免费图片压缩工具
把截图、看板、Pixal3D 导出图先压小,再发给团队或发布出去。
先在本地压小图片,再发评审链接或导出交付。
关于这个工具:免费图片压缩工具
Reduce image file size locally in the browser before uploads, review threads, screenshots, and final exports. 无需上传——全部处理都在你的浏览器本地完成,兼顾隐私与速度。
常见用法
- 70-80 的质量通常已经够发文档和评审。
- 超大截图可以顺手限制最大宽度,体积会更可控。
- 所有处理都留在你的浏览器里。
压缩图片,而不是毁掉它
压缩是提升页面速度最省力的一招:大多数照片被以远超屏幕能显示尺寸的体积发出去。先压到你要展示的尺寸,再压到看起来还干净的质量。
按正确顺序压缩
- 1
先改尺寸,再压质量
一张 4000 像素的照片显示在 800 像素的栏里,无论压得多好,五分之四的字节都是浪费。
- 2
放到 100% 尺寸下比对
缩略预览看不出压缩损伤,实际尺寸下一眼就看得见。按它「会被看到的尺寸」来判断。
- 3
原始文件留着
压缩有损且不可逆。把源文件存档,压一份副本用于交付。
图片压缩常见问题
- 压到什么程度看不出差别?
- 取决于内容:平滑渐变能承受得比细密纹理多得多。按真实显示尺寸量,而不是信一个数字。
- 压缩会永久损失画质吗?
- 有损格式会。保留原图,把压缩后的文件当成一次性交付物。
- 压缩是本地吗?
- 是,而且免费。处理在你的浏览器本地完成,不上传文件,也不消耗积分。
拖入文件或点击浏览
80%
等待文件中
先添加一个文件再开始。
原始大小
-
输出大小
-
已保存
-
仅在浏览器本地处理,不上传。
原始大小
等待文件中
输出大小
等待文件中
小提示
- 70-80 的质量通常已经够发文档和评审。
- 超大截图可以顺手限制最大宽度,体积会更可控。
- 所有处理都留在你的浏览器里。
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