圖片格式轉換

手機端圖片工具箱。在 JPG、JPEG、PNG、WebP、BMP、TIFF 之間互轉;壓縮、裁剪、旋轉、調整大小、把多張圖片拼接成長圖或九宮格。全部在裝置本機完成,檔案不上傳伺服器。

在 App Store 下载

Features

  • Format Conversion: Convert freely between JPG, JPEG, PNG, WebP, BMP and TIFF. Just tap a format chip to pick the target — the conversion runs locally on your device and preserves the original resolution, so output quality stays identical to the source.
  • Smart Compression: Drag the quality slider from 1 to 99, or pick from nine preset chips (10/20/30/40/50/60/70/80/90) to match your use case. The original and compressed file sizes are shown side by side so you can see the savings before you save.
  • Rotate and Flip: Rotate a single image left or right in 90° steps, or flip it horizontally or vertically with a single tap. EXIF orientation is detected and corrected automatically before export, so the file opens the right way up everywhere.
  • Free Crop: Use the built-in crop tool to trim away unwanted edges, lock to a fixed ratio like 1:1, 4:3 or 16:9, or freely drag the frame to keep exactly the part of the image you want.
  • Resize: Scale an image up or down to a target width and height in pixels. Choose from preset resolutions for common use cases or enter custom dimensions — and toggle aspect-ratio lock to prevent distortion.
  • Photo Stitching: Combine up to 20 photos into a single image. Pick vertical mode for long chat screenshots, horizontal mode for side-by-side comparisons, or a 3×3 grid for a gallery layout — then drag to reorder before exporting.

Rating: 4.7 (New)

Downloads: 1,000+