什麼是 圖片壓縮器?

免費線上圖片壓縮工具。壓縮 PNG、JPG 與 WebP 圖片,自訂品質參數,所有處理在瀏覽器中完成。

為什麼要使用 圖片壓縮器?

  • 可調整品質(1-100)
  • Output as JPEG or WebP
  • 壓縮前後預覽比對
  • Shows original vs compressed size with reduction percentage

如何使用 圖片壓縮器 — 逐步教學

1

Drag and drop an image or click to upload.

2

調整品質滑桿(1-100)並選擇輸出格式。

3

Preview the compressed image and see the size reduction.

4

Download the compressed image.

圖片壓縮器適合誰?

  • 網頁優化
  • 電子郵件附件
  • 社群媒體
  • 節省儲存空間

圖片壓縮器 — 常見問題

How does image compression work?

The tool uses the HTML5 Canvas API to redraw the image at the specified quality level. JPEG and WebP use lossy compression, which achieves smaller file sizes by discarding some image data that is less visible to the human eye.

What quality should I use?

For most web images, quality 75-85 provides a good balance between file size and visual quality. For thumbnails or small images, 60-70 is usually sufficient. For photographs requiring high detail, use 90+.

準備好使用 圖片壓縮器 了嗎?

免費線上工具 — 在瀏覽器中運作,無需註冊。立即開始使用。

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