Developer Tools · Group 19 of 19
SEO Tools.
The studio above is the flagship: type a title and description once and watch it render as a Google result, a mobile result, an Open Graph card and a Twitter card — with live length meters that show exactly where Google will cut you off, and a full set of copy-ready meta, OG and Twitter tags. Below it, the complete 35-tool SEO kit: 13 schema.org generators, robots.txt and sitemap builders, UTM and slug makers, and content analyzers. Nothing is uploaded, nothing is stored.
- Tools35
- Live in bench10
- Schema types13
- Backendnone
- Costfree
Every tool, one page.
Optimize anything. We couldn't see it even if we wanted to.
This page has no backend and no database. Every tag generated, every schema built and every preview rendered just now happened inside your own browser tab — your titles, descriptions and URLs never traveled a single centimeter of cable. Close the page and they're gone for good.
- Databasenull
- Backendnone
- URLs uploaded0
- Session logs0
Asked often, answered plainly.
How long should a title tag be?
Aim for roughly 50–60 characters. Google truncates titles by pixel width (about 580px on desktop), not character count, but 60 characters is the reliable rule of thumb. The live meter in the studio shows you exactly where you stand, and the preview shows precisely how the truncation will look before you ship it.
How long should a meta description be?
Aim for 70–160 characters. Descriptions longer than about 160 characters get cut off with an ellipsis in the results; too short and Google may ignore it and pull its own snippet. The meter shows the window live, and the preview renders exactly what searchers will read.
Do meta keywords still matter?
No. Google has ignored the meta keywords tag for well over a decade, and stuffing it can look spammy. This kit focuses on the tags that actually matter — title, description, canonical, Open Graph, Twitter Card and structured data — and doesn't waste your time on what search engines stopped reading years ago.
What is structured data and why does it matter?
Structured data (schema.org, usually as JSON-LD) tells search engines what your content means — that it's a recipe, an event, a product, a FAQ. That's what makes rich results possible: star ratings, FAQ dropdowns, event dates and prices shown right in the results. The 13 schema generators here produce valid JSON-LD you can paste straight into your page.
Is my data saved anywhere?
No. Stack has no backend and no database. Every tag generated and every preview rendered happens inside your browser tab and vanishes the moment you close or refresh the page. Nothing is logged, because nothing is ever collected.