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Kobel›Guides›ChatGPT and your files

Let ChatGPT work with your files. Only the ones you choose.

ChatGPT can now open and edit files on your computer. That saves a lot of copying and pasting. Kobel decides which folders ChatGPT may see and what it may do there, so everything else on your computer stays private.

Free basic version. No account, no cloud. Your files stay on your computer. Last checked: September 2026

Without Kobel, ChatGPT gets the whole folder

When you connect ChatGPT to a folder, it usually gets everything inside it. It can read every file, change it and delete it. It cannot tell your project notes from your payroll. One misunderstood instruction is enough.

ChatGPT connected to "Documents"
full access
  • Project plan.docxopen
  • Invoices 2026.xlsxopen
  • Payroll September.pdfopen
  • Contract Weber Ltd.pdfopen
  • Passwords.txtopen
Everything is open. The AI can read, change and delete any of these files, and nothing records what it did.

With Kobel, you decide folder by folder

Kobel sits between ChatGPT and your files. You give every folder a colour, and ChatGPT gets exactly that. ChatGPT cannot open red folders, and anything you never add to Kobel does not exist for it. Every change is written to a log you can check later.

ChatGPT
asks
Kobelchecks every request
only what you allow
  • Project plan.docxedit
  • Invoices 2026.xlsxedit + backup
  • Price list.pdfread only
Activity log, example
09:14read  Project plan.docx
09:16saved, backup kept  Invoices 2026.xlsx
09:17blocked  Payroll September.pdf
Same computer, same ChatGPT. The project folder is open, the invoices are protected by an automatic backup, and payroll and passwords stay out of reach.

What you use it for day to day

A few examples, and which colour the folder gets for each.

Yellow

Summarise your invoices

"Which invoices from August are still unpaid?" ChatGPT reads the folder and answers in one sentence. Yellow is enough for that.

Orange

A quote from a template

ChatGPT fills your quote template with the customer's details. The template itself stays untouched, because the folder is orange.

Teal

Clean up a spreadsheet

Remove duplicate rows, sort columns, add totals. In a teal folder, Kobel keeps a backup first.

Red

Private folders stay private

You mark tax, payroll and passwords red, so ChatGPT cannot open them. Or you never add them to Kobel at all, and ChatGPT does not even know they exist.

Ready in three steps

  1. Install Kobel

    From the Microsoft Store or the Mac App Store. The basic version is free.

  2. Add one folder

    Drag a folder into Kobel and pick a colour. A good start is one project folder on "read only".

  3. Connect ChatGPT

    Open "Connect AI" in Kobel and choose ChatGPT. Kobel walks you through it one step at a time and shows when the connection is ready.

The five colours: one per folder, no settings files

Every folder, program and account in Kobel has exactly one of these levels. You can change it with one click at any time.

The same rules for every AI you use

You set your colours once. They apply to every AI app you connect to Kobel.

ChatGPTClaudeGitHub CopilotCursorGeminiand more

Runs on your computer

Kobel is a desktop app for Windows and macOS. There is no Kobel server that sees your files.

Your logins stay with you

Access to connected apps is stored on your device, on Windows in the system's protected key store.

You can check everything

The activity log shows what the AI changed and what was blocked. If you want, it records every read as well. The AI itself cannot reach it.

Frequently asked questions

Can ChatGPT open a folder I marked red?

No. The AI can neither read nor change the content of red folders. It can still see the name. If you want that gone too, simply do not add the folder to Kobel. Anything that is not in Kobel does not exist for the AI.

Does Kobel send my files anywhere?

Kobel itself sends nothing to any server. When ChatGPT opens a file you allowed, that content becomes part of your chat, exactly as if you had pasted it. That is why the colours matter: they decide what can get there at all.

Can I undo a change ChatGPT made?

Yes, if the folder is teal. Kobel keeps a copy before every change, and a right click on "Restore original" brings back the state before the last change.

Do I need technical knowledge?

No. You drag in folders and pick colours. Connecting ChatGPT is guided step by step inside the app.

What does Kobel cost?

The basic version is free. Pro costs 49 euros once or 3.90 euros per month.

Try it with a single folder

Install Kobel, drag in one folder, set it to "read only" and connect ChatGPT. It takes about two minutes and costs nothing.