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Reviewed · Updated 2026-06-18

1SecMail

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

Reviewed by the Conversion Gems editorial team ·
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Pricing
Free
Best for
Testers
Category
Security, Privacy & Backup
The bottom line

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

6.8
Our score
6.8 / 10
Conversion Gems editorial verdict
Free; Pro API from $10/mo
Features6/10
6 - does receive-only disposable email very well; no sending, no inbox management, no attachments on free tier.
Value9/10
9 - free tier covers almost all personal and light dev use; $10/mo Pro API is among the cheapest in its niche.
Ease of use9/10
9 - zero-step onboarding; literally one page load to a working inbox.
Ecosystem4/10
4 - standalone tool; community PyPI/npm wrappers exist but no native integrations with broader platforms.
Support3/10
3 - no formal support channel; relies on community GitHub issues and documentation.
What it really is

1SecMail — free disposable/temporary email address generator for instant anonymous inbox creation.

Our take

1SecMail is a no-frills temporary email service, not an email marketing tool as the DB categorizes it. 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. The DB's 'freemium' price_tier is accurate; the 'Email Marketing' category label is the main mislabel to correct.

Why we rate it

Nails 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 catch

Receive-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 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)
Friction report
Time to value
Fast: open the site and a usable inbox is ready in under one second — no signup, no setup.
Scale breakpoint
Free public API has undisclosed rate limits; high-volume automation requires the $10/mo Pro key to avoid throttling.
Walled garden
Low: no account to lock into. Addresses are stateless and the API is standard REST, easily replaceable with a competing service.

A look inside

1SecMail product screenshot

Frequently Asked Questions

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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