SEO & Web Tools
Generate robots.txt, meta tags, schema markup and UTM links, preview your SERP snippet and validate an XML sitemap. Technical SEO essentials, free.
Robots.txt Generator
Build a correct robots.txt, including rules for AI crawlers.
Open tool →Meta Tag Generator
Generate title, description, Open Graph and Twitter card tags.
Open tool →SERP Snippet Preview
See how your page will look in search results before you publish.
Open tool →Schema Markup Generator
Build valid structured data for rich results.
Open tool →UTM Campaign URL Builder
Build tagged links that report cleanly in analytics.
Open tool →About SEO & Web Tools
Technical SEO is mostly a matter of emitting correct markup and correct directives. Get the robots file wrong and a crawler never sees the page; get the schema wrong and it never earns a rich result. These generators produce output that validates, with an explanation of what each field does and when leaving it out is the better call.
Every tool in this category
- Robots.txt Generator — Build a correct robots.txt, including rules for AI crawlers.
- Meta Tag Generator — Generate title, description, Open Graph and Twitter card tags.
- SERP Snippet Preview — See how your page will look in search results before you publish.
- Schema Markup Generator — Build valid structured data for rich results.
- UTM Campaign URL Builder — Build tagged links that report cleanly in analytics.
Other tool categories
- Data Format Converters — Convert between JSON, YAML, CSV, XML and TypeScript in your browser. Every converter validates as you type and nothing is uploaded to a server.
- AI & LLM Tools — Count tokens, estimate API costs, check context window limits and generate llms.txt. Practical utilities for anyone building on GPT, Claude or Gemini.
- Text & String Tools — Compare two texts, test regular expressions, build URL slugs, convert case and count words and characters. Fast, private, browser-based text utilities.
- Encoding & Developer Tools — Base64, URL encoding, JWT decoding, hash generation and UUIDs. The small developer utilities you reach for several times a week, all client-side.
- Image & Asset Tools — Convert images to Base64 data URIs, inline SVGs, read EXIF metadata, generate favicons and extract colour palettes — all in the browser.