Tools

Stitch AI generates UI design from prompts and images.

Stripe Payments and billing infrastructure for the internet.

Submagic AI captions and B-rolls for short-form video.

Sudowrite Fiction-first AI for novelists — brainstorm, describe, and rewrite prose.

Supabase AI AI SQL and schema help inside Supabase.

Superhuman AI-accelerated email with snappy shortcuts.

Surfer On-page SEO content optimization and audits.

Surfer SEO On-page SEO optimization with content score and audit.

Surfer SEO On-page SEO optimizer that scores content against top-ranking pages.

Sweep Bot that turns issues into code PRs.