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Image resizer

Crop and resize images on-device without a trip through a remote farm.

This tool processes files and text locally in your browser. Your content is not uploaded or stored by this site.

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What this tool does

You can drag a crop rectangle on the first image, then scale. The same relative crop is applied to every file in the batch. Resizing uses canvas interpolation. It is appropriate for web graphics and previews, not a photographic RAW pipeline.

How to use it

  1. Drop images.
  2. Drag the crop rectangle if you need to cut first. Reset crop uses the full frame.
  3. Set width, height, or percent. Keep aspect ratio locked unless you intend to stretch.

Supported input

  • Raster images the browser can decode

Output

  • Resized raster images

Privacy

This tool processes files and text locally in your browser. Your content is not uploaded or stored by this site.

ConvertPass does not include your input in analytics, URLs, or error reports. Encoding: Browser decoder / canvas encoder. Limit: 10 files, 25 MB each (25.00 MB).

Limitations

  • Ordinary resize interpolates pixels. It cannot invent photographic detail. Use the AI upscaler for 2×/4× super-resolution.
  • SVG is not a first-class vector resize in this tool.
  • Batch crop is relative (percent of each image), not a shared pixel rectangle.

Example

Input
banner.png 2400×800
Output
banner.png 1200×400 (50%)

Troubleshooting

The image looks soft
You downscaled a photograph a long way, or you upscaled. For photographs, start from a larger original rather than enlarging a small export.

FAQ

Does lock aspect use the original ratio?

It uses the cropped source. Providing only a width computes height from that ratio. Unlock it only if you intend to stretch.

Can I resize to social presets?

Use the social image resizer for named presets such as Open Graph 1200×630.

Is the resize done on a worker?

Encoding happens on the main thread with cancellation between files. Huge images may still hitch the UI; the pixel cap exists for that reason.

Will metadata survive?

No. Canvas export strips EXIF and PNG text chunks. Use the metadata remover if that is the goal, or keep the original file.

Is there an AI upscaler?

Yes. The AI upscaler enlarges a photo 2× or 4× in this browser. It has a tighter pixel cap than this resizer.

Can I crop before resizing?

Yes. Drag the rectangle on the preview. Corner handles resize it. Reset crop restores the full frame. In a batch, the same relative crop is applied to each image.

Related tools

  • AI image upscaler

    Enlarge a small image in your browser, then compare with a before/after slider.

  • Social image resizer

    Export named social sizes locally, with the pixel dimensions stated up front.

  • Image converter

    Convert images on-device, with honest limits for animation and AVIF support.

Related guides

Related formats

Last reviewed 16 August 2026. Report a problem. Reports do not include your input.