Guerrilla Mail
Free disposable email addresses to keep spam out of your real inbox
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Pricing
Free · from $0.83/mo
API
Yes
Open source
Yes
Company
Jamit Software Limited
Founded
2006
Platforms
What is Guerrilla Mail?
Guerrilla Mail is a disposable temporary email service. Opening the site gives you a random inbox address on one of several domains, such as sharklasers.com, grr.la or guerrillamail.com. You can use it for signups and other places where you don't want to hand over your real email address. You can read incoming mail, compose messages, scramble the address or use the "Forget Me" button to drop the current inbox.
People who own a domain can connect it to Guerrilla Mail for $9.99 USD a year, paid by Bitcoin or PayPal. Mail sent to that domain can be private to the owner or open to everyone. The free service shows ads.
The mail backend runs on Go-Guerrilla, the company's own open-source mail server. The site also offers an API and is available in more than a dozen languages. Jamit Software Limited has run it since 2006.
Key features
- Instant random disposable inbox without signup
- 11 shared domains to choose from
- Scramble address and Forget Me controls
- Compose and send email
- Custom domain support for $9.99/year
- Public API
- Open-source Go-Guerrilla mail server backend
- Interface in 15+ languages
Use cases
Who it's for
Avoiding spam on signups
Give websites a throwaway address so promotional mail never reaches your real inbox.
Quick account verification
Get a confirmation email on a temporary address and drop the inbox when you're done.
Catch-all for your own domain
Send mail for a domain you own to Guerrilla Mail and keep the inbox private or make it public.
Automated testing
Use the API to create inboxes and read mail in scripts.
Guerrilla Mail pricing
From the vendor's site, checked Nov 7, 2026. Prices change — confirm on their pricing page.
| Plan | Free | Custom domain |
|---|---|---|
| Paid monthly | Free | yearly only$9.99 billed yearly |
| Paid yearly | Free | $0.83/mo |
| Domain | 11 shared domains | Your own domain |
| Address type | Random disposable | Private or public access |
| Also | — |
|
Get an email when Guerrilla Mail changes its prices
One mail per change, a stop link in each. Nothing else.
How Guerrilla Mail compares
- Guerrilla Mail has a free plan, like all 2 alternatives below.
- It offers an API, which only 1 of the others does.
- It is open source, the only one here.
| Tool | Starts at | Free plan | Free trial | API | Open source | |
|---|---|---|---|---|---|---|
| GGuerrilla Mail | $0.83/mo | — | ||||
T Temp-Mail | $5/mo | — | — | Guerrilla Mail vs Temp-Mail | ||
1 10 Minute Mail | Free | — | — | — | Guerrilla Mail vs 10 Minute Mail |
The closest alternatives in our directory by category. “Starts at” is the cheapest paid plan per month, as each vendor lists it.
Pros and cons
Strengths
- Free to use with no registration
- Many alternative domains available
- Mail server is open source
- Custom domain option costs only $9.99 a year
Limitations
- Free version shows ads
- Custom domain payment only via Bitcoin or PayPal
Guerrilla Mail FAQ
Is Guerrilla Mail free?
Yes, disposable addresses are free. Using your own domain costs $9.99 USD per year.
Can I use my own domain?
Yes. Mail to your domain can be accessible only to you or open to everyone.
How do I pay for the domain feature?
With Bitcoin or PayPal.
Is there an API?
Yes, the site links to a Guerrilla Mail API.
Is it open source?
The mail backend, Go-Guerrilla, is an open-source project on GitHub.
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Guerrilla Mail
Free · from $0.83/mo