Most social preview debuggers and meta tag testers today are bloated, slow, or locked behind ad walls and paywalls.
I wanted a clean, browser-native suite of tools that runs 100% client-side with 0ms server latency, so I built OmniSEOtools.
Why Client-Side Matters
Instead of scraping URLs on a remote server, testing your tags and title dimensions directly in the browser gives instant feedback.
Here is what is currently live and open:
- Twitter / X Card Previewer — Test 1.91:1 social card crops and text truncation.
- Google SERP Pixel Ruler — Real-time 600px desktop and mobile snippet simulator.
- LinkedIn Post Inspector — Accurate preview of feed post cutoffs.
The project is built using Next.js (App Router), Tailwind CSS, and is open-sourced on GitHub.
Would love feedback from other developers on what other SEO or meta utilities you'd find useful to have client-side!
Top comments (2)
i was stuck on the same issue with next.js metadata api not firing on client side, curious how you handled the cache invalidation when the og image url changes
tbh the zero latency claim is wild, how are you handling the initial crawl without hitting the DB every single time