JPEG 转 WEBP 在线转换器

只需 3 步，轻松将您的 JPEG 文件转换为 WEBP 格式。

WEBP⌄

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⚙ 可选设置

Resize

Color Filter

DPI

dpi

Crop (px)

在线将 JPEG 转换为 WEBP — 免费快速

WebP是Google专门为使网络更快而创建的。将JPG图像转换为WebP可将文件大小减少25-34%，同时保持同等或更好的视觉质量。所有主流浏览器现在都原生支持WebP——Chrome、Firefox、Edge和Safari 14+。对于网站所有者和开发者，切换到WebP可直接改善Google的Core Web Vitals分数。

为什么将 JPEG 转换为 WEBP？

⚡

更快的页面加载

文件减少25-34%可降低页面重量，显著改善TTFB和LCP分数。

📈

更好的SEO

Google奖励加载更快的页面以获得更高的搜索排名。图像优化是关键因素。

📱

移动优先

更小的WebP文件消耗更少的移动数据，在较慢的连接上渲染更快。

🌐

现代浏览器

Chrome、Firefox、Edge和Safari 14+原生呈现WebP。无需插件。

如何将 JPEG 转换为 WEBP？

上传您的 JPEG 文件

点击「选择文件」或将您的 JPEG 图片拖放上传。

选择 WEBP 作为输出格式

从下拉菜单中选择「WEBP」作为所需输出格式。

转换文件

点击「立即转换」开始将 JPEG 文件转换为 WEBP。

下载 WEBP 文件

转换完成后，下载您已转换的 WEBP 文件。

JPEG

文件扩展名.jpeg
描述JPEG is the most widely used lossy image compression format, ideal for photographs and complex images with many colors.
相关程序Adobe Photoshop, GIMP, Windows Photo Viewer, Preview (Mac)
开发者Joint Photographic Experts Group
MIME 类型image/jpeg

WEBP

文件扩展名.webp
描述WebP provides superior lossless and lossy compression for images on the web. WebP images are typically 25-34% smaller than comparable JPEG or PNG files.
相关程序Google Chrome, Firefox, Adobe Photoshop (with plugin), GIMP
开发者Google
MIME 类型image/webp

✅

Pro tip: 使用HTML <picture>元素提供带JPG回退的WebP以支持所有浏览器。大多数CDN和图像优化服务会自动处理这一点。

免费 JPEG 转换工具

格式指南

JPEG vs WEBP：完整格式指南

功能

JPEG （源）

WEBP （目标）

🗜️压缩

Lossy

Lossy+Lossless

🔍透明度

Not supported — transparent areas always render as solid white or the specified matte color

Full 8-bit alpha channel — same capability as PNG, with better compression efficiency

🎬动画

Not supported

Supported — animated WebP stores multiple frames with per-frame timing data, offering vastly better quality and smaller files than animated GIF

🎨色彩深度

24-bit (8 bits per channel: RGB) — up to 16.7 million colors

24-bit RGB + 8-bit alpha — 16.7 million colors with full alpha transparency

📦文件大小

50 KB – 5 MB per image depending on resolution and quality setting

25–35% smaller than an equivalent-quality JPEG or PNG — typically 30–80 KB for standard web images

🌐浏览器支持

Universal — all browsers, all operating systems, all devices including IE6 and older smartphones

Chrome 23+, Firefox 65+, Edge 18+, Safari 14+, Opera 12+. Not supported in Internet Explorer or Safari prior to iOS/macOS in 2020.

🏆最适合

Photos, web images

Web images, modern apps

常见使用场景：JPEG → WEBP

🛒 E-commerce product images📰 Blog and editorial photos🌐 High-traffic web pages📱 Mobile-first applications🏨 Travel and hospitality sites📊 Portfolio websites

⚠️Use the HTML <picture> element to provide a JPG fallback for Internet Explorer and Safari 13 users. Most modern CDNs (Cloudflare, Cloudinary, AWS CloudFront) can handle this automatic format negotiation.

JPEG

关于 {from} 格式 JPEG

Standardized in 1992 by the Joint Photographic Experts Group, JPEG became the internet's dominant image format through the 1990s. Its DCT compression made digital photography practical for early web and digital cameras, enabling photo-sharing at a time when dial-up connections made large files impractical. Today it remains the default format for cameras, smartphones, and photo-sharing platforms worldwide.

优点

+Smallest file sizes for photographs (10:1 to 20:1 compression ratio)

+Universal compatibility across every device, software, and platform

+Embeds EXIF metadata (GPS, camera settings, date/time)

+Adjustable quality/size trade-off at save time

+Native support in every digital camera and smartphone

局限性

−Lossy — permanently discards image data with every save

−No transparency — backgrounds are always solid

−Visible block artifacts on sharp edges, text, and high-contrast areas

−Quality degrades with each re-save (generational quality loss)

−Limited to 8-bit per channel (no HDR or 16-bit depth)

使用时机

→Sharing photographs on social media, email, or blogs

→Camera images where file size matters more than pixel perfection

→Web page photos where page load speed is the priority

→Any context requiring maximum cross-device and software compatibility

提示

•Quality 85–95% delivers the optimal balance between file size and visual quality

•Never re-save a JPG after editing — use PNG or TIFF as your working master file

•Use PNG or WebP for logos, text, and graphics with sharp edges instead

•Strip EXIF metadata before web publishing to trim 5–20 KB per image

WEBP

关于 {from} 格式 WEBP

Google developed WebP and announced it in 2010 using technology from the VP8 video codec. Initial adoption was Chrome-only, but Firefox added support in 2019 and Apple's Safari 14 followed in 2020 — finally making WebP viable for all modern web deployments without compatibility caveats. It is now Google's officially recommended image format for web performance optimization.

优点

+25–34% smaller than JPEG/PNG at equal quality — direct page load improvement

+Both lossy and lossless compression modes in a single format

+Full alpha transparency like PNG at significantly smaller file sizes

+Animated WebP replaces GIF with full-color quality and dramatically smaller files

+Directly improves Google Core Web Vitals (LCP) and PageSpeed scores

局限性

−Not supported in Internet Explorer or Safari before iOS 14 / macOS Big Sur

−Print shops, Outlook, and Office apps don't accept WebP

−Limited native support in professional desktop imaging software

−Not practical for offline print workflows requiring Photoshop or Lightroom native support

使用时机