免费图片格式转换工具
把 PNG、JPG、WEBP 在本地互转,适合 Pixal3D 上传前、发文档前或交付前整理格式。
本地完成图片格式转换,再上传、评审或交付。
关于这个工具:免费图片格式转换工具
Convert PNG, JPG, and WebP images locally in the browser for uploads, reviews, listings, and handoff. 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
- 想要网页体积更小,优先试 WEBP。
- 需要透明背景时,继续用 PNG。
在本地安全地转换图片格式
格式转换是最不起眼、也最常做的图片操作。放在浏览器里做,未公开的素材就不用交给陌生服务器,你也能在每个质量档位下直接比对体积,而不是靠猜。
不靠猜地选格式
- 1
按去向决定格式
给网页用 WebP;需要透明或无损像素用 PNG;只有在「必须够小、且源图没有透明通道」时才用 JPEG。
- 2
在你要发布的那个质量档位比对体积
质量 90 和质量 60 的体积可能差三倍,而在屏幕上看几乎没区别。选之前先量。
- 3
看边缘和渐变
JPEG 的压缩痕迹最先出现在锐利边缘和平滑的渐变里。接受结果前,放大看一个角落。
图片格式转换常见问题
- 该选哪种格式?
- 大多数网页场景用 WebP;需要透明或精确像素用 PNG;兼容性比画质更重要时才用 JPEG。
- 图片会被上传吗?
- 不会。转换在你的浏览器本地完成,私有素材不会离开你的电脑。
- 要消耗积分吗?
- 不用。本站的本地图像工具免费,也不消耗积分。
拖入文件或点击浏览
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
- 想要网页体积更小,优先试 WEBP。
- 需要透明背景时,继续用 PNG。
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Free Transparent PNG Maker
Make a selected background color transparent and export a clean transparent PNG without uploading the image.
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Generate favicon.ico and common PNG favicon sizes locally in the browser from a logo or source image.
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