不会。全部在浏览器中处理，文件不会上传到服务器。

Which formats are supported?

Input: common raster formats plus HEIC/HEIF. Output: PNG, JPEG, or WebP.

How does compression work?

Uses the browser-image-compression library and Canvas in the browser — no server processing.

Yes. Add multiple files and download a ZIP archive.

一次最多 2000 个文件,单文件最大 150 MB。大于 50 MB 的文件标记为「大文件」。
HEIC/HEIF from iPhone is converted in the browser before compression. SVG is not supported.
对于大批量,建议每批不超过 200–500 个文件。
拖入文件夹 — 内部所有图片将被压缩，文件夹结构在 ZIP 中保留。

将图片拖到这里

或点击选择 · 在页面任意位置 Ctrl+V / ⌘V

展开详情收起

Drop, paste (Ctrl+V), or pick images — PNG, JPEG, WebP; HEIC is converted automatically.
Set quality and output format; preview updates live with optional magnifier.
Compress one file or a batch; download individually or as a ZIP.

Are files uploaded?: 不会。全部在浏览器中处理，文件不会上传到服务器。
Which formats are supported?: Input: common raster formats plus HEIC/HEIF. Output: PNG, JPEG, or WebP.
How does compression work?: Uses the browser-image-compression library and Canvas in the browser — no server processing.
Can I process many files?: Yes. Add multiple files and download a ZIP archive.