Real-time delivery

Catch OTPs.
Instantly.

Disposable inboxes for verification codes. No signup. Emails appear in under 2 seconds.

< 2s

Delivery time

Inboxes

0

Signup required

inbox.zephzap

Features

Real-time delivery

Emails arrive via Server-Sent Events. No polling, no refresh. Under 2 seconds from send to screen.

OTP extraction

Verification codes are automatically detected and highlighted with a one-click copy button.

Private inboxes

Create an account to own your inboxes. Private inboxes are invisible to everyone else.

7-day retention

Emails are automatically deleted after 7 days. Clean by design, no manual cleanup needed.

Custom addresses

Use a random address or pick your own. Any address on the domain works instantly.

Self-hostable

Fully open. Deploy on your own VPS with Coolify. No dependency on paid third-party services.

How it works

Three steps.
Zero friction.

No account needed for public inboxes. Open the page, get an address, receive emails. That's it.

01

Get an address

A random inbox is generated the moment you land. Or type any name you want.

swift-otter-4821@portfolios.cfd
02

Send email to it

Use it anywhere — signups, OTP flows, testing. Any email sent to that address arrives here.

POST /api/inbound-email → stored in < 500ms
03

Code appears instantly

The OTP is extracted and shown front and center. One click to copy. Done.

482910 ← copied

Get started free

Your inbox is
waiting.

No credit card. No setup. Open the inbox and start receiving emails in seconds.

Public inboxes need no account. Private inboxes require a free signup.