Send private messages over a public channel

In plain words

This tool enables private message exchange between users on public platforms like GitHub where direct messaging isn't available. It allows developers to securely share sensitive information, such as source code or private details, without exposing it on public record or requiring participants to share personal contact information. The solution addresses the practical problem of maintaining privacy during collaborative development work conducted primarily on public channels.

written from the facts on this page · September 2026

From the sources

It appears that your browser does not permit long term data storage. While you may still use this app to receive new messages, you must not close it before you have received them or they will be permanently lost! Unable to persist a new key. This is likely because your storage is full. While you may still use this app to receive new messages, you must not close it before you have received them or they will be permanently lost! Alternatively, you can delete your old keys to free up space for new ones, but in doing so you will be unable to receive any message(s) bound to those key(s). A little utility that allows you to receive private messages over a public channel, such as a forum or chat…from plaintext.world

In the maker’s words, at launch

The other day I was on github assisting a compiler developer replicate an accidentally-quadratic observed behavior in generated code and was asked if I was willing to privately share my full source code with his company. While that was ultimately unnecessary as it was easy enough to find a simpler example, it did get…

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