Here is many solutions are available for bulk updating wordpress url, one of the most wordpress plugin is Velvet Blues Update URLs
Velvet Blues Update URLs
If you move your WordPress website to a new domain name, you will find that internal links to pages and references to images are not updated. Instead, these links and references will point to your old domain name. This plugin fixes that problem by helping you change old urls and links in your website.
FEATURES:
- Users can choose to update links embedded in content, excerpts, or custom fields
- Users can choose whether to update links for attachments
- View how many items were updated
