets you set exact pixel dimensions, scale by percentage, or fit to predefined sizes for social media and web. The tool uses high-质量 resampling specifically optimized for JPEG format characteristics. Whether you are creating thumbnails, preparing 图片 for a specific display size, or standardizing dimensions across a photo set, the resizer delivers clean results with no 质量 loss on downsizing. 上传 individual JPEG files or process entire batches with the same settings. Set width only, height only, or both — with optional aspect ratio locking to prevent distortion. Everything runs in your browser for speed and privacy.
如何 调整大小 JPEG
上传您的图片
Click "Select Files" or drag and drop your 图片 onto the upload area. Multiple files can be uploaded for batch resizing.
Set Target Dimensions
Enter exact pixel dimensions, choose a percentage scale, or select a platform preset. Lock the aspect ratio to prevent distortion.
调整大小 Your 图片
Click "调整大小" and the tool will scale your 图片 to the specified dimensions using high-质量 resampling.
下载结果
下载 resized 图片 individually or as a ZIP. Preview dimensions before downloading.
为什么 调整大小 JPEG?
Precise pixel-level control over JPEG dimensions
Format-specific resampling optimized for JPEG
Scale by percentage or set exact dimensions
Aspect ratio lock prevents distortion
Batch resize multiple files simultaneously
免费 with no limits or account required
使用场景
最佳实践 调整大小 JPEG
Start with the highest resolution JPEG source available
Lock aspect ratio to prevent stretching when changing dimensions
调整大小 before applying compression for the most efficient workflow
Preview the resized JPEG at target dimensions before downloading
Use batch mode for consistent dimensions across 图片 sets