# How to convert vBulletin 4 database to Discourse?

**URL:** <https://meta.discourse.org/t/how-to-convert-vbulletin-4-database-to-discourse/50029>\
**Category:** Support\
**Created:** [Setembro 12, 2016, 7:45pm UTC](https://meta.discourse.org/t/how-to-convert-vbulletin-4-database-to-discourse/50029 "2016-09-12T19:45:32Z")\
**Posts on this page:** 1\
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**Author:** ![Matheeus](https://sea3.discourse-cdn.com/meta/user_avatar/meta.discourse.org/matheeus/32/121527_2.png) [@Matheeus](https://meta.discourse.org/u/Matheeus)\
**Post date:** [Setembro 12, 2016, 7:45pm UTC](https://meta.discourse.org/t/how-to-convert-vbulletin-4-database-to-discourse/50029/1 "2016-09-12T19:45:32Z")

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Hi,

I’ve a big board with a database of over 8GB size with vBulletin 4 and I’m evaluating to switch my forum to Discourse.

So, I’m trying to convert my vB4 db to Discourse: how to do this? I’ve noticed the script at this link [discourse/script/import\_scripts/vbulletin.rb at main · discourse/discourse · GitHub](https://github.com/discourse/discourse/blob/master/script/import_scripts/vbulletin.rb) but I don’t know how to execute it and what it needs.

Is there any guide about vB4-\>Discourse conversion?

(Actually, i’ve any experience with Ruby and Docker).

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