AmberPic

圖片調整大小

將圖片調整為精確尺寸或百分比。支援批次處理。

Drop your images here

or click to browse. Supports JPG, PNG, WebP, GIF

How It Works

1

Upload

Select one or multiple images from your device

2

Configure

Adjust quality, format, and dimensions as needed

3

Download

Get your processed images instantly, no upload to servers

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Sources & Technical References

WebAssembly codecs used by this tool:

  • libheif — HEIC/HEIF decoding (used by iPhones)
  • libwebp — WebP encoding/decoding (Google)
  • libaom / libavif — AVIF encoding (Alliance for Open Media)
  • mozjpeg — Improved JPEG encoder (Mozilla)
  • oxipng — PNG optimizer
  • MediaPipe — Face detection (for blur tools)

Standards followed:

All processing happens client-side using WebAssembly modules. No image data is transmitted to any server. The processing speed and quality are equivalent to native desktop tools.