Here you can find some ZX Spectrum utilities I have developed for different purposes:

A-GLYPHER

I have written other software related to the ZX Spectrum, such as the Nutria emulator and the ZX Ecosystem library for writing ZX-like programs for modern computers in C++.

This is a ZX 48K utility written in both Sinclair BASIC and Z80 assembly that serves to edit the bitmaps of character banks. You can use it to create your own fonts and UDGs.

It provides some options that are not common in this kind of graphical editors: bitwise logic filters to mix characters in the bank and in the editor area, recording and replaying of macros to avoid repetitions of common actions, one-character animations to check the aspect of your graphics in a game-like setting, several transformations of bitmaps, and export not only to tape files but also to raw text through LPRINT, which can be leveraged in some emulators such as Fuse or Nutria-reboot.

You can download the last version as a .TAP file.

These utilities have been developed by me (Juan-Antonio Fernández-Madrigal).

If you are interested in this work, you can use "software" (remove quotes) at jafma.net.