How can I send an Expert Advisor (EA) to someone in MT5?

Yes, you can easily share an Expert Advisor with someone by sending them the EA file.

First, open MT5 and go to:

File → Open Data Folder → MQL5 → Experts

Inside the Experts folder, find the EA you want to share.

You will generally see the EA as a .ex5 file. This is the compiled Expert Advisor file that you can send to the other person.

After receiving the file, they can install it by:

1. Open MT5.
2. Go to File →Right Click → Open Data Folder.
3. Open MQL5 → Experts.
4. Copy the. ex5 file into the Experts folder.
5. Restart MT5, or right-click the Navigator window and select Refresh.
6. The EA should then appear under Navigator → Expert Advisors.

After that, they can drag the EA onto the required chart and enable Auto Trading if the EA requires it.

So, in simple terms:

Your MT5 → Open Data Folder → MQL5 → Experts → Copy the .ex5 file → Send it → Recipient places it in their MQL5 → Experts folder.

If you are the developer and want the recipient to modify the source code, you would need to send the .mq5 source file instead. For simply running the EA, the compiled .ex5 file is normally sufficient.