IMAGE RESIZER

Resize, crop, and optimize images in bulk

CLIENT
100% client-side

Everything runs locally in your browser. Your data never leaves your device - no uploads, no servers, no tracking.

All processing happens directly on your machine using JavaScript. Close the tab and everything is gone. We literally never see your data.

Zero data transmission

Drop images here

or click to browse

Multiple files Any size
JPG PNG WEBP AVIF GIF BMP TIFF ICO HEIC HEIF

Resize analytics

0
IMAGES RESIZED
0 MB
TOTAL MB SAVED
0
BATCH OPERATIONS
JPG
FAVORITE FORMAT
0%
AVG COMPRESSION
100%
EFFICIENCY

How to use Image resizer

Resize and optimize images in three simple steps

Full Documentation Docs
1

Upload images

Drag & drop or select images to resize

2

Configure settings

Set dimensions, format, and quality options

3

Download results

Get individual or bulk resized images

100% Private - Nothing stored
Lightning fast processing
Bulk resize support
Works on all devices

Why choose our Image resizer?

Professional image resizing with complete control

3 resize methods

Dimensions, percentage (10-200%), or platform presets. 12 presets for Instagram, TikTok, Facebook, X/Twitter, YouTube, LinkedIn, Pinterest, Threads.

4 unit types

Resize in pixels, millimeters, centimeters, or inches. Perfect for print projects with precise physical dimensions.

Bulk processing

Upload and resize multiple images at once. Save time with batch operations.

Crop & rotate

Advanced crop tool with aspect ratio presets (1:1, 16:9, 4:3). Rotate 90° increments.

Text watermarks

Custom text watermarks with 9 positions, adjustable opacity, font size, and color.

8 format conversions

Convert between JPEG, PNG, WebP, GIF, TIFF, BMP, AVIF, ICO. Quality control (1-100%). Modern format support.

Frequently Asked Questions

Everything about resizing and optimizing images

How do I resize images?

Upload your images, choose resize method (dimensions or percentage), set your desired size, and click Resize. Download individual images or get all as ZIP.

Can I resize multiple images at once?

Yes! Upload multiple images at once and apply the same settings to all. Download all resized images as a ZIP file with one click. Perfect for batch processing hundreds of photos.

What image formats are supported?

Input: JPG, PNG, WebP, AVIF, GIF, BMP, TIFF, ICO, HEIC, and HEIF. Output: 8 formats (JPG, PNG, WebP, AVIF, GIF, BMP, TIFF, ICO) with quality control. Note: HEIC/HEIF is supported for upload only, not for export.

Will resizing reduce image quality?

We use high-quality Canvas API algorithms. Downsizing preserves quality well. You control the quality slider for compression level.

How do platform presets work?

Platform presets automatically set optimal dimensions for social media platforms. We offer 12 presets: Instagram square, portrait, and story; TikTok; Facebook post and cover; X/Twitter post and header; YouTube thumbnail; LinkedIn; Pinterest; and Threads.

Can I add watermarks?

Yes! Add custom text watermarks with adjustable position (9 locations), opacity, font size, and color. Perfect for protecting copyrighted photos or branding images. Applied during export.

Is my data secure?

100% secure. All processing happens locally in your browser using Canvas API. Your images never leave your device - no server upload, no cloud storage.. Perfect for sensitive photos.