diff --git a/src/equicordplugins/fileUpload/settings.tsx b/src/equicordplugins/fileUpload/settings.tsx
index 118f5ce2a..371fa6243 100644
--- a/src/equicordplugins/fileUpload/settings.tsx
+++ b/src/equicordplugins/fileUpload/settings.tsx
@@ -5,13 +5,15 @@
  */
 
 import { definePluginSettings } from "@api/Settings";
+import { Button } from "@components/Button";
 import { SettingsSection } from "@components/settings/tabs/plugins/components/Common";
 import { Switch } from "@components/Switch";
 import { useForceUpdater } from "@utils/react";
 import { OptionType } from "@utils/types";
-import { Select, TextInput } from "@webpack/common";
+import { React, Select, showToast, TextArea, TextInput, Toasts } from "@webpack/common";
 
 import { ServiceType } from "./types";
+import { parseShareXConfig } from "./utils/sharex";
 
 const serviceOptions = [
     { label: "Zipline", value: ServiceType.ZIPLINE, default: true },
@@ -20,7 +22,8 @@ const serviceOptions = [
     { label: "S3-Compatible", value: ServiceType.S3 },
     { label: "Catbox.moe", value: ServiceType.CATBOX },
     ...(IS_DISCORD_DESKTOP ? [{ label: "0x0.st", value: ServiceType.ZEROX0 }] : []),
-    { label: "Litterbox", value: ServiceType.LITTERBOX }
+    { label: "Litterbox", value: ServiceType.LITTERBOX },
+    { label: "ShareX Custom Uploader", value: ServiceType.SHAREX }
 ];
 
 const litterboxOptions = [
@@ -134,6 +137,12 @@ export const settings = definePluginSettings({
         default: "",
         hidden: true
     },
+    sharexConfig: {
+        type: OptionType.STRING,
+        description: "ShareX custom uploader JSON",
+        default: "",
+        hidden: true
+    },
     stripQueryParams: {
         type: OptionType.BOOLEAN,
         description: "Strip query params from uploaded URLs",
@@ -182,12 +191,49 @@ function SettingTextInput(props: {
 export function SettingsComponent() {
     const update = useForceUpdater();
     const { store } = settings;
+    const sharexFileInputRef = React.useRef<HTMLInputElement>(null);
     const isNest = store.serviceType === ServiceType.NEST;
     const isEzHost = store.serviceType === ServiceType.EZHOST;
     const isS3 = store.serviceType === ServiceType.S3;
     const isZipline = store.serviceType === ServiceType.ZIPLINE;
     const isCatbox = store.serviceType === ServiceType.CATBOX;
     const isLitterbox = store.serviceType === ServiceType.LITTERBOX;
+    const isShareX = store.serviceType === ServiceType.SHAREX;
+
+    const validateShareXConfig = () => {
+        try {
+            parseShareXConfig(store.sharexConfig || "");
+            showToast("ShareX config is valid", Toasts.Type.SUCCESS);
+        } catch (error) {
+            const message = error instanceof Error ? error.message : "Invalid ShareX config";
+            showToast(message, Toasts.Type.FAILURE);
+        }
+    };
+
+    const triggerShareXFileUpload = () => {
+        sharexFileInputRef.current?.click();
+    };
+
+    const handleShareXFileUpload = (event: React.ChangeEvent<HTMLInputElement>) => {
+        const file = event.target.files?.[0];
+        if (!file) return;
+
+        const reader = new FileReader();
+        reader.onload = (e: ProgressEvent<FileReader>) => {
+            try {
+                const content = String(e.target?.result || "");
+                const parsed = parseShareXConfig(content);
+                store.sharexConfig = JSON.stringify(parsed, null, 2);
+                update();
+                showToast("Imported ShareX config", Toasts.Type.SUCCESS);
+            } catch (error) {
+                const message = error instanceof Error ? error.message : "Failed to import ShareX config";
+                showToast(message, Toasts.Type.FAILURE);
+            }
+        };
+        reader.readAsText(file);
+        event.target.value = "";
+    };
 
     return (
         <>
@@ -342,6 +388,35 @@ export function SettingsComponent() {
                 </SettingsSection>
             )}
 
+            {isShareX && (
+                <>
+                    <SettingsSection
+                        name="ShareX Custom Uploader Config"
+                        description="Paste your ShareX custom uploader JSON (.sxcu/.json). DestinationType must include FileUploader or ImageUploader."
+                    >
+                        <TextArea
+                            value={store.sharexConfig}
+                            rows={10}
+                            placeholder='{"RequestMethod":"POST","RequestURL":"https://example.com/api/upload","Body":"MultipartFormData"}'
+                            onChange={v => store.sharexConfig = v}
+                        />
+                    </SettingsSection>
+                    <SettingsSection name="ShareX Config Actions" description="Import from file or validate pasted config">
+                        <div style={{ display: "flex", gap: 8, flexWrap: "wrap" }}>
+                            <Button size="small" onClick={triggerShareXFileUpload}>Import .sxcu/.json</Button>
+                            <Button size="small" onClick={validateShareXConfig}>Validate</Button>
+                        </div>
+                        <input
+                            ref={sharexFileInputRef}
+                            type="file"
+                            accept=".sxcu,.json,application/json,text/plain"
+                            style={{ display: "none" }}
+                            onChange={handleShareXFileUpload}
+                        />
+                    </SettingsSection>
+                </>
+            )}
+
             <SettingsSection tag="label" name="Strip Query Parameters" description="Strip query parameters from the uploaded file URL" inlineSetting>
                 <Switch
                     checked={store.stripQueryParams}
diff --git a/src/equicordplugins/fileUpload/types.ts b/src/equicordplugins/fileUpload/types.ts
index 464a4763e..5b77b6604 100644
--- a/src/equicordplugins/fileUpload/types.ts
+++ b/src/equicordplugins/fileUpload/types.ts
@@ -11,7 +11,8 @@ export enum ServiceType {
     S3 = "s3",
     CATBOX = "catbox",
     ZEROX0 = "0x0",
-    LITTERBOX = "litterbox"
+    LITTERBOX = "litterbox",
+    SHAREX = "sharex"
 }
 
 export const serviceLabels: Record<ServiceType, string> = {
@@ -21,7 +22,8 @@ export const serviceLabels: Record<ServiceType, string> = {
     [ServiceType.S3]: "S3-Compatible",
     [ServiceType.CATBOX]: "Catbox",
     [ServiceType.ZEROX0]: "0x0.st",
-    [ServiceType.LITTERBOX]: "Litterbox"
+    [ServiceType.LITTERBOX]: "Litterbox",
+    [ServiceType.SHAREX]: "ShareX Custom Uploader"
 };
 
 export interface UploadResponse {
@@ -41,3 +43,17 @@ export interface NativeUploadResult {
     url?: string;
     error?: string;
 }
+
+export interface ShareXUploaderConfig {
+    Version?: string;
+    Name?: string;
+    DestinationType?: string;
+    RequestMethod?: string;
+    RequestURL?: string;
+    Headers?: Record<string, string | number | boolean>;
+    Body?: string;
+    FileFormName?: string;
+    Arguments?: Record<string, string | number | boolean>;
+    URL?: string;
+    ErrorMessage?: string;
+}
diff --git a/src/equicordplugins/fileUpload/utils/sharex.ts b/src/equicordplugins/fileUpload/utils/sharex.ts
new file mode 100644
index 000000000..41d5d634f
--- /dev/null
+++ b/src/equicordplugins/fileUpload/utils/sharex.ts
@@ -0,0 +1,92 @@
+/*
+ * Vencord, a Discord client mod
+ * Copyright (c) 2025 Vendicated and contributors
+ * SPDX-License-Identifier: GPL-3.0-or-later
+ */
+
+import { ShareXUploaderConfig } from "../types";
+
+const JSON_TEMPLATE_REGEX = /\$json:([^$]+)\$|\{json:([^}]+)\}/g;
+const RESPONSE_TEMPLATE_REGEX = /\$response\$|\{response\}/g;
+
+function parseDestinationTypes(destinationType?: string): string[] {
+    if (!destinationType) return [];
+
+    return destinationType
+        .split(",")
+        .map(type => type.trim())
+        .filter(Boolean);
+}
+
+function getNestedValue(data: unknown, path: string): unknown {
+    const normalizedPath = path.replace(/\[(\d+)\]/g, ".$1");
+    const segments = normalizedPath.split(".").filter(Boolean);
+
+    let current: unknown = data;
+    for (const segment of segments) {
+        if (!current || typeof current !== "object" || !(segment in current)) {
+            return undefined;
+        }
+
+        current = (current as Record<string, unknown>)[segment];
+    }
+
+    return current;
+}
+
+export function parseShareXConfig(configText: string): ShareXUploaderConfig {
+    let parsed: unknown;
+    const normalizedConfigText = configText.replace(/^\uFEFF/, "").trim();
+
+    try {
+        parsed = JSON.parse(normalizedConfigText);
+    } catch {
+        throw new Error("Invalid ShareX JSON");
+    }
+
+    if (!parsed || typeof parsed !== "object" || Array.isArray(parsed)) {
+        throw new Error("ShareX config must be a JSON object");
+    }
+
+    const config = parsed as ShareXUploaderConfig;
+
+    if (!config.RequestURL || typeof config.RequestURL !== "string") {
+        throw new Error("ShareX RequestURL is required");
+    }
+
+    if (!isSupportedShareXDestination(config)) {
+        throw new Error("ShareX DestinationType must include FileUploader or ImageUploader");
+    }
+
+    return config;
+}
+
+export function isSupportedShareXDestination(config: ShareXUploaderConfig): boolean {
+    const destinationTypes = parseDestinationTypes(config.DestinationType);
+
+    if (destinationTypes.length === 0) {
+        return true;
+    }
+
+    return destinationTypes.includes("FileUploader") || destinationTypes.includes("ImageUploader");
+}
+
+export function resolveShareXTemplate(
+    template: string | undefined,
+    responseText: string,
+    responseJson: unknown
+): string | undefined {
+    if (!template) return undefined;
+
+    let output = template.trim();
+    if (!output) return undefined;
+
+    output = output.replace(RESPONSE_TEMPLATE_REGEX, responseText);
+    output = output.replace(JSON_TEMPLATE_REGEX, (_, pathA: string, pathB: string) => {
+        const path = pathA || pathB;
+        const value = getNestedValue(responseJson, path);
+        return value == null ? "" : String(value);
+    });
+
+    return output;
+}
diff --git a/src/equicordplugins/fileUpload/utils/upload.ts b/src/equicordplugins/fileUpload/utils/upload.ts
index f23b66e54..32dbab034 100644
--- a/src/equicordplugins/fileUpload/utils/upload.ts
+++ b/src/equicordplugins/fileUpload/utils/upload.ts
@@ -5,7 +5,7 @@
  */
 
 import { settings } from "@equicordplugins/fileUpload/settings";
-import { ServiceType, UploadResponse } from "@equicordplugins/fileUpload/types";
+import { ServiceType, ShareXUploaderConfig, UploadResponse } from "@equicordplugins/fileUpload/types";
 import { copyToClipboard } from "@utils/clipboard";
 import { PluginNative } from "@utils/types";
 import { showToast, Toasts } from "@webpack/common";
@@ -13,6 +13,7 @@ import { showToast, Toasts } from "@webpack/common";
 import { convertApngToGif } from "./apngToGif";
 import { getExtensionFromBytes, getExtensionFromMime, getMimeFromExtension, getUrlExtension } from "./getMediaUrl";
 import { isS3Configured, uploadToS3 } from "./s3";
+import { parseShareXConfig, resolveShareXTemplate } from "./sharex";
 
 const Native = IS_DISCORD_DESKTOP
     ? VencordNative.pluginHelpers.FileUpload as PluginNative<typeof import("../native")>
@@ -22,6 +23,106 @@ const CORS_PROXY = "https://cors.keiran0.workers.dev"; // im hosting this on clo
 
 let isUploading = false;
 
+function resolveShareXRequestValue(value: string | number | boolean, filename: string): string {
+    return String(value)
+        .replace(/\$filename\$/g, filename)
+        .replace(/\{filename\}/g, filename);
+}
+
+function parseShareXConfigFromSettings(): ShareXUploaderConfig {
+    const configText = settings.store.sharexConfig || "";
+    if (!configText.trim()) {
+        throw new Error("ShareX config is required");
+    }
+
+    return parseShareXConfig(configText);
+}
+
+async function uploadToShareX(fileBlob: Blob, filename: string): Promise<string> {
+    const config = parseShareXConfigFromSettings();
+    const method = (config.RequestMethod || "POST").toUpperCase();
+    const requestUrl = config.RequestURL!.trim();
+    const bodyType = (config.Body || "MultipartFormData").toLowerCase();
+
+    const headers = new Headers();
+    for (const [key, value] of Object.entries(config.Headers || {})) {
+        headers.set(key, resolveShareXRequestValue(value, filename));
+    }
+
+    const buildArguments = () => {
+        const args: Record<string, string> = {};
+        for (const [key, value] of Object.entries(config.Arguments || {})) {
+            args[key] = resolveShareXRequestValue(value, filename);
+        }
+        return args;
+    };
+
+    let body: BodyInit;
+
+    if (bodyType === "multipartformdata" || bodyType === "formdata") {
+        headers.delete("content-type");
+
+        const formData = new FormData();
+        const fileField = config.FileFormName || "file";
+        formData.append(fileField, fileBlob, filename);
+
+        const args = buildArguments();
+        for (const [key, value] of Object.entries(args)) {
+            formData.append(key, value);
+        }
+
+        body = formData;
+    } else if (bodyType === "binary") {
+        body = fileBlob;
+    } else if (bodyType === "json") {
+        if (!headers.has("content-type")) {
+            headers.set("content-type", "application/json");
+        }
+
+        const payload = buildArguments();
+        body = JSON.stringify(payload);
+    } else {
+        throw new Error(`Unsupported ShareX Body type: ${config.Body || "unknown"}`);
+    }
+
+    let response: Response;
+    try {
+        response = await fetch(requestUrl, { method, headers, body });
+    } catch (error) {
+        if (Native) {
+            throw error;
+        }
+
+        const proxiedUrl = `${CORS_PROXY}?url=${encodeURIComponent(requestUrl)}`;
+        response = await fetch(proxiedUrl, { method, headers, body });
+    }
+
+    const responseText = await response.text();
+    let responseJson: unknown = null;
+    try {
+        responseJson = responseText ? JSON.parse(responseText) : null;
+    } catch {
+        responseJson = null;
+    }
+
+    if (!response.ok) {
+        const configuredError = resolveShareXTemplate(config.ErrorMessage, responseText, responseJson);
+        throw new Error(configuredError || `Upload failed: ${response.status} ${response.statusText}`);
+    }
+
+    const configuredUrl = resolveShareXTemplate(config.URL, responseText, responseJson)?.trim();
+    const fallbackUrl = typeof responseJson === "object" && responseJson && "url" in responseJson
+        ? String((responseJson as Record<string, unknown>).url || "")
+        : responseText.trim();
+
+    const resultUrl = configuredUrl || fallbackUrl;
+    if (!resultUrl) {
+        throw new Error("No URL returned from ShareX uploader");
+    }
+
+    return resultUrl;
+}
+
 async function uploadToZipline(fileBlob: Blob, filename: string): Promise<string> {
     const { serviceUrl, ziplineToken, folderId } = settings.store;
 
@@ -141,6 +242,13 @@ export function isConfigured(): boolean {
             return Boolean(Native);
         case ServiceType.LITTERBOX:
             return true;
+        case ServiceType.SHAREX:
+            try {
+                parseShareXConfigFromSettings();
+                return true;
+            } catch {
+                return false;
+            }
         case ServiceType.ZIPLINE:
         default:
             return Boolean(serviceUrl && ziplineToken);
@@ -348,6 +456,9 @@ export async function uploadFile(url: string): Promise<void> {
             case ServiceType.LITTERBOX:
                 uploadedUrl = await uploadToLitterbox(typedBlob, filename);
                 break;
+            case ServiceType.SHAREX:
+                uploadedUrl = await uploadToShareX(typedBlob, filename);
+                break;
             default:
                 throw new Error("Unknown service type");
         }