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Expiring .io Domains for Sale

All .io domains are just $99. No negotiation, no hidden fees.

The .io extension is technically the country code TLD for the British Indian Ocean Territory, but it has been adopted by the global tech community as the go-to extension for startups, developer tools, and technology companies.

The popularity of .io exploded in the 2010s when startups began choosing it as a hip, modern alternative to .com. The "IO" letters also resonate with developers as they stand for "input/output" — a fundamental computing concept.

Why .io domains are valuable:

  • Strong tech and startup credibility
  • Short and clean-looking URLs
  • "Input/Output" association with developers
  • Popular for SaaS and API products
  • Growing recognition among mainstream users

Who should buy .io domains:

  • Tech startups and SaaS companies
  • Developer tools and APIs
  • Gaming companies
  • Blockchain and crypto projects
  • Anyone wanting a modern, techy vibe

Companies like Socket.io, Itch.io, and Figma (originally at figma.io) have helped cement .io as the startup extension of choice. NotRenewing often has quality .io domains listed at just $99 — far less than what new .io registrations cost at premium pricing.

Showing 50 of 131 .io domains available

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Why Buy Expiring Domains?·What Makes a Domain Valuable?·Domain Transfer Guide·Domain Glossary