Make gradient stops evenly spaced

Just throwing this out there for reference... I had a hacky script that does basically what you are asking so I cleaned it up for posting here. It is not built-in or perfect and it doesn’t cover some edge cases but it works great for simple tasks. Cheers!

/*
EqualizeGradientStops.jsx for Adobe Illustrator
-----------------------------------------------
Evenly distributes the gradient stops of selected objects between the first and last stop.

Created in response to this question on the Adobe forum:
https://community.adobe.com/questions-652/make-gradient-stops-evenly-spaced-1629107

Related Docs:
* Gradients - https://ai-scripting.docsforadobe.dev/jsobjref/Gradients/
* Gradient - https://ai-scripting.docsforadobe.dev/jsobjref/Gradient
* GradientColor - https://ai-scripting.docsforadobe.dev/jsobjref/GradientColor
* GradientStops - https://ai-scripting.docsforadobe.dev/jsobjref/GradientStops
* GradientStop - https://ai-scripting.docsforadobe.dev/jsobjref/GradientStop
*/

//@target illustrator

(function () {
    if (!app.documents.length) {
        alert("No active document.");
        return;
    }

    var doc = app.activeDocument;
    var sel = doc.selection;

    if (!sel.length) {
        alert("No active selection.");
        return;
    }

    var processedGradients = [];

    for (var i = 0; i < sel.length; i++) {
        var item = sel[i];

        // Skip anything that does not have a fill.
        if (!item.filled) {
            continue;
        }

        var fillColor = item.fillColor;

        // Skip anything that is not filled with a gradient.
        if (fillColor.typename !== "GradientColor") {
            continue;
        }

        var gradient = fillColor.gradient;

        // A gradient swatch can be used by multiple objects.
        // Once we edit the swatch, all matching objects update automatically.
        if (contains(processedGradients, gradient.name)) {
            continue;
        }

        spaceGradientStopsEvenly(gradient);
        processedGradients.push(gradient.name);
    }

    function spaceGradientStopsEvenly(gradient) {
        var stops = gradient.gradientStops;
        var totalStops = stops.length;

        // Two-stop gradients are already evenly spaced.
        if (totalStops <= 2) {
            return;
        }

        var start = stops[0].rampPoint;
        var end = stops[totalStops - 1].rampPoint;
        var gap = (end - start) / (totalStops - 1);

        for (var i = 1; i < totalStops - 1; i++) {
            stops[i].rampPoint = start + gap * i;
        }
    }

    function contains(arr, value) {
        for (var i = 0; i < arr.length; i++) {
            if (arr[i] === value) {
                return true;
            }
        }

        return false;
    }
})();