Alternatives to JSesh

There are a number of other hieroglyphic wordprocessors. Many of them are not distributed anymore, but when they still have a web site, I provide a link.

A detailled review of Hieroglyphic text processor can be found in Gozzoli, Roberto B. 2013. ‘Hieroglyphic Text Processors, Manuel de Codage, Unicode, and Lexicography.’ In Texts, Languages & Information Technology in Egyptology, edited by Jean Winand, Stéphane Polis, and Todd Gillen. Presses Universitaires de Liège.

Winglyph
successor to Glyph, written by Hans van den Berg for the CCER (Center for Computer-aided Egyptological Research); was used for many epoch-making publications, such as the Chapelles Osiriennes de Dendera;
Macscribe
the first editor written for Mac, written by Éric Aubourg; was also distributed by the CCER ;
Inscribe
developped by Bob Richmond (Saqqarah Technology) ; was very well integrated with early versions of Windows, through Object Linking and Embedding, a technology which allowed easy communication between software.
Webglyph
an improved online port of the original Glyph software, by its authors, Ed J.P.M. de Moel and Jan Buurman ; you can either request a personnal code or (according to the mail in the EEF list use code guest both as login and password.
VisualGlyph
a facsimile oriented editor, which allows one to mix hieroglyphs and drawing.
IGlyph
successor to VisualGlyph By Ivan Subotic and Günther Lapp.
Got
developped Michel Guay et Charles Bédard, with very nice XVIIIth dynasty glyphs, along with a rich documentation;
SignWriter
a recent and active system by Phil Robinson; couple a hieroglyphic editor with a dictionary.

Mark-Jan Nederhof's softwares

Mark-Jan is a professor of computer science, and a respected expert in Natural Language Processing.

He has created a number of very interesting tools for egyptian and hieroglyphs. They probably lack a bit of user-friendly polish if you want to create data for them, but they are very powerful.