Resize any image to the exact size you need
A fast, free image resizer, compressor, and converter. Match an exact KB limit, pixel dimension, or platform size in seconds, then crop, rotate, mirror, pixelate, or convert without uploading your files anywhere.
Resize an image
100% privateAll your image tools
One toolkit for every resize job
Pick the tool that matches your goal. Each card opens the new private image editor with the right workflow.
Crop
Crop to custom dimensions or presets like 1:1, 4:3, 16:9, and 9:16.
Open tool By pixelsResize
Resize by exact width and height, with optional fixed aspect ratio.
Open tool Change formatConvert
Export JPG, PNG, WebP, AVIF, TIFF, or GIF where your browser supports it.
Open tool Keep qualityCompress
Reduce file size automatically while keeping a clean-looking result.
Open tool Flip imageMirror
Mirror horizontally or vertically in one click.
Open tool Any angleRotate
Rotate left, right, 180°, 270°, or by a custom angle.
Open tool Target KB/MBReduce Image Size
Aim for an exact upload limit and see honest warnings if it cannot be met.
Open tool Block effectPixelate
Pixelate the full image or a selected rectangular area.
Open tool GrayscaleBlack and White
Create grayscale or strict black-and-white images.
Open toolCompletely private
Images are processed inside your browser. Nothing is uploaded to a server.
Instant results
No queues or waiting. Resize, compress, or convert in a single click.
Exact size targets
Hit a precise KB or pixel target so your file always passes upload limits.
No sign-up, no fees
Every tool is free with no account, watermark, or daily limit.
Browse the library
Jump straight to the preset you need
Hundreds of ready-made presets for file sizes, exact dimensions, social platforms, print, and official documents.
Social & Platform Presets
Good to know
Frequently asked questions
Are my images uploaded anywhere?
No. ResizeWizard does all the work in your browser using the canvas API, so your photos never leave your device.
How do I resize an image to an exact file size?
Open a 'resize to KB' preset, drop in your image, and the tool compresses it to fit just under the target size automatically.
Which formats can I work with?
You can import JPG, PNG, WebP, GIF, and AVIF, and export to JPG, PNG, or WebP depending on what you need.
Will resizing reduce my image quality?
Resizing to similar dimensions keeps images sharp. For strict file-size limits, JPG or WebP give the best balance of size and clarity.
Resize your image now
Drop in a photo and get a perfectly sized file in seconds. No account, no uploads, no cost.