Building ToolNest: What web utilities or developer tools do you use daily?

Hey Product Hunt community!

As developers and creators, we all rely on quick online utilities every day to speed up our workflow—whether it's formatting code, testing web tools, or managing daily tasks.

I'm preparing to launch ToolNest, a brand-new platform designed to bring together clean, fast, and free web tools alongside built-in SEO and backlink opportunities for webmasters.

I’d love to hear from you:
- What daily web tools do you rely on the most?
- What features or utilities do you feel are missing from existing online tool sites?

Looking forward to hearing your insights and ideas before our official launch!