I built a tool that allow you to personalize your website for cold outreach, with variables and without code

Hello Indiehackers,
I built a tool that allow you to personalize your website for cold outreach, with variables and without code.
I currently trying it for my own needs, and it's working pretty well in terms of conversion.
Basically, you can select where you want to show variable on your homepage, for example personalize your heading text to "Hello {{first_name}}..." and your CTA's. I'm using it with cold email outreach (with lemlist) and I'm also gonna integrate linkedin prospection tools.

At this moment, I can't really sell it because I coded it pretty fast and it's not scalable but I'm asking myself if it can be worth it to "saasify" it. What do you think about it ? Would you use a tool like that ?