List all available fonts in Adobe Illustrator using example text. I use it for testing how words look in all my fonts.

fontList.jsx

// script.name = fontList.jsx;
// script.description = creates a document and makes a list of all fonts seen by Illustrator;
// script.requirements = none; // runs on CS4 and newer;
// script.parent = eboney // 11/28/2017;
// script.elegant = false;

#target illustrator
#targetengine main
var edgeSpacing = 10;
var columnSpacing = 195;
var docPreset = new DocumentPreset;
docPreset.width = 800;
docPreset.height = 600;
var idoc = documents.addDocument(DocumentColorSpace.CMYK, docPreset);

var x = edgeSpacing;
var yyy = (idoc.height - edgeSpacing);
var fontCount = textFonts.length;
var col = 1;
var ABcount = 1;

var filterList = [
    "\-Light",
    "\-Italic",
    "\-Condensed",
    "\-Medium",
    "\-Bold",
    "\-Black",
    "\-Book",
    "\-Heavy",
    "\-UltraLight",
    "\-Oblique",
    "\-Thin",
    "Hebrew",
    "Braille",
    "Algeria",
    "Arabic",
    "Hiragino",
    "PingFang",
    "Wingding"
];

var content = prompt("Enter Sample Text (or empty for font names)", "", "Font List");


var prevFontName = "";


for (var i = 0; i < fontCount; i++) {

    var sFontName = textFonts[i].name;

    if (new RegExp(filterList.join("|")).test(sFontName)) {
        $.writeln('-------> ' + sFontName);
        continue;
        // At least one match
    }

    var splitname = sFontName.split('-');

    if (splitname.length ==1 ) {
        $.writeln(splitname[0] + '   ('+sFontName+')');
    } else if (splitname[1] !== "Regular" ) {
        $.writeln('-------> ' + sFontName);
    } else {
        $.writeln(sFontName);
    }

    //continue;

    var itext = idoc.textFrames.add();
    itext.textRange.characterAttributes.size = 12;
    if (content.length > 0) {
        itext.contents = content;
    } else {
        itext.contents = sFontName.replace('-Regular','');
    }

    //$.writeln(yyy);
    itext.top = yyy;
    itext.left = x;

    itext.textRange.characterAttributes.textFont = textFonts.getByName(textFonts[i].name);

    // check wether the text frame will go off the bottom edge of the document
    if ((yyy -= (itext.height)) <= 20) {
        yyy = (idoc.height - edgeSpacing);
        x += columnSpacing;
        col++;
        if (col > 4) {
            var ab = idoc.artboards[ABcount - 1].artboardRect;
            var abtop = ab[1];
            var ableft = ab[0];
            var abright = ab[2];
            var abbottom = ab[3];

            var ntop = abtop;
            var nleft = abright + edgeSpacing;
            var nbottom = abbottom;
            var nright = abright - ableft + nleft;

            var abRect = [nleft, ntop, nright, nbottom];
            var newAb = idoc.artboards.add(abRect);

            x = nleft + edgeSpacing;
            ABcount++;
            col = 1;
        }
    }
    //else yyy-=(itext.height);
}