If editing video is your hobby, may be you can try 5 of these sites which providing free video editing online applications and you will be given the the opportunity to edit some basic part of your videos, but of course they can’t be compared with paid editing software and you won’t find feature-rich within them as you will find in paid software. But only to do simple editing!
Adobe Premiere Express Online Video Editing

To work with Adobe you need web browser and Adobe Flash Player, that’s all, no download and nothing to pay! With it you can split, reorder, trim video clips, adding your favorite music, titles, transition and more!
JayCut claims to gives any necessary tools for you to start your video editing activity!

Upload your video and music in CellSea and start editing afterward!

You are able to upload your own video clips then edit it online with Pixorial, not just that Pixorial also give you ability to deliver your edited footage on DVD. But one thing you must now, editing service is free and up to 10 GB, but for DVD is not free!

Offering video editing via online is Motion Box’s feature, by uploading video through your machine, organizing it and then store it! Well it’s also good service to be recommended and used!

