# Analyze image before upload

**URL:** <https://forum.kirupa.com/t/analyze-image-before-upload/279836>\
**Category:** web dev\
**Created:** [January 19, 2009, 8:59pm UTC](https://forum.kirupa.com/t/analyze-image-before-upload/279836 "2009-01-19T20:59:03Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![forza\_stiinta](https://avatars.discourse-cdn.com/v4/letter/f/bc79bd/32.png) [@forza\_stiinta](https://forum.kirupa.com/u/forza_stiinta)\
**Post date:** [January 19, 2009, 8:59pm UTC](https://forum.kirupa.com/t/analyze-image-before-upload/279836/1 "2009-01-19T20:59:03Z")

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Hello!

How can I analyse an image before upload?  
I mean, I want to determine the size of the file and the image resolution before it is actually sent to the server, using Javascript, or something client-side?