I am working on results of CNV studies obtained form an online database. I have the start and end co-ordinates of CNVs of several individuals. I want to visualize and compare all of them chromosome wise and identify the CNV regions common in all the individuals. How do I go about this? Is there an online software which would allow this? PS: I am not a trained bioinformatician.    
You can also attach this data to the [Ensembl Browser][1] as explained in this [tutorial page][2]. You will have your data in a format like 'chr start end individual' (i.e. [BED format][3]) and you can compare it to our [gene annotation][4], our [variation][5] data (variants annotated according to [consequence terms][6]), and [regulation data][7] from ENCODE, Blueprint and Roadmap projects (for annotation of enhancer promoter, CTCF, etc). We also include the CNVs from 1000 Genomes and structural variants from DECIPHER (see the region where *[PRR29][8]* is anntoated). Once you attach your data, you also have the option to share that visualisation with your colleagues and collaborators. You just send them the URL we generate and they will see your data against our annotation.


  


  [1]: http://www.ensembl.org
  [2]: http://www.ensembl.org/info/website/tutorials/userdata.html
  [3]: http://www.ensembl.org/info/website/upload/bed.html
  [4]: http://www.ensembl.org/info/genome/genebuild/index.html
  [5]: http://www.ensembl.org/info/genome/variation/index.html
  [6]: http://www.ensembl.org/info/genome/variation/predicted_data.html#consequences
  [7]: http://www.ensembl.org/info/genome/funcgen/index.html
  [8]: http://uswest.ensembl.org/Homo_sapiens/Share/8f0b56753b831f8614c104d1a780f16611452918