Lexique.org has the resource you’re looking for. The transcription keys used are given here.

There is also flexique, a newer more supervised version that separates verbs from the other categories.

You could also check out GLAWI based on the French Wiktionary which has lots of information including pronunciation but in XML format.

You could also check this website to see if it is useful for you or not:
Le Figaro

I like this website. You can look for any verb you want. To check the pronunciation I use Siri on iPhone. If Siri understands, so does anyone.

I like Reverso, since I often have to work in several languages and it makes it easy to cross-reference. Unfortunately it does not give pronunciation. Anyway, the web address is:
http://dictionary.reverso.net

Wiktionary has a comprehensive pronunciation appendix for every verb, for example http://fr.wiktionary.org/wiki/Annexe:Conjugaison_en_fran%C3%A7ais/ouvrir

The infamous Bescherelle is the number one conjugation resource for students of French grammar, including French children themselves. It is a smallish red hardcover book which is simple and easy to use.

Pronunciation is usually straight forward, as most conjugation is rather standard and somewhat normalized, especially since the imperfect subjunctive has been officially replaced by past simple a few generations ago (you still find it in classic novels).

Verbs are of three groups and the third is indeed the one where everyone struggles, because there is no other way but to learn every form by heart. Etre and Avoir are of that group.

The Memrise app has a great course called ‘Learn French Conjugation’, that I used to learn all the tenses, both regular and irregular. I highly recommend that. Otherwise, @GAM PUB has provided the best answer.