What is OpenInbox used for?

OpenInbox is a free disposable email inbox that needs no signup, highlights verification codes and offers an API, webhooks and custom domains for developers. It is a good fit for signing up for trials without exposing a real address and QA testing of registration emails.

Yes. OpenInbox has a free plan, and paid plans start at $2 as a one-time payment.

Is OpenInbox open source?

No. OpenInbox is proprietary (closed-source) software and can't be self-hosted. In the Email Clients & Servers category, open-source options include Thunderbird for Android, Tuta and SimpleLogin.

What are some alternatives to OpenInbox?

OpenInbox competes with Mailtrap, ChatTempMail and AgentInbox.

OpenInbox: features, pricing and alternatives

About OpenInbox

OpenInbox creates a temporary inbox the moment you load the page. You paste the address into sign-up forms, newsletters or download gates, emails arrive in real time without refreshing, verification codes and one-time passwords are detected and highlighted for copying, and attachments up to 25 MB per message are supported. The free inbox deletes itself after an hour.

It works without an account, name or phone number, and is available on the web, as a Chrome extension, as Android and iOS apps and through a Telegram bot where you send a command to create an inbox. Developers get an API, webhooks and custom domains, which suits QA testing of sign-up flows. Paid plans keep inboxes longer, and the site is powered by Cloudflare.

Key features

Disposable inbox with no signup
Real-time email delivery
Verification code detection
Attachments up to 25 MB
Chrome extension, mobile apps and Telegram bot
API, webhooks and custom domains

Good fit for

Signing up for trials without exposing a real address
QA testing of registration emails

Tags: temporary-email; disposable-email; api; webhooks; otp; qa-testing; privacy

OpenInbox: questions and answers

What is OpenInbox used for?: OpenInbox is a free disposable email inbox that needs no signup, highlights verification codes and offers an API, webhooks and custom domains for developers. It is a good fit for signing up for trials without exposing a real address and QA testing of registration emails.
Is OpenInbox free?: Yes. OpenInbox has a free plan, and paid plans start at $2 as a one-time payment.
Is OpenInbox open source?: No. OpenInbox is proprietary (closed-source) software and can't be self-hosted. In the Email Clients & Servers category, open-source options include Thunderbird for Android, Tuta and SimpleLogin.
What are some alternatives to OpenInbox?: OpenInbox competes with Mailtrap, ChatTempMail and AgentInbox.