TempMail Is Now Using Bun!

We switched to Bun, and the results are outstanding

It’s been a while since we’ve posted last! In the background, the TempMail server is now faster than ever before, thanks to Bun.sh, a JavaScript runtime which has proven to be faster than the default Node runtime in our cases.

First Things First

Thank you to Ashton Memer for converting the server to Bun!


Since switching to Bun, we have seen the startup time for our server decrease from 15+ seconds to less than one second! Users were getting 500-level error codes because the default Node runtime could not keep up with the amount of request per second our server is getting. Since switching to bun, the average API request time went from 100 ms average to 20 milliseconds!

At peak, our service has had more than 200,000 inboxes active at any given time! A feat that would’ve resulted in many 500-level errors given the standard Node runtime.

In terms of memory, we’ve found that Bun, on average, uses 1.5 times more memory than the Node runtime. We believe that this is a fair tradeoff between performance and resources.

Next for TempMail and BananaCrumbs

We’re also excited to announce a new account system for BananaCrumbs, one where you can use your Email to register and create API keys! We will be releasing a post about this in the future.

Upcoming Updates for TempMail

See some of the upcoming features for TempMail in this article!

1,200,000 emails and 500 hourly inboxes are incredible numbers! With the growth of the website, I would like to make some additions to further help people with their privacy in using TempMail.

These features will be added during November of this year through February of next year. They will not be added in any particular order, though.

Desktop App

While navigating to the website is easy, a desktop app can save a few clicks. The desktop app will be available to download on Windows, Mac, and Linux-based systems in the upcoming month.

POP3/IMAP Support

This has been planned for a while. Our customized protocol is not compatible with others; however, we plan to add support for POP3/IMAP soon as well. The intended design will allow users to sign in with the temporary email with the token as the password, instead of using HTTPS with our own protocol.

More Language Support

English is one of the most common languages; however, a great deal of our traffic comes from outside English-speaking countries. We will add multiple language support for the website. Our app, AnonyMail, already supports a few languages!

More (Programming) Language Support

We plan to create more libraries for more programming languages. As of now, we have one for JavaScript, Java, and Python, which are the most commonly used languages for scripting. Our next target languages include Rust, C, and Go.


Thank you to everyone who has used the website so far, and to those who will use it in the future! If you have any questions, feel free to write a comment below.