Free online SEO and marketing tools

Checks how a site looks when shared on seven platforms and whether AI crawlers can read it.

Checks hreflang annotations on a page for errors and missing return links.

Writes Instagram bio options that fit a brand, capped at five sets a day without an account.

Writes three Instagram caption options from a post description, type, tone and length.

Suggests Instagram hashtags from a post description using an OpenAI model; five results a day without an account.

Estimates sponsored post earnings from follower count and engagement.

Produces Instagram name and @handle ideas for creators and brands.

Suggests Instagram names and handles for a brand or personal account.

Produces JSON-LD structured data markup for common schema.org types.

Analyzes a page for keyword frequency and density.

Produces keyword ideas from a seed term for SEO and PPC.

Generates ten email subject lines from the purpose and tone you describe.

Suggests LinkedIn headline ideas from a role and preferences.

Builds an llms.txt file describing a site for AI assistants.

Gives you a test address, then scores the email you send there for spam and authentication issues.

Writes several email subject line options from a short description, using GPT models; no signup.

Writes professional or marketing emails from a topic, tone and audience; no login needed.

Builds a buyer persona template from a description of your ideal customer.

Calculators for CTR, ROI, CAC, LTV and other marketing figures.

Checks meta title and description character limits and previews the metadata.

Give it a URL and it lists the page's meta, Open Graph and Twitter card tags.

Builds meta, Open Graph and Twitter tags with Google and social previews.

Open source generator for meta tags tuned for Open Graph and Twitter sharing.

Audits Open Graph, Twitter and SEO tags from a URL or pasted HTML and lists fixes by severity.