[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"page:\u002Fimage-compress":3},{"id":4,"slug":5,"kind":6,"componentKey":7,"title":8,"keywords":9,"description":10,"robots":11,"cateId":12,"orderIdx":13,"logo":14,"updatedTime":15,"guide":16,"faq":17,"status":18,"tool":19,"related":26,"platform":51,"shortDesc":51,"longDesc":51,"images":52,"downloadUrl":51,"samePlatform":51,"onlineAlternatives":51,"shareRecommend":53},59,"\u002Fimage-compress","tool","ImageCompress\u002FImageCompress","免费在线图片压缩到指定大小","图片压缩,图片压缩在线,在线免费图片压缩,图片压缩到指定大小,图片压缩工具,图片压缩免费,图片压缩大小,照片压缩,批量图片压缩,图片缩小', '免费在线图片压缩工具，拖入 jpg、png、webp 照片即可按质量压小，也能设定目标大小自动压到指定 KB 以内，支持按长边缩放与批量处理，全程浏览器本地完成，图片不上传服务器。","免费在线图片压缩工具，拖入 jpg、png、webp 照片即可按质量压小，也能设定目标大小自动压到指定 KB 以内，支持按长边缩放与批量处理，全程浏览器本地完成，图片不上传服务器。","index,follow",5,0,"\u002Ftool-icons\u002Fimage-compress.svg","2026-10-18 20:45:52","图片压缩在浏览器里完成画质与体积的权衡：照片先解码成位图，再按你选的质量重新编码成 jpg 或 webp，通常几秒就能把一两兆的图压到几百 KB，原图不会发送到服务器。\r\n怎么用：① 把 jpg、png、webp、bmp 图片拖进上传区（一次最多二十张）；② 选压缩方式——「质量优先」拖滑杆定画质，「目标大小」填不超过多少 KB，工具自动二分搜索合适的质量；需要时再限一个长边像素；③ 点开始压缩，对比每张的前后体积，逐个下载或一键打包 zip 下载。\r\n参数与边界：透明图输出 jpg 会铺白底，要保透明请选 webp 或 png；png 是无损格式，想明显变小请转成 webp 或 jpg；目标大小设得过小时低画质会明显发糊，压不进目标时工具会给出最小可用结果并提示；截图与线条图用 webp 损失小，照片用 jpg 或 webp 都行；EXIF 信息（拍摄时间、GPS）在重编码时会被去掉，介意请保留原图。\r\n典型场景：报名与上传系统有附件大小限制、网页配图压小加快加载、手机拍的大图发到聊天群、按平台要求缩小照片、批量整理相册。\r\n注意事项：解码、压缩与体积计算全部在浏览器本地完成，图片不上传、不留存，刷新页面即清空；超大全景图受设备内存限制可能失败，建议先裁切再压；换格式请用图片格式转换页，把多张图拼成长图请用图片拼接页。","[{\"question\":\"能压到指定的 KB 数吗？\",\"answer\":\"能。切到「目标大小」模式填一个上限（如 100KB），工具会自动搜索画质把每张图压进上限以内；实在压不进的是少数，会给出最小的可用结果并标记提示，可改用 webp 输出或限制长边再试。\"},{\"question\":\"三步怎么用？\",\"answer\":\"第一步拖入图片；第二步选择质量优先或目标大小模式，必要时设长边上限与输出格式；第三步点开始压缩并下载结果。\"},{\"question\":\"图片会被上传吗？\",\"answer\":\"不会。解码、重新编码与体积计算全部在浏览器本地完成，图片不出这台设备，页面上也不会发出任何上传请求。\"},{\"question\":\"为什么我的 PNG 压完反而更大？\",\"answer\":\"PNG 是无损格式，重新编码往往省不了多少。要压体积请把输出选成 jpg 或 webp；需要保留透明通道时选 webp，工具对透明图不会强转 jpg。\"},{\"question\":\"对画质有损失吗？\",\"answer\":\"有损压缩必然交换画质：质量滑杆越低体积越小、细节损失越多。网页配图与聊天场景用 65–75 肉眼几乎无感，重要照片请另留原图，压缩结果不可逆。\"}]",1,{"id":20,"title":21,"desc":22,"logo":14,"url":5,"cateId":12,"cate":23,"cateSlug":24,"type":25,"orderIdx":13},47,"图片压缩","免费在线图片压缩，按质量批量压小或压到指定 KB，支持限制长边，浏览器本地处理，图片不上传服务器。","图片与设计","image-design","router",[27,33,39,45],{"id":28,"title":29,"desc":30,"logo":31,"url":32,"cateId":12,"cate":23,"cateSlug":24,"type":25,"orderIdx":13},8,"在线图片处理","在线图片裁剪，标注，滤镜，画等操作","https:\u002F\u002Fwww.qiguangit.com\u002Ftools-admin\u002Ffile\u002Ffile\u002Fimg.png","\u002Fsignimage",{"id":34,"title":35,"desc":36,"logo":37,"url":38,"cateId":12,"cate":23,"cateSlug":24,"type":25,"orderIdx":13},16,"色板","包含纯色、渐变与阶梯色和常用色彩组合","https:\u002F\u002Fwww.qiguangit.com\u002Ftools-admin\u002Ffile\u002Ffile\u002F%E8%B0%83%E8%89%B2%E6%9D%BF.png","\u002Fpalettes",{"id":40,"title":41,"desc":42,"logo":43,"url":44,"cateId":12,"cate":23,"cateSlug":24,"type":25,"orderIdx":13},17,"二维码生成","在线生成带logo、透明、艺术的二维码","https:\u002F\u002Fwww.qiguangit.com\u002Ftools-admin\u002Ffile\u002Ffile\u002F%E4%BA%8C%E7%BB%B4%E7%A0%81.png","\u002Fqrcode",{"id":46,"title":47,"desc":48,"logo":49,"url":50,"cateId":12,"cate":23,"cateSlug":24,"type":25,"orderIdx":13},24,"文本转图片","在线文字转图片工具，可以快速将文本文字转换成图片，支持自定义文档大小，字体大小以及前背景色，所见即所得，图片实时生成更新，一键下载图片。","https:\u002F\u002Fwww.qiguangit.com\u002Ftools-admin\u002Ffile\u002Ffile\u002Ftext_to_img.png","\u002FtextToImg",null,"",[]]