轻松掌握图片尺寸调整
满足所有平台的尺寸要求
不同的社交媒体平台和网站对图片尺寸有着严格的要求。使用我们的图片尺寸修改器，您可以轻松将照片调整到Instagram、Facebook、YouTube封面或电商平台的标准尺寸，确保图像清晰且不被裁切。
灵活多样的调整模式
- 按精确像素值调整宽度和高度
- 锁定原始比例以防图像拉伸变形
- 按百分比快速放大或缩小图像
我们的工具同样基于纯前端技术运行。这意味着您可以瞬间完成数百张图片的批量尺寸修改，无需忍受漫长的上传和下载等待过程。
在线图片尺寸修改器
精确调整图片宽度和高度，适配各种社交媒体和网站尺寸要求
常用预设和使用场景
Resize PNG for Instagram Post - Free Online Tool
Easily resize png for instagram post dimensions. Utilize our fast instagram png resizer to prepare your social graphics.
Resize PNG for Instagram Story - 1080x1920 Optimizer
Format your vertical designs to 1080x1920. Use our tool to resize png for instagram story layout and instagram story png resizer settings.
Resize PNG for YouTube Thumbnail - 1280x720 Editor
Get the exact 1280x720 pixels for your thumbnail. Learn how to resize png for youtube thumbnail assets with our youtube thumbnail png resizer.
Resize PNG for Facebook Cover - 820x312 Pixels Online
Prepare headers with our tool to resize png for facebook cover. Try our automated facebook cover png resizer for banners.
Resize PNG for LinkedIn Post - Optimize Professional Layouts
Prepare graphics for your feed. Use our tool to resize png for linkedin post dimensions. Try our fast linkedin png resizer online.
Resize Image to 1080x1080 - Square Ratio Creator
Format any picture to 1080x1080 px. Easily resize image to 1080x1080 using our instant image resizer 1080x1080.
Resize Image to 1080x1920 - Portrait Layout Scaler
Fit your visual assets into 1080x1920 px. Use our tool to resize image to 1080x1920. Try our quick image resizer 1080x1920.
Resize Image to 1280x720 - HD Widescreen Editor
Get the widescreen layout easily. Utilize our editor to resize image to 1280x720. Try our high-quality image resizer 1280x720.
Resize Image to 820x312 - Facebook Banner Resizer
Scale your headers with our tool to resize image to 820x312. Try our responsive image resizer 820x312 online.
Resize Image to 1200x627 - LinkedIn Feed Card Editor
Fit your visual cards into 1200x627. Use our tool to resize image to 1200x627. Try our image resizer 1200x627 online.
Resize JPG for Instagram Post - Free Online Tool
Easily resize jpg for instagram post feeds. Try our instagram jpg resizer for quick square dimensions.
Resize JPG for Instagram Story - Vertical 1080x1920 Editor
Format vertical photos with our tool to resize jpg for instagram story. Try our instagram story jpg resizer.
Resize JPG for YouTube Thumbnail - 1280x720 HD Editor
Fit your covers into 1280x720 px. Learn to resize jpg for youtube thumbnail with our youtube thumbnail jpg resizer.
Resize JPG for Facebook Cover - 820x312 px Online Tool
Scale landscape covers with our tool to resize jpg for facebook cover. Use our premium facebook cover jpg resizer.
Resize JPG for LinkedIn Post - Optimize Business Graphics
Format files for feeds. Use our tool to resize jpg for linkedin post. Try our corporate linkedin jpg resizer.
Resize JPEG for Instagram Post - Free Square Tool
Prepare graphics for your feed. Use our tool to resize jpeg for instagram post. Try our instagram jpeg resizer.
Resize JPEG for Instagram Story - Vertical 1080x1920 px
Fit vertical designs to 1080x1920. Use our tool to resize jpeg for instagram story. Try our instagram story jpeg resizer.
Resize JPEG for YouTube Thumbnail - 1280x720 px Editor
Make covers in HD resolution. Learn how to resize jpeg for youtube thumbnail with our youtube thumbnail jpeg resizer.
Resize JPEG for Facebook Cover - 820x312 px Online
Scale landscape designs with our tool to resize jpeg for facebook cover. Use our premium facebook cover jpeg resizer.
Resize JPEG for LinkedIn Post - Optimize Business Feeds
Prepare professional graphics. Use our tool to resize jpeg for linkedin post. Try our fast linkedin jpeg resizer.
Resize WebP for Instagram Post - Modern Square Editor
Format web assets for social grids. Try our instagram webp resizer to resize webp for instagram post feeds.
Resize WebP for Instagram Story - Vertical 1080x1920 Editor
Prepare vertical stories with our tool to resize webp for instagram story. Try our instagram story webp resizer.
Resize WebP for YouTube Thumbnail - 1280x720 HD Tool
Get widescreen dimensions. Learn to resize webp for youtube thumbnail with our youtube thumbnail webp resizer.
Resize WebP for Facebook Cover - 820x312 px Online
Scale landscape covers with our tool to resize webp for facebook cover. Use our premium facebook cover webp resizer.
Resize WebP for LinkedIn Post - Widescreen Post Editor
Prepare professional WebP cards. Use our tool to resize webp for linkedin post. Try our fast linkedin webp resizer.
Resize Image for Instagram Post - Free Square Scaler
Format visual designs for social media feeds. Use our tool to resize image for instagram post. Try our instagram image resizer.
Resize Image for Instagram Story - Vertical 1080x1920 px
Prepare vertical layouts with our tool to resize image for instagram story. Try our instagram story image resizer.
Resize Image for YouTube Thumbnail - 1280x720 px Editor
Get widescreen covers in HD. Learn to resize image for youtube thumbnail with our youtube thumbnail resizer.
Resize Image for Facebook Cover - 820x312 px Online
Scale landscape covers with our tool to resize image for facebook cover. Try our premium facebook cover image resizer.
Resize Image for LinkedIn Post - Optimize Feed Cards
Format files for business feeds. Use our tool to resize image for linkedin post. Try our linkedin image resizer.
Blackzoragen Image Resizer Online Free
Easily use our tool to resize image dimensions locally with blackzoragen image resizer. Complete processing is local and secure in your browser.
Recommended Articles & Guides
View all blog posts →
tutorial
How to Enlarge Photos Without Pixelation: Say Goodbye to Blocky Edges
Learn how to enlarge photos without pixelation. Stop seeing jagged staircases and blocky pixels when you scale up images for web or print.
Feb 17, 20268 min read
strategy
The Art of Optimization: Why an Image Resizer is Your Best Friend
From Instagram stories to website headers to stock submissions, one size never fits all. Learn how mastering image resizing ensures your content always looks perfect, everywhere.
May 4, 20265 min read
ai
AI Image Upscaler Online: How to Enlarge Photos Without Blurry Pixels
Tired of blurry, pixelated pictures when you try to enlarge them? Learn how an AI image upscaler online sharpens details, restores old photos, and prepares images for printing.
Feb 17, 20268 min read
⚠️ Note: Articles are available in English.
FAQ
Frequently Asked Questions
Everything you need to know about optimizing your assets
只要您在设置面板中开启了“锁定宽高比”选项，图片在调整时就会保持原有的比例，绝对不会出现拉伸或挤压变形的情况。
可以改变其像素尺寸。但请注意，常规的重采样放大功能会导致图片变得模糊。如果您希望放大同时提升清晰度，请使用我们的AI无损放大工具。
只需在工具中选择多张图片并设定好目标尺寸或百分比，点击开始处理，工具会自动按照设定将所有图片批量修改完毕。
您可以手动输入任何所需的像素值。我们未来还会提供一键预设功能，涵盖主流社交平台的常用横幅和帖子尺寸。
在调整尺寸的同时，您可以选择将输出文件保存为JPG、PNG或WebP格式，实现一站式处理。
为了保证浏览器的稳定运行，我们建议处理的长宽不超过8000像素。日常绝大多数的高清照片都能轻松应对。
因为是完全在您本地运行的工具，所以完全没有处理数量或使用次数的限制。它是100%免费的。
调整大小是改变整张图片的像素级别，保留全部内容；而裁剪是切除图片的某些边缘部分。本工具专注于完整的调整大小功能。
Still have questions?
Our support team is here to help you get the most out of Blackzora.
🔗 嵌入此工具
想为读者提供此免费工具吗？复制以下 HTML 代码并粘贴到您的网站或博客中。
<iframe src="https://www.blackzoragen.com/zh/tools/image-resizer/embed" width="100%" height="650px" style="border:none; border-radius:12px; box-shadow: 0 4px 12px rgba(0,0,0,0.05);" allow="clipboard-write"></iframe>
<div style="text-align:center; font-size:12px; font-family:sans-serif; margin-top:5px; color:#666;">技术支持 <a href="https://www.blackzoragen.com/zh/tools/image-resizer" target="_blank" style="color:#0d9488; text-decoration:none; font-weight:bold;">Blackzora Gen Image Resizer</a></div>
✓ 本地浏览器处理✓ 100% 移动端适配