diff --git a/javascript/ComponentControllers.js b/javascript/ComponentControllers.js
new file mode 100644
index 00000000..2888679b
--- /dev/null
+++ b/javascript/ComponentControllers.js
@@ -0,0 +1,259 @@
+/* This is a basic library that allows controlling elements that take some form of user input.
+
+This was previously written in typescript, where all controllers implemented an interface. Not
+all methods were needed in all the controllers, but it was done to keep a common interface, so
+your main app can serve as a controller of controllers.
+
+These controllers were built to work on the shapes of html elements that gradio components use.
+
+There may be some notes in it that only applied to my use case, but I left them to help others
+along.
+
+You will need the parent element for these to work.
+The parent element can be defined as the element (div) that gets the element id when assigning
+an element id to a gradio component.
+
+Example:
+  gr.TextBox(value="...", elem_id="THISID")
+
+Basic usage, grab an element that is the parent container for the component.
+
+Send it in to the class, like a function, don't forget the "new" keyword so it calls the constructor
+and sends back a new object.
+
+Example:
+
+let txt2imgPrompt = new TextComponentController(gradioApp().querySelector("#txt2img_prompt"))
+
+Then use the getVal() method to get the value, or use the setVal(myValue) method to set the value.
+
+Input types that are groups, like Checkbox groups (not individual checkboxes), take in an array of values.
+
+Checkbox group has to reset all values to False (unchecked), then set the values in your array to true (checked).
+If you don't hold a reference to the values (the labels in string format), you can acquire them using the getVal() method.
+*/
+class DropdownComponentController {
+    constructor(element) {
+        this.element = element;
+        this.childSelector = this.element.querySelector('select');
+        this.children = new Map();
+        Array.from(this.childSelector.querySelectorAll('option')).forEach(opt => this.children.set(opt.value, opt));
+    }
+    getVal() {
+        return this.childSelector.value;
+    }
+    updateVal(optionElement) {
+        optionElement.selected = true;
+    }
+    setVal(name) {
+        this.updateVal(this.children.get(name));
+        this.eventHandler();
+    }
+    eventHandler() {
+        this.childSelector.dispatchEvent(new Event("change"));
+    }
+}
+class CheckboxComponentController {
+    constructor(element) {
+        this.element = element;
+        this.child = this.element.querySelector('input');
+    }
+    getVal() {
+        return this.child.checked;
+    }
+    updateVal(checked) {
+        this.child.checked = checked;
+    }
+    setVal(checked) {
+        this.updateVal(checked);
+        this.eventHandler();
+    }
+    eventHandler() {
+        this.child.dispatchEvent(new Event("change"));
+    }
+}
+class CheckboxGroupComponentController {
+    constructor(element) {
+        this.element = element;
+        //this.checkBoxes = new Object;
+        this.children = new Map();
+        Array.from(this.element.querySelectorAll('input')).forEach(input => this.children.set(input.nextElementSibling.innerText, input));
+        /* element id gets use fieldset, grab all inputs (the bool val) get the userfriendly label, use as key, put bool value in mapping   */
+        //Array.from(this.component.querySelectorAll("input")).forEach( _input => this.checkBoxes[_input.nextElementSibling.innerText] = _input)
+        /*Checkboxgroup structure
+        <fieldset>
+            <div> css makes translucent
+            <span>
+              serves as label for component
+            </span>
+            <div data-testid='checkbox-group'> container for checkboxes
+                <label>
+                    <input type=checkbox>
+                    <span>checkbox words</span>
+                </label>
+                ...
+            </div>
+        </fieldset>
+        */
+    }
+    updateVal(label) {
+        /*********
+         calls updates using a throttle or else the backend does not get updated properly
+         * ********/
+        setTimeout(() => this.conditionalToggle(true, this.children.get(label)), 2);
+    }
+    setVal(labels) {
+        /* Handles reset and updates all in array to true */
+        this.reupdateVals();
+        labels.forEach(l => this.updateVal(l));
+    }
+    getVal() {
+        //return the list of values that are true
+        return [...this.children].filter(([k, v]) => v.checked).map(arr => arr[0]);
+    }
+    reupdateVals() {
+        /**************
+         * for reupdating all vals, first set to false
+         **************/
+        this.children.forEach(inputChild => this.conditionalToggle(false, inputChild));
+    }
+    conditionalToggle(desiredVal, inputChild) {
+        //This method behaves like 'set this value to this'
+        //Using element.checked = true/false, does not register the change, even if you called change afterwards,
+        //  it only sets what it looks like in our case, because there is no form submit, a person then has to click on it twice.
+        //Options are to use .click() or dispatch an event
+        if (desiredVal != inputChild.checked) {
+            inputChild.dispatchEvent(new Event("change")); //using change event instead of click, in case browser ad-blockers blocks the click method
+        }
+    }
+    eventHandler(checkbox) {
+        checkbox.dispatchEvent(new Event("change"));
+    }
+}
+class RadioComponentController {
+    constructor(element) {
+        this.element = element;
+        this.children = new Map();
+        Array.from(this.element.querySelectorAll("input")).forEach(input => this.children.set(input.value, input));
+    }
+    getVal() {
+        //radio groups have a single element that's checked is true
+        //           as array       arr k,v pair    element.checked  ) -> array of len(1) with [k,v] so either [0] [1].value
+        return [...this.children].filter(([l, e]) => e.checked)[0][0];
+        //return Array.from(this.children).filter( ([label, input]) => input.checked)[0][1].value
+    }
+    updateVal(child) {
+        this.eventHandler(child);
+    }
+    setVal(name) {
+        //radio will trigger all false except the one that get the event change
+        //to keep the api similar, other methods are still called
+        this.updateVal(this.children.get(name));
+    }
+    eventHandler(child) {
+        child.dispatchEvent(new Event("change"));
+    }
+}
+class NumberComponentController {
+    constructor(element) {
+        this.element = element;
+        this.childNumField = element.querySelector('input[type=number]');
+    }
+    getVal() {
+        return this.childNumField.value;
+    }
+    updateVal(text) {
+        this.childNumField.value = text;
+    }
+    eventHandler() {
+        this.element.dispatchEvent(new Event("input"));
+    }
+    setVal(text) {
+        this.updateVal(text);
+        this.eventHandler();
+    }
+}
+class SliderComponentController {
+    constructor(element) {
+        this.element = element;
+        this.childNumField = this.element.querySelector('input[type=number]');
+        this.childRangeField = this.element.querySelector('input[type=range]');
+    }
+    getVal() {
+        return this.childNumField.value;
+    }
+    updateVal(text) {
+        //both are not needed, either works, both are left in so one is a fallback in case of gradio changes 
+        this.childNumField.value = text;
+        this.childRangeField.value = text;
+    }
+    eventHandler() {
+        this.element.dispatchEvent(new Event("input"));
+        this.childNumField.dispatchEvent(new Event("input"));
+        this.childRangeField.dispatchEvent(new Event("input"));
+    }
+    setVal(text) {
+        this.updateVal(text);
+        this.eventHandler();
+    }
+}
+class TextComponentController {
+    constructor(element) {
+        this.element = element;
+        this.child = element.querySelector('textarea');
+    }
+    getVal() {
+        return this.child.value;
+    }
+    eventHandler() {
+        this.element.dispatchEvent(new Event("input"));
+        this.child.dispatchEvent(new Event("change"));
+        //Workaround to solve no target with v(o) on eventhandler, define my own target
+        let ne = new Event("input");
+        Object.defineProperty(ne, "target", { value: this.child });
+        this.child.dispatchEvent(ne);
+    }
+    updateVal(text) {
+        this.child.value = text;
+    }
+    appendValue(text) {
+        //might add delimiter option
+        this.child.value += ` ${text}`;
+    }
+    setVal(text, append = false) {
+        if (append) {
+            this.appendValue(text);
+        }
+        else {
+            this.updateVal(text);
+        }
+        this.eventHandler();
+    }
+}
+class JsonComponentController extends TextComponentController {
+    constructor(element) {
+        super(element);
+    }
+    getVal() {
+        return JSON.parse(this.child.value);
+    }
+}
+class ColorComponentController {
+    constructor(element) {
+        this.element = element;
+        this.child = this.element.querySelector('input[type=color]');
+    }
+    updateVal(text) {
+        this.child.value = text;
+    }
+    getVal() {
+        return this.child.value;
+    }
+    setVal(text) {
+        this.updateVal(text);
+        this.eventHandler();
+    }
+    eventHandler() {
+        this.child.dispatchEvent(new Event("input"));
+    }
+}
diff --git a/javascript/aspectRatioSliders.js b/javascript/aspectRatioSliders.js
new file mode 100644
index 00000000..3def5158
--- /dev/null
+++ b/javascript/aspectRatioSliders.js
@@ -0,0 +1,181 @@
+class AspectRatioSliderController {
+    constructor(widthSlider, heightSlider, ratioSource, roundingSource, roundingMethod) {
+        //References
+        this.widthSlider = new SliderComponentController(widthSlider);
+        this.heightSlider = new SliderComponentController(heightSlider);
+        this.ratioSource = new DropdownComponentController(ratioSource);
+        this.roundingSource = new CheckboxComponentController(roundingSource);
+        this.roundingMethod = new RadioComponentController(roundingMethod);
+        this.roundingIndicatorBadge = document.createElement("div");
+        // Badge implementation
+        this.roundingIndicatorBadge.innerText = "📐";
+        this.roundingIndicatorBadge.classList.add("rounding-badge");
+        this.ratioSource.element.appendChild(this.roundingIndicatorBadge);
+        // Check initial value of ratioSource to set badge visbility
+        let initialRatio = this.ratioSource.getVal();
+        if (!initialRatio.includes(":")) {
+            this.roundingIndicatorBadge.style.display = "none";
+        }
+        //Adjust badge icon if rounding is on
+        if (this.roundingSource.getVal()) {
+            //this.roundingIndicatorBadge.classList.add("active");
+            this.roundingIndicatorBadge.innerText = "📏";
+        }
+        //Make badge clickable to toggle setting
+        this.roundingIndicatorBadge.addEventListener("click", () => {
+            this.roundingSource.setVal(!this.roundingSource.getVal());
+        });
+        //Make rounding setting toggle badge text and style if setting changes
+        this.roundingSource.child.addEventListener("change", () => {
+            if (this.roundingSource.getVal()) {
+                //this.roundingIndicatorBadge.classList.add("active");
+                this.roundingIndicatorBadge.innerText = "📏";
+            }
+            else {
+                //this.roundingIndicatorBadge.classList.remove("active");
+                this.roundingIndicatorBadge.innerText = "📐";
+            }
+            this.adjustStepSize();
+        });
+        //Other event listeners
+        this.widthSlider.childRangeField.addEventListener("change", (e) => { e.preventDefault(); this.resize("width"); });
+        this.widthSlider.childNumField.addEventListener("change", (e) => { e.preventDefault(); this.resize("width"); });
+        this.heightSlider.childRangeField.addEventListener("change", (e) => { e.preventDefault(); this.resize("height"); });
+        this.heightSlider.childNumField.addEventListener("change", (e) => { e.preventDefault(); this.resize("height"); });
+        this.ratioSource.childSelector.addEventListener("change", (e) => {
+            e.preventDefault();
+            //Check and toggle display of badge conditionally on dropdown selection
+            if (!this.ratioSource.getVal().includes(":")) {
+                this.roundingIndicatorBadge.style.display = 'none';
+            }
+            else {
+                this.roundingIndicatorBadge.style.display = 'block';
+            }
+            this.adjustStepSize();
+        });
+    }
+    resize(dimension) {
+        //For moving slider or number field
+        let val = this.ratioSource.getVal();
+        if (!val.includes(":")) {
+            return;
+        }
+        let [width, height] = val.split(":").map(Number);
+        let ratio = width / height;
+        if (dimension == 'width') {
+            let newHeight = parseInt(this.widthSlider.getVal()) / ratio;
+            if (this.roundingSource.getVal()) {
+                switch (this.roundingMethod.getVal()) {
+                    case 'Round':
+                        newHeight = Math.round(newHeight / 8) * 8;
+                        break;
+                    case 'Ceiling':
+                        newHeight = Math.ceil(newHeight / 8) * 8;
+                        break;
+                    case 'Floor':
+                        newHeight = Math.floor(newHeight / 8) * 8;
+                        break;
+                }
+            }
+            this.heightSlider.setVal(newHeight.toString());
+        }
+        else if (dimension == "height") {
+            let newWidth = parseInt(this.heightSlider.getVal()) * ratio;
+            if (this.roundingSource.getVal()) {
+                switch (this.roundingMethod.getVal()) {
+                    case 'Round':
+                        newWidth = Math.round(newWidth / 8) * 8;
+                        break;
+                    case 'Ceiling':
+                        newWidth = Math.ceil(newWidth / 8) * 8;
+                        break;
+                    case 'Floor':
+                        newWidth = Math.floor(newWidth / 8) * 8;
+                        break;
+                }
+            }
+            this.widthSlider.setVal(newWidth.toString());
+        }
+    }
+    adjustStepSize() {
+        /* Sets scales/precision/rounding steps;*/
+        let val = this.ratioSource.getVal();
+        if (!val.includes(":")) {
+            //If ratio unlocked
+            this.widthSlider.childRangeField.step = "8";
+            this.widthSlider.childRangeField.min = "64";
+            this.widthSlider.childNumField.step = "8";
+            this.widthSlider.childNumField.min = "64";
+            this.heightSlider.childRangeField.step = "8";
+            this.heightSlider.childRangeField.min = "64";
+            this.heightSlider.childNumField.step = "8";
+            this.heightSlider.childNumField.min = "64";
+            return;
+        }
+        //Format string and calculate step sizes
+        let [width, height] = val.split(":").map(Number);
+        let decimalPlaces = (width.toString().split(".")[1] || []).length;
+        //keep upto 6 decimal points of precision of ratio
+        //euclidean gcd does not support floats, so we scale it up 
+        decimalPlaces = decimalPlaces > 6 ? 6 : decimalPlaces;
+        let gcd = this.gcd(width * 10 ** decimalPlaces, height * 10 ** decimalPlaces) / 10 ** decimalPlaces;
+        let stepSize = 8 * height / gcd;
+        let stepSizeOther = 8 * width / gcd;
+        if (this.roundingSource.getVal()) {
+            //If rounding is on set/keep default stepsizes
+            this.widthSlider.childRangeField.step = "8";
+            this.widthSlider.childRangeField.min = "64";
+            this.widthSlider.childNumField.step = "8";
+            this.widthSlider.childNumField.min = "64";
+            this.heightSlider.childRangeField.step = "8";
+            this.heightSlider.childRangeField.min = "64";
+            this.heightSlider.childNumField.step = "8";
+            this.heightSlider.childNumField.min = "64";
+        }
+        else {
+            //if rounding is off, set step sizes so they enforce snapping
+            //min is changed, because it offsets snap positions
+            this.widthSlider.childRangeField.step = stepSizeOther.toString();
+            this.widthSlider.childRangeField.min = stepSizeOther.toString();
+            this.widthSlider.childNumField.step = stepSizeOther.toString();
+            this.widthSlider.childNumField.min = stepSizeOther.toString();
+            this.heightSlider.childRangeField.step = stepSize.toString();
+            this.heightSlider.childRangeField.min = stepSize.toString();
+            this.heightSlider.childNumField.step = stepSize.toString();
+            this.heightSlider.childNumField.min = stepSize.toString();
+        }
+        let currentWidth = parseInt(this.widthSlider.getVal());
+        //Rounding treated kinda like pythons divmod
+        let stepsTaken = Math.round(currentWidth / stepSizeOther);
+        //this snaps it to closest rule matches (rules being html step points, and ratio)
+        let newWidth = stepsTaken * stepSizeOther;
+        this.widthSlider.setVal(newWidth.toString());
+        this.heightSlider.setVal(Math.round(newWidth / (width / height)).toString());
+    }
+    gcd(a, b) {
+        //euclidean gcd
+        if (b === 0) {
+            return a;
+        }
+        return this.gcd(b, a % b);
+    }
+    static observeStartup(widthSliderId, heightSliderId, ratioSourceId, roundingSourceId, roundingMethodId) {
+        let observer = new MutationObserver(() => {
+            let widthSlider = document.querySelector("gradio-app").shadowRoot.getElementById(widthSliderId);
+            let heightSlider = document.querySelector("gradio-app").shadowRoot.getElementById(heightSliderId);
+            let ratioSource = document.querySelector("gradio-app").shadowRoot.getElementById(ratioSourceId);
+            let roundingSource = document.querySelector("gradio-app").shadowRoot.getElementById(roundingSourceId);
+            let roundingMethod = document.querySelector("gradio-app").shadowRoot.getElementById(roundingMethodId);
+            if (widthSlider && heightSlider && ratioSource && roundingSource && roundingMethod) {
+                observer.disconnect();
+                new AspectRatioSliderController(widthSlider, heightSlider, ratioSource, roundingSource, roundingMethod);
+            }
+        });
+        observer.observe(gradioApp(), { childList: true, subtree: true });
+    }
+}
+document.addEventListener("DOMContentLoaded", () => {
+    //Register mutation observer for self start-up;
+    AspectRatioSliderController.observeStartup("txt2img_width", "txt2img_height", "txt2img_ratio", "setting_aspect_ratios_rounding", "setting_aspect_ratios_rounding_method");
+    AspectRatioSliderController.observeStartup("img2img_width", "img2img_height", "img2img_ratio", "setting_aspect_ratios_rounding", "setting_aspect_ratios_rounding_method");
+});
diff --git a/modules/shared.py b/modules/shared.py
index e324a48a..2983ee44 100644
--- a/modules/shared.py
+++ b/modules/shared.py
@@ -139,6 +139,24 @@ ui_reorder_categories = [
     "scripts",
 ]
 
+aspect_ratio_defaults = [
+    "🔓",
+    "1:1",
+    "3:2",
+    "4:3",
+    "5:4",
+    "16:9",
+    "9:16",
+    "1.85:1",
+    "2.35:1",
+    "2.39:1",
+    "2.40:1",
+    "21:9",
+    "1.375:1",
+    "1.66:1",
+    "1.75:1"
+]
+
 cmd_opts.disable_extension_access = (cmd_opts.share or cmd_opts.listen or cmd_opts.server_name) and not cmd_opts.enable_insecure_extension_access
 
 devices.device, devices.device_interrogate, devices.device_gfpgan, devices.device_esrgan, devices.device_codeformer = \
@@ -459,6 +477,9 @@ options_templates.update(options_section(('ui', "User interface"), {
     "keyedit_precision_extra": OptionInfo(0.05, "Ctrl+up/down precision when editing <extra networks:0.9>", gr.Slider, {"minimum": 0.01, "maximum": 0.2, "step": 0.001}),
     "quicksettings": OptionInfo("sd_model_checkpoint", "Quicksettings list"),
     "ui_reorder": OptionInfo(", ".join(ui_reorder_categories), "txt2img/img2img UI item order"),
+    "aspect_ratios_rounding": OptionInfo(True, "Round aspect ratios for more flexibility?", gr.Checkbox),
+    "aspect_ratios_rounding_method": OptionInfo("Ceiling", "Aspect ratios rounding method", gr.Radio,{"choices": ["Round", "Ceiling", "Floor"]}),
+    "aspect_ratios": OptionInfo(", ".join(aspect_ratio_defaults), "txt2img/img2img aspect ratios"),
     "ui_extra_networks_tab_reorder": OptionInfo("", "Extra networks tab order"),
     "localization": OptionInfo("None", "Localization (requires restart)", gr.Dropdown, lambda: {"choices": ["None"] + list(localization.localizations.keys())}, refresh=lambda: localization.list_localizations(cmd_opts.localizations_dir)),
 }))
diff --git a/modules/ui.py b/modules/ui.py
index 2fdbda42..2fc1fee5 100644
--- a/modules/ui.py
+++ b/modules/ui.py
@@ -424,6 +424,10 @@ def ordered_ui_categories():
         yield category
 
 
+def aspect_ratio_list():
+    return [ratio.strip() for ratio in shared.opts.aspect_ratios.split(",")]
+
+
 def get_value_for_setting(key):
     value = getattr(opts, key)
 
@@ -479,7 +483,9 @@ def create_ui():
                                 width = gr.Slider(minimum=64, maximum=2048, step=8, label="Width", value=512, elem_id="txt2img_width")
                                 height = gr.Slider(minimum=64, maximum=2048, step=8, label="Height", value=512, elem_id="txt2img_height")
 
-                            res_switch_btn = ToolButton(value=switch_values_symbol, elem_id="txt2img_res_switch_btn")
+                            with gr.Column(elem_id="txt2img_size_toolbox", scale=0):
+                                aspect_ratio_dropdown = gr.Dropdown(value="🔓", choices=aspect_ratio_list(), interactive=True, type="value", elem_id="txt2img_ratio", show_label=False, label="Aspect Ratio")
+                                res_switch_btn = ToolButton(value=switch_values_symbol, elem_id="txt2img_res_switch_btn")
                             if opts.dimensions_and_batch_together:
                                 with gr.Column(elem_id="txt2img_column_batch"):
                                     batch_count = gr.Slider(minimum=1, step=1, label='Batch count', value=1, elem_id="txt2img_batch_count")
@@ -757,7 +763,9 @@ def create_ui():
                                 width = gr.Slider(minimum=64, maximum=2048, step=8, label="Width", value=512, elem_id="img2img_width")
                                 height = gr.Slider(minimum=64, maximum=2048, step=8, label="Height", value=512, elem_id="img2img_height")
 
-                            res_switch_btn = ToolButton(value=switch_values_symbol, elem_id="img2img_res_switch_btn")
+                            with gr.Column(elem_id="img2img_size_toolbox", scale=0):
+                                aspect_ratio_dropdown = gr.Dropdown(value="🔓", choices=aspect_ratio_list(), interactive=True, type="value", elem_id="img2img_ratio", show_label=False, label="Aspect Ratio")
+                                res_switch_btn = ToolButton(value=switch_values_symbol, elem_id="img2img_res_switch_btn")
                             if opts.dimensions_and_batch_together:
                                 with gr.Column(elem_id="img2img_column_batch"):
                                     batch_count = gr.Slider(minimum=1, step=1, label='Batch count', value=1, elem_id="img2img_batch_count")
diff --git a/style.css b/style.css
index 05572f66..55baefb7 100644
--- a/style.css
+++ b/style.css
@@ -747,6 +747,52 @@ footer {
     margin-left: 0em;
 }
 
+#txt2img_size_toolbox, #img2img_size_toolbox{
+    min-width: unset !important;
+    gap: 0;
+}
+
+#txt2img_ratio, #img2img_ratio {
+    padding: 0px;
+    min-width: unset;
+    max-width: fit-content;
+}
+#txt2img_ratio select, #img2img_ratio select{
+   -o-appearance: none;
+   -ms-appearance: none;
+   -webkit-appearance: none;
+   -moz-appearance: none;
+   appearance: none;
+   background-image: unset;
+   padding-right: unset;
+   min-width: 40px;
+   max-width: 40px;
+   min-height: 40px;
+   max-height: 40px;
+   line-height: 40px;
+   padding: 0;
+   text-align: center;
+}
+.rounding-badge {
+  display: inline-block;
+  border-radius: 0px;
+  /*background-color: #ccc;*/
+  cursor: pointer;
+  position: absolute;
+  top: -10px;
+  right: -10px;
+  width: 20px;
+  height: 20px;
+  padding: 1px;
+  line-height: 16px;
+  font-size: 14px;
+}
+
+.rounding-badge.active {
+  background-color: #007bff;
+  border-radius: 50%;
+}
+
 .inactive{
     opacity: 0.5;
 }