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>log in to commentWe built 1sec.email to give developers a fast, zero‑disk disposable inbox that protects privacy without any sign‑up. It generates a random address instantly, delivers emails in under a second via SSE, and auto‑deletes data after 24 hours. Let us know what you think 😊
1sec.email provides instant, zero-disk temporary email addresses with a free public API for testing email flows.
- for
- Developers, QA engineers, and anyone needing disposable email for testing or privacy.
- pricing
- free
Key features
- Zero-Disk Architecture — Emails are stored only in RAM, ensuring no data is written to disk.
- Real-Time Inbox (SSE) — Receive emails instantly via Server-Sent Events, typically under one second.
- Ad-Free Interface — A clean UI without pop-ups or advertisements.
- Custom Username & QR Sync — Create custom addresses and sync to mobile via QR code.
- Public JSON API — GET https://1sec.email/api/emails?address=you@1sec.email returns inbox as JSON.
- Auto-Deletion — Inbox and emails are automatically removed after 24 hours.
Use cases
- Test signup and password-reset flows in CI pipelines
- Verify OTPs and confirmation links during QA
- Register for public Wi-Fi without exposing personal email
1sec.email FAQ
How long does a 1sec.email address remain active?+
By default the address and its inbox stay active for 24 hours, after which all data is permanently deleted.
Can I send emails from 1sec.email?+
No, the service only receives emails; sending is disabled to prevent abuse.
Is 1sec.email safe for sensitive accounts?+
It is recommended only for non-sensitive accounts, as temporary emails are meant for transient use despite strong security.
Is there a cost to use 1sec.email?+
The core temporary email service is completely free; premium features are available for a fee.
Do I need an API key to use the public API?+
No API key is required; the API is publicly accessible without registration.
Summarized by DevHunt from 1sec.email · Sep 30, 2026. Details may change; check the official site.
