There was a download of ZX-Editor 2.3.1 on the developer's website when we last checked. We cannot confirm if there is a free download of this software available. The software lies within System Utilities, more precisely Fonts.
This free PC software is developed for Windows XP/Vista/7/8/10/11 environment, 32-bit version. This free software is an intellectual property of Claus Jahn. The most frequent installer filename for the software is: ZXEditor.exe. We recommend checking the downloaded files with any free antivirus. The most popular versions of the software 2.3, 2.2 and 2.0.
From the developer:
ZX-Editor is a text editor for ZX-Spectrum emulator files, which supports (nearly all) functions you know from other text editors, and also Spectrum-related things like colour attributes, flashing, screen-files etc. You also can change the text style (italic, bold etc.) as well as text height, and 8x8-pixels fonts are supported.
You may want to check out more software, such as Skinner, Appraise-It or Commando, which might be similar to ZX-Editor.