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1SecMail

Provides temporary email addresses for secure, anonymous online sign-ups.

Our take: 1SecMail is a no-frills temporary email service.

Best forTesters
ReviewedPricing: Free
6.8 out of 105 criteria · see breakdown
Try 1SecMailFree; Pro API from $10/mo
The bottom line

The fastest path to a disposable inbox — completely free, no account needed, with a cheap developer API.

Our score

Reviewed by the Conversion Gems editorial team. Hover a facet to focus it; click to pin.Tap a facet to focus it.

What it is, and why we rate it

One line each. Open a row for detail.

What it really is1SecMail — free disposable/temporary email address generator for instant anonymous inbox creation.
Our take1SecMail is a no-frills temporary email service.
It belongs in Privacy / Disposable Email. The core service is entirely free with zero registration — visit the site, get a throwaway address, receive emails, move on. A Pro API tier ($10/mo) exists for developers needing unlimited programmatic access.
Why we rate itNails its single job — instant anonymous inbox — better than almost any competitor for sheer speed and zero friction.
The free public API and $10/mo Pro plan make it unusually accessible for developers compared to pricier disposable-email API services.
The catchReceive-only (no sending).
Emails may be session-dependent or expire within 2 days. Addresses are publicly guessable by anyone who knows your login, so unsuitable for anything sensitive. No customer support to speak of.

Best / not good for

Best for
  • QA and developers testing email verification flows
  • Privacy-conscious users avoiding marketing lists and spam
  • Quick one-off signups or trial activations without exposing a real address
Not good for
  • Any use case requiring email sending or two-way communication
  • Long-lived or sensitive inboxes — addresses are ephemeral and semi-public
  • Email marketing or CRM workflows (wrong tool category entirely)
Trade-offs

Friction report

Trade-offs to know before signing up.

  1. Time to value
    Fast: open the site and a usable inbox is ready in under one second — no signup, no setup.
  2. Scale breakpoint
    Free public API has undisclosed rate limits; high-volume automation requires the $10/mo Pro key to avoid throttling.
  3. Walled garden
    Low: no account to lock into. Addresses are stateless and the API is standard REST, easily replaceable with a competing service.
Still a fit?
If none of these block you, start on the free plan.
Try 1SecMail

A look inside

1SecMail product screenshot

Frequently Asked Questions

Are there any restrictions on the number of projects I can create?

Project creation is generally unlimited, though some plans may have limits based on team size or storage.

Can users generate temporary email addresses to avoid spam?

Yes, users can generate temporary email addresses to protect privacy, avoid spam, and manage online registrations securely.

How does 1SecMail help in creating temporary email addresses to protect privacy?

1SecMail creates temporary email addresses to protect privacy and reduce spam for online sign-ups.

How does this disposable email service provide temporary, anonymous email addresses for verification?

Disposable email services provide temporary, anonymous addresses for verification, protecting privacy and preventing spam in online registrations.

What solutions does this tool provide for generating disposable email addresses quickly?

It generates disposable email addresses quickly for testing, privacy protection, and temporary communication needs.

Alternatives

  • Step up

    Mailinator (Pro) or Guerrilla Mail for team-shared inboxes and more robust API SLAs.

  • Lighter alternative

    temp-mail.org or Throwam for a similarly frictionless one-click disposable address.

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Tags

#TemporaryEmail#Privacy

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