Click or drag & drop an image here
Are my images uploaded? / 圖片會上傳嗎？
No — all compression happens locally in your browser using Canvas. Your images never leave your device. 不會，全部用瀏覽器 Canvas 在本機壓縮，圖片不外傳。
Which formats? / 支援哪些格式？
Input: any image. Output: JPG, WebP or PNG. WebP usually gives the smallest size. 輸入任意圖片，輸出 JPG/WebP/PNG，WebP 通常最小。
About this free image compressor
Shrink and resize JPG, PNG and WebP images right in your browser. Because compression happens on your device, your photos are never uploaded — ideal for private images and slow connections.
How to use
- Drop in or select an image.
- Adjust the quality level or target size.
- Download the smaller file.
Why use it
Large images slow down websites and fill up storage. Compressing before you upload speeds up pages and saves bandwidth, and doing it locally keeps private photos private.
FAQ
Are my images uploaded to a server?
No — compression runs entirely in your browser; files never leave your device.
Which formats are supported?
Common web formats including JPG, PNG and WebP.
Will quality drop noticeably?
You control the quality/size trade-off; modest compression is usually visually lossless.