Disposable Email Chrome Extension
Use OpenInbox for disposable email chrome extension with fast disposable inboxes and developer-friendly tools.
Your private inbox is one click away
Free, instant, no registration needed. Works with any service. Expires automatically after 1 hour.
Everything You Need in a Temporary Email
Instant Inbox
Generate a disposable email address in one click. No signup, no commitments.
Privacy First
Real inbox stays spam-free. Every temporary address auto-expires after 1 hour.
Receive Any Email
OTPs, confirmation links, newsletters — works with any sender that can reach the web.
Live Refresh
Messages appear automatically as they arrive. No manual page reload required.
Browser Extension
One-click temp address fill from the Chrome extension; all inboxes synced in real time.
Multiple Inboxes
Keep several disposable addresses open simultaneously for different testing scenarios.
How It Works
- 1
Visit openinbox.io or activate the Chrome extension.
- 2
Click "Generate Inbox" — your unique temporary email is ready.
- 3
Use that address on any website, form, or API.
- 4
All inbound email appears instantly in the secure viewer.
- 5
Access attachments, OTPs, or links directly from the viewer.
- 6
Inbox and all its emails are permanently deleted after 1 hour.
Common Use Cases
Testing registration and OTP flows in staging environments
Signing up for free trials without polluting your primary inbox
Receiving one-time confirmation links from any service
