Image Transformer (Resize, Rotate, flip and Enhance)

check a file on the web...

Image URL:

or check a file on your local disk

Files to upload:

or drop files here

Transform Image:
Resize: New Width:     New Height: Stretch:
Rotate: Rotate Degree: 90    180    270   
Horizontal Flip
Vertical Flip
Enhance Iamge

This server side is deployed on GAE, it uses GAE's ImagesService to resize, rotate, flip and enhance images.
GAE Images Java API Overview

JavaScript Online Tools

JavaScript Lint
http://www.javascriptlint.com/online_lint.php
With JavaScript Lint, you can check all your JavaScript source code for common mistakes without actually running the script or opening the web page.

Beautify JavaScript or HTML
http://jsbeautifier.org/
Beautify, unpack or deobfuscate JavaScript and HTML, make JSON/JSONP readable, etc.

Exif Viewer: Extract Metadata from Image

check a file on the web...

Image URL:

or check a file on your local disk

Files to upload:

or drop files here

List All Meta

This server side is deployed on GAE, and uses java metadata-extractor lib to extract meta data from image files.
https://drewnoakes.com/code/exif/
https://code.google.com/p/metadata-extractor/w/list