Increase / decrease (Zoom) the Delphi IDE font

Download my free software to add hotkeys to the Delphi IDE to increase and decrease the font size in the code editor.


Update – Delphi 10.4

Delphi 10.4 has added a font zoom slider at the bottom of the screen

Hot Keys

My software uses these hot keys to change the front size in any version of Delphi

  • Shift Ctrl Alt [  decrease front size
  • Shift Ctrl Alt ]  increase font size

Other ways to change the font size

  1. The Delphi IDE already provides hot keys to change the font size
    Ctrl Numpad + to increase
    Ctrl Numpad – to decrease
    However, those keys only works on a numeric keypad like this.
    This does not work on most laptops that do not have a numeric keypad
  2. You can also change the font size using IDE options.
    – Old versions of Delphi
    Menu -> Tools -> Options -> Editor Options
    -> Display -> Editor Font Size

    – Latest version of Delphi
    Menu -> Tools -> Options -> User Interface -> Editor Options
    -> Display -> Editor Font Size


The software was written in AutoHotKey.  I was going to write it in Delphi, but I couldnt find my global hot key units so I had a quick coding frenzy and wrote it in AutoHotKey instead.

You dont need to install AutoHotKey as I have provided a compiled version


Slow Down !  If you press the hot keys too quickly Delphi will get confused and insert [ into your text


Download source code and compiled software, 32 and 64 bit

Legal Notices

Placed in the public domain.  Use at your own risk

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About Me


  • Oracle & Delphi software developer based in Perth, Western Australia
  • Australian Delphi User Group – President
  • Australian Oracle User Group – WA Committee Member
  • Available to do remote presentations to user groups on Delphi and Oracle topics
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Author: Scott Hollows

Enterprise software developer based in Perth, Western Australia. Oracle, Delphi, Data Warehouse design and ETL, Data Architect, Business Intelligence, Oracle performance tuning. Oracle ApEx, Discoverer, BI Publisher, OBIEE, Forms, Reports, SQL, PLSQL. Blockchain software development, cryptocurrency exchange integration and trading analysis Australian Delphi User Group (ADUG) - WA branch manager and past national president LinkedIn

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