Free online SEO and marketing tools

6 tools

Meta-tag and Open Graph preview tools, UTM builders, schema.org generators, robots and sitemap helpers, and keyword and headline checkers. Most are lightweight; compare outputs against the search engines' own documentation.

Showing 1–6 of 6

0.796score
Yellow Lab Tools
Gaël Métais
Open-source page audit that tests front-end quality and performance issues in a page.
ArtifactNo sign-up★ 2.5Kseo marketing
0.579score
ImageAlt
sujjeee
Open source tool that writes alt text for an uploaded image.
ArtifactAINo sign-up★ 20seo marketing
0.569score
GeoScore
sprawf
Open source audit that checks 39 factors of SEO and whether AI assistants would cite a site.
ArtifactAINo sign-up★ 12seo marketing
0.569score
SEO Metadata Editor
mrluisfer
Edit a page's search and social metadata in one place, then export it as plain HTML or as code for Next.js, Astro, SvelteKit or Nuxt.
ArtifactNo sign-up★ 12seo marketing
0.567score
CrawlScope
code2ahm
Scans a website with Lighthouse and reports SEO, performance, accessibility and technical issues.
ArtifactNo sign-up★ 11seo marketing
0.542score
Open Graph Meta Generator
Corentin Thomasset (IT-Tools)
Generates the Open Graph and social-card HTML meta tags for a web page from a few fields.
ArtifactNo sign-upseo marketing