"Coraline" is not available online for free, as of Jan. 1, 2016. The film is available digitally for rental or purchase, as well as on Blu-ray and DVD.
"Coraline" is still sold across a variety of services, and, as such, is not legally available for free online. The film is available for digital rental from Google Play, Vudu and iTunes for $2.99, and digital purchase on those same services for prices ranging from $6.99 to $9.99. The film is also available on Blu-ray and DVD through the mail with a Netflix subscription, or through Amazon.com for as low as $7.50 for DVD and $11.99 for Blu-ray.