What SEO tools do you actually use every week (and what's still missing)?

I've been working on SabrTime SEO Tools, a free collection of browser-based SEO utilities designed to help bloggers, developers, and small businesses with everyday SEO tasks.

Instead of creating another all-in-one SEO platform, I focused on simple tools that solve common problems quickly—without requiring an account or subscription.

Some of the tools include:

- Meta Tag Generator

- Robots.txt Generator

- Sitemap Generator

- Schema Markup Generator

- Open Graph & Twitter Card Generator

- Keyword Density Checker

- Word Counter

- URL Encoder/Decoder

- And more.

I'm curious:

What SEO tool do you find yourself using repeatedly?

Is there a small utility you wish existed but haven't found yet?

I'd also love any feedback on the direction of SabrTime SEO Tools. If you'd like to explore it, you can check it out here:

https://sabrtime.in/seo-tools/

Looking forward to hearing what tools save you the most time.