01
JPG, PNGGo to uploadPick imageUpload
instagram 4:5
准备 YouTube 缩略图
调整后保存
调整后保存3 inputs -> 2 outputs
02
调整后保存Go to uploadAdjust and downloadTune while previewing
01Pick image
UploadPick the image for the platform
02Adjust and download
Result workspaceSee the result here as you work.
JPG
Preparing result
Preparing resultWorking
Upload to prepare the preset result
Waiting for fileJPG · 3840 × 2160
Adjust options
Choose taskWhere it will go
Built for this platform preset
YouTube thumbnail
YouTube thumbnailYouTube thumbnail · 3840 × 2160
Fixed canvas presetPreview ready
Set optionsSave setup
Choose fit mode and output
AdvancedChoose output formatOpen
instagram 4:5
准备 YouTube 缩略图
调整后保存
调整后保存3 inputs -> 2 outputs
Last updated2026-04-10
StabilityStable
Request tags linked to this page
01Pick image
UploadPick the image for the platform
02Adjust and download
Result workspaceSee the result here as you work.
JPG
Preparing result
Preparing resultWorking
Upload to prepare the preset result
Waiting for fileJPG · 3840 × 2160
Adjust options
Choose taskWhere it will go
Built for this platform preset
YouTube thumbnail
YouTube thumbnailYouTube thumbnail · 3840 × 2160
Fixed canvas presetPreview ready
Set optionsSave setup
Choose fit mode and output
AdvancedChoose output formatOpen
Quick note about this tool
The tool name and page path are sent automatically.
准备 YouTube 缩略图What this tool is for
准备 YouTube 缩略图 accepts JPG, PNG, WEBP files, works in your browser, and prepares JPG, PNG output. 在浏览器里调整图片并保存一份新文件，让它直接适合 YouTube 缩略图。
The uploaded file is processed in the browser and only the resulting download is prepared.
在浏览器里调整图片并保存一份新文件，让它直接适合 YouTube 缩略图。
适合这些场景
3 inputs -> 2 outputs
当你需要一张适合 YouTube 缩略图 的图片时。
当你想快速对齐尺寸，而不想打开完整设计工具时。
Frequently asked questions
These short answers help search visitors confirm the tool fit without leaving the page.
准备 YouTube 缩略图可以做什么？
在浏览器里调整图片并保存一份新文件，让它直接适合 YouTube 缩略图。
什么时候适合使用准备 YouTube 缩略图？
当你需要一张适合 YouTube 缩略图 的图片时。