Hi, As discussed previously, I've implemented a new plugin : Dancer::Plugin::Params::Normalization. This plugins allows to "normalize" parameters names. They can be lowercased, uppercased, ucfirst'ed, or normalized using a given function. The plugin normalizes by default query and body parameters, but can be configured to normalize route parameters too. The plugin can work using 2 policy : 'always', where parameters are automatically normalized, and 'ondemand', where you have to call normalize() to perform the normalization. You can also setup a regexp in the configuration to filter which parameters you want normalized. So, lots of feature, but I think the defaults values make it easy to use at a first glance. It's on github : http://github.com/dams/Dancer-Plugin-Params-Normalization And also on CPAN. Please don't hesitate to comment, hack, propose pull requests, etc... dams