Pixoh is an online image editor that only requires a browser and a photo to use. Pixoh can also convert files from one file format to another. Flickr users can take advantage of the import/export feature.
Businesses often don't allow their users to install software to avoid viruses, security breeches and other nasty things. Pixoh is a way for these users to fix images without downloading anything. Plus, if you're ever away from your computer and need to edit an online photo from Flickr or elsewhere, Pixoh comes in handy.
The editor comes with limited tools compared to big photo editor applications, but it offers a quick and easy way to modify images. Folks who are easily overwhelmed with applications offering too many tools and features should appreciate this simple interface.

You can open an image that's on your computer or enter an URL to grab an online photo. The tool also has a bookmarklet for importing any image from any Web page into Pixoh. The file can be as large as 10 MB or 5000x5000 pixels.
Those with Flickr accounts can import and export files between Flickr and Pixoh. Files can be saved in the following formats: GIF, JPG, PDF, PNG and TIF.

Here are the editing tools available:
- Crop: Cuts out a selected area of your photo by clicking Crop and resizing / moving the box to show the area you want to keep. Click Crop once you're happen with your selection.
- Rotate: Turns photo around by clicking on Rotate until the photo is in the right position.
- Resize: Shrink or increase photo size by clicking and dragging any of the red squares.
- Adjust: Change the width, height, brightness, contrast, sharpness, hue and saturation.

When entering a number into an Adjustment box, tab out of the box to see the picture updated with the change. If you don't like it, click Undo. The tool has unlimited undo (CTRL+Z and ⌘Z on Macs) and redo (CTRL+Y and ⌘Y on Macs). As hinted from the shortcuts, the application works with Macs. You can click and drag the image around the screen.

If you want to export the image to Flickr, click Save and Save to Flickr from the Save pop up window. Flickr opens and you sign in. You're taken to your photo for changing or adding the title (the default is pixoh_ID#), description and tags. The Save window lets you save images as regular or hi-res (high resolution means better quality and larger image).
More features are in the works and you can vote on the features you'd like to see. Redeye correction is coming.
Requirements:
Internet connection, browser and an image. Pixoh works with Internet Explorer, Firefox, Safari, Mozilla and others.
If you're concerned about privacy -- especially using Flickr with Pixoh -- the privacy policy answers commonly asked questions.
Get started with Pixoh.
Free to use.