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.
50 .io domains available
View all with filters →savr.io
Expense tracking app for millennials
campaigning.io
Political consultancy automation platform
capabilities.io
Enterprise talent assessment platform
bummer.io
Disappointment tracking app for millennials
workship.io
Remote team collaboration platform
spacegroup.io
Aerospace consortium or satellite venture collective
dailyplanner.io
Productivity app disrupting calendar chaos
socialagency.io
Social media marketing consultancy powerhouse
zugferd.io
Invoice automation software for German enterprises
hostscan.io
Network security monitoring SaaS platform
shopzone.io
E-commerce marketplace for niche product categories
sunlite.io
Solar panel monitoring SaaS dashboard
cardswap.io
Trading card marketplace disruption
finals.io
jugger.io
Combat sports training platform dominance
fatality.io
Gaming tournament platform for competitive esports
desking.io
Remote work management platform
puregenius.io
AI-powered innovation lab or breakthrough tech startup
mystablecoin.io
Launch regulated digital currency platform
thestablecoin.io
Cryptocurrency project building the next USDC competitor
aiupgrade.io
Transform legacy systems with AI automation tools
logicagent.io
AI-powered business automation platform
thefinancial.io
Fintech startup disrupting traditional banking
fundedbot.io
AI-powered investment matching platform
protocolagent.io
AI-powered network automation platform
serviceagents.io
AI-powered customer service automation platform
myworkshop.io
Build the Skillshare for hands-on learning
clueful.io
Smart analytics platform for data-driven decisions
techclaw.io
Cybersecurity firm specializing in threat detection
beby.io
Baby tech startup disrupting parenting apps
wrestler.io
Combat sports training platform or wrestling analytics app
altfinancial.io
Alternative lending platform for underbanked markets
rectifier.io
Power electronics startup disrupting energy conversion
communicators.io
Build the Slack competitor for remote teams
weeder.io
Cannabis cultivation software for growers
kiter.io
Kitesurfing gear rental and lesson booking platform
thankfully.io
Gratitude app that builds daily mindfulness habits
intended.io
Purposeful productivity app for goal-driven professionals
sendoff.io
Launch celebration planning platform
pronounced.io
Voice coaching platform for accent training
scoreboards.io
Sports analytics platform for real-time data
disrupter.io
Build the next industry-shaking startup
snuggles.io
Pet care app or cozy lifestyle brand
graphique.io
Design agency specializing in data visualization
luh.io
Voice AI startup with memorable branding
libi.io
AI-powered personal librarian service
nigo.io
Build the next-gen image optimization API
fvx.io
Fintech API platform for embedded payments
wgx.io
Gaming hardware startup or esports brand
gapyear.io
Study abroad programs and gap year planning platform