File Concat Tool

Pasting a dozen files into a chat window one at a time gets old fast, and File Concat Tool exists to skip that step.

File Concat Tool is a free offline file combiner that merges multiple files into one formatted document you can hand to an AI assistant such as ChatGPT or Claude.

It works with code, documents and configuration files, so a small project or a handful of notes can become a single block of text.

Everything is processed on your local machine, which matters if the files are private or belong to an employer and you would rather not upload them to a separate converter first.

The output is formatted with Large Language Models in mind, so the assistant can tell where one file ends and the next begins.

There is no price to weigh.

Developers and anyone preparing material for an AI assistant will find it a simple, practical utility.