免費線上圖片壓縮工具｜JPG、PNG、WebP - Pic Compress

圖片壓縮在保持可接受的視覺品質的同時減小圖片的檔案大小。這使得圖片載入更快，佔用更少的儲存空間。

我們支援 JPG/JPEG、PNG、WebP、GIF、SVG 和 AVIF 格式。您可以在這些格式之間進行壓縮和轉換。

壓縮可能會降低品質，但我們的工具允許您控制品質級別。您也可以使用無損壓縮來保持原始品質，同時仍能減小檔案大小。

對於網頁使用，70-85% 的品質通常能提供良好的平衡。用於列印時，使用 90-100%。較低的設定（50-70%）適用於縮圖。

您的檔案完全安全。所有壓縮都在您的瀏覽器中使用 JavaScript 本地進行。沒有檔案會上傳到我們的伺服器。

可以！我們的工具在所有現代瀏覽器上都能工作，包括行動裝置。

有損壓縮透過刪除一些圖片資料來減小檔案大小，這可能會稍微影響品質。無損壓縮在不損失任何品質的情況下減小檔案大小，但壓縮效果較小。

Yes! You can upload and compress up to 20 images simultaneously. Our tool processes all images in parallel for maximum efficiency.

Our tool works on all modern browsers including Chrome, Firefox, Safari, Edge, and Opera. We recommend using the latest browser version for best performance.

No installation required. Our tool runs entirely in your browser. Simply visit the website and start compressing images immediately.

Yes! Our tool is fully responsive and works on smartphones, tablets, and desktop computers. The interface adapts to your screen size.

If compression fails, try refreshing the page and uploading the image again. Ensure your browser is up to date and the file is not corrupted.

Yes! Our tool allows you to convert images between different formats during compression. For example, you can convert PNG to JPG or WebP.

Choose target size based on your use case: 10-50KB for thumbnails and icons, 50-100KB for email attachments, 100-200KB for web images, 200-500KB for high-quality photos.

There is no daily limit on the number of images you can compress. You can process up to 20 images per batch, and you can run as many batches as needed.

No. All processing happens locally in your browser. We never store, upload, or access your images. Your files remain completely private.

Yes! You can use compressed images for any purpose, including commercial projects. Our tool is free to use without restrictions.

This can happen with very small images or images with simple content. In these cases, the compression overhead may result in minimal size reduction.

For best results: resize images before compression, choose appropriate quality settings (70-85% for web), use target size feature for specific requirements, and consider converting to WebP or AVIF formats.