Image Resizer

Resize JPG, PNG and WebP images — custom dimensions, presets or percentage scaling.

Tooltron flying fast
Output: 1080 × 1080 px
Drop images here or click to select
Supports JPG, PNG, WebP · Multiple files allowed
🖥️100% in-browser
🔒Fully private
⚡Instant resize
📦Batch ZIP download
Platform Presets
Jump straight to the exact dimensions social platforms expect — Instagram Post, YouTube Thumbnail, TikTok, and more.
Aspect Ratio Lock
Type a width and the height updates automatically, so resized images never come out stretched or squashed.
Percentage Scaling
Scale any image from 5% up to 200% with a single slider — perfect for quick thumbnails or 2x upscales.
Multiple Formats
Resize JPG, PNG, and WebP images and process as many files as you need in a single batch.
Fill Background Option
Fit an image inside a fixed canvas and pick a fill color for any empty space instead of stretching or cropping it.
Private by Design
Every resize runs on your own device — your images are never uploaded to a server.

How to Resize an Image?

  1. 1.Drop your images or click "Drop images here or click to select" to choose the files you want to resize.
  2. 2.Pick Presets, Custom Size, or Percentage mode and set your target dimensions.
  3. 3.Click "Resize All" and download your resized images individually or as a ZIP.
1080×1080
1280×720
1080×1920

Presets for Every Platform

Instagram Post, Instagram Story, YouTube Thumbnail, TikTok, Wallpaper HD — pick a preset and Tooltron outputs the exact pixel dimensions each platform expects, no manual math required.

25%270×270
50%540×540
100%1080×1080
200%2160×2160

Scale by Percentage in One Drag

Slide from 5% up to 200% and watch the target dimensions update live — a fast way to shrink a photo for email or upscale a graphic without typing exact numbers.

Why Our Image Resizer Stands Out: Precise, Batch-Ready Results

Built-In Platform Presets
Skip the guesswork of remembering exact pixel dimensions — pick Instagram Post, YouTube Thumbnail, TikTok, or Wallpaper HD and Tooltron handles the math for you.
Three Ways to Resize
Use presets for speed, custom width and height for precision, or percentage scaling to shrink or enlarge proportionally — every mode locks aspect ratio so nothing distorts.
Batch-Friendly From the Start
Drop in as many JPG, PNG, or WebP files as you need and resize them all in one pass, then grab everything at once as a single ZIP download.
Processed on Your Device
Resizing runs entirely in your browser using the Canvas API, so files never leave your computer and no account or upload limit ever gets in your way.