Resize Image
Resize images by width, height, or both while preserving quality.
Resize Image
Free online tool · instant results
Resize Image workspace
What it does
Resize images by width, height, or both while preserving quality.
Best for
Resize images by width, height, or both while preserving quality.
Time
~1 min to complete
Pricing
Free forever
Access
No signup required
Privacy
Runs in your browser
Overview
About this tool
A clear look at what this tool is for and why people use it.
Resize Image
Resize images by width, height, or both while preserving quality.
Files use private temporary storage and short-lived signed downloads. Automatic cleanup applies after the retention period.
Why use it
Benefits
Everything you need for a fast, confident answer — nothing you don’t.
Free image processing in your browser sess
Free image processing in your browser session
Live preview with before/after comparison
Live preview with before/after comparison
Private temporary storage and automatic cl
Private temporary storage and automatic cleanup
Dark mode and mobile-ready workspace
Dark mode and mobile-ready workspace
Walkthrough
How to use
Simple steps from empty form to a result you can use.
-
1
Upload an image (drag and drop supported).
-
2
Configure options if shown, then process.
-
3
Compare before/after and download with a signed link.
-
4
Files are deleted automatically after the retention period.
Under the hood
How it works
Follow the path from input to output — transparent and easy to scan.
GD resamples your image
GD resamples your image to the target size using the selected mode, then stores a private temporary download.
Pro tips
Tips
Small habits that make this tool even more useful day to day.
Get accurate results
Double-check units and inputs before you rely on Resize Image output for anything important.
Work faster
Use the examples below as a starting point, then tweak values to match your scenario.
On any device
This tool is mobile-friendly — bookmark the page so you can reopen it in one tap.
Watch out
Common mistakes
Avoid these slip-ups so your result is ready the first time.
Leaving required fields blank
Enter every value the workspace asks for before calculating — empty fields usually block a result.
Using invalid numbers
Avoid negative values or percentages outside a valid range unless the tool explicitly allows them.
Mixing up units
Keep units consistent (currency, length, weight, time) so the formula returns a meaningful answer.
FAQ
Frequently asked questions
Straight answers to the questions people ask most.
Support AdvanzoTools
AdvanzoTools is built to provide fast, reliable, and free online tools for everyone.
If our tools have helped you save time or improve your workflow, you can support ongoing platform development. Your support helps improve existing tools, build new ones, maintain secure infrastructure, and keep AdvanzoTools free for everyone.
History
Recently used
Pick up where you left off on this device.
Trending
Popular calculators
Other free tools people open after this page.
New
Recently added
Fresh additions to the catalog.
Text Sorter
Sort lines A–Z, Z–A, or randomly. Optional case-sensitive and unique-line modes.
OpenSentence Counter
Count sentences in essays and articles. Also shows words, characters, and paragraphs.
OpenWord Counter
Count words, characters, sentences, and paragraphs in any text. Copy a clear summary instantly.
OpenReverse Text
Reverse characters, words, or lines of any text. Unicode-aware character reverse.
OpenWas this tool helpful?
Your answer stays on this device. Platform analytics may be added later without changing this control.
Thanks — your feedback helps us improve this tool.