diff --git a/package-lock.json b/package-lock.json
index c9dc312..fd0b735 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -2778,6 +2778,22 @@
         "mime-types": "^2.1.12"
       }
     },
+    "formdata-node": {
+      "version": "4.2.2",
+      "resolved": "https://registry.npmjs.org/formdata-node/-/formdata-node-4.2.2.tgz",
+      "integrity": "sha512-rDQeb6tk/Noep0MXvKhctr5x3gSpeJ+e5gYLFGM4jAt0MilYQLDR1jq61u60Piig3/EtxB/xBZ8WLTmunE5BoA==",
+      "requires": {
+        "node-domexception": "1.0.0",
+        "web-streams-polyfill": "4.0.0-beta.1"
+      },
+      "dependencies": {
+        "web-streams-polyfill": {
+          "version": "4.0.0-beta.1",
+          "resolved": "https://registry.npmjs.org/web-streams-polyfill/-/web-streams-polyfill-4.0.0-beta.1.tgz",
+          "integrity": "sha512-3ux37gEX670UUphBF9AMCq8XM6iQ8Ac6A+DSRRjDoRBm1ufCkaCDdNVbaqq60PsEkdNlLKrGtv/YBP4EJXqNtQ=="
+        }
+      }
+    },
     "fs.realpath": {
       "version": "1.0.0",
       "resolved": "https://registry.npmjs.org/fs.realpath/-/fs.realpath-1.0.0.tgz",
@@ -3923,6 +3939,11 @@
       "integrity": "sha1-Sr6/7tdUHywnrPspvbvRXI1bpPc=",
       "dev": true
     },
+    "node-domexception": {
+      "version": "1.0.0",
+      "resolved": "https://registry.npmjs.org/node-domexception/-/node-domexception-1.0.0.tgz",
+      "integrity": "sha512-/jKZoMpw0F8GRwl4/eLROPA3cfcXtLApP0QzLmUT/HuPCZWyB7IY9ZrMeKw2O/nFIqPQB3PVM9aYm0F312AXDQ=="
+    },
     "node-fetch": {
       "version": "3.0.0",
       "resolved": "https://registry.npmjs.org/node-fetch/-/node-fetch-3.0.0.tgz",
diff --git a/package.json b/package.json
index d145c7c..4993f89 100644
--- a/package.json
+++ b/package.json
@@ -41,6 +41,7 @@
   "dependencies": {
     "@actions/core": "^1.5.0",
     "fast-glob": "^3.2.7",
+    "formdata-node": "^4.2.2",
     "node-fetch": "^3.0.0"
   }
 }
diff --git a/src/utils/curseforge-utils.ts b/src/utils/curseforge-utils.ts
new file mode 100644
index 0000000..019f2cf
--- /dev/null
+++ b/src/utils/curseforge-utils.ts
@@ -0,0 +1,104 @@
+import fetch from "node-fetch";
+import { FormData } from "formdata-node";
+import { fileFromPath } from "formdata-node/file-from-path";
+import { File } from "../utils/file-utils";
+import { findVersionByName } from "./minecraft-utils";
+
+const baseUrl = "https://minecraft.curseforge.com/api";
+
+interface CurseForgeVersion {
+    id: number;
+    gameVersionTypeID: number;
+    name: string;
+    slug: string;
+}
+
+interface CurseForgeVersions {
+    gameVersions: CurseForgeVersion[];
+    loaders: CurseForgeVersion[];
+    java: CurseForgeVersion[];
+}
+
+
+let cachedCurseForgeVersions: CurseForgeVersions = null;
+async function getCurseForgeVersions(token: string): Promise<CurseForgeVersions> {
+    if (!cachedCurseForgeVersions) {
+        cachedCurseForgeVersions = await loadCurseForgeVersions(token);
+    }
+    return cachedCurseForgeVersions;
+}
+
+async function loadCurseForgeVersions(token: string): Promise<CurseForgeVersions> {
+    const versionTypes = <{ id: number, slug: string }[]>await (await fetch(`${baseUrl}/game/version-types?token=${token}`)).json();
+    const javaVersionTypes = versionTypes.filter(x => x.slug.startsWith("java")).map(x => x.id);
+    const minecraftVersionTypes = versionTypes.filter(x => x.slug.startsWith("minecraft")).map(x => x.id);
+    const loaderVersionTypes = versionTypes.filter(x => x.slug.startsWith("modloader")).map(x => x.id);
+
+    const versions = <CurseForgeVersion[]>await (await fetch(`${baseUrl}/game/versions?token=${token}`)).json();
+    return versions.reduce((container, version) => {
+        if (javaVersionTypes.includes(version.gameVersionTypeID)) {
+            container.java.push(version);
+        } else if (minecraftVersionTypes.includes(version.gameVersionTypeID)) {
+            container.gameVersions.push(version);
+        } else if (loaderVersionTypes.includes(version.gameVersionTypeID)) {
+            container.loaders.push(version);
+        }
+        return container;
+    }, { gameVersions: new Array<CurseForgeVersion>(), loaders: new Array<CurseForgeVersion>(), java: new Array<CurseForgeVersion>() });
+}
+
+export async function unifyGameVersion(gameVersion: string): Promise<string> {
+    gameVersion = gameVersion.trim();
+    const minecraftVersion = await findVersionByName(gameVersion);
+    if (minecraftVersion) {
+        return `${minecraftVersion.name}${(minecraftVersion.isSnapshot ? "-Snapshot" : "")}`;
+    }
+    return gameVersion.replace(/([^\w]|_)+/g, ".").replace(/[.-][a-zA-Z]\w+$/, "-Snapshot");
+}
+
+export function unifyJava(java: string): string {
+    java = java.trim();
+    const match = java.match(/(?:\d+\D)?(\d+)$/);
+    if (match && match.length === 2) {
+        return `Java ${match[1]}`;
+    }
+    return java;
+}
+
+async function addVersionIntersectionToSet(curseForgeVersions: CurseForgeVersion[], versions: string[], unify: (v: string) => string | Promise<string>, comparer: (cfv: CurseForgeVersion, v: string) => boolean, intersection: Set<number> ) {
+    for (const version of versions) {
+        const unifiedVersion = await unify(version);
+        const curseForgeVersion = curseForgeVersions.find(x => comparer(x, unifiedVersion));
+        if (curseForgeVersion) {
+            intersection.add(curseForgeVersion.id);
+        }
+    }
+}
+
+export async function convertToCurseForgeVersions(gameVersions: string[], loaders: string[], java: string[], token: string): Promise<number[]> {
+    const versions = new Set<number>();
+    const curseForgeVersions = await getCurseForgeVersions(token);
+
+    await addVersionIntersectionToSet(curseForgeVersions.gameVersions, gameVersions, unifyGameVersion, (cfv, v) => cfv.name === v, versions);
+    await addVersionIntersectionToSet(curseForgeVersions.loaders, loaders, x => x.trim().toLowerCase(), (cfv, v) => cfv.slug === v, versions);
+    await addVersionIntersectionToSet(curseForgeVersions.java, java, unifyJava, (cfv, v) => cfv.name === v, versions);
+
+    return [...versions];
+}
+
+export async function uploadFile(id: string, data: Record<string, any>, file: File, token: string): Promise<number> {
+    const form = new FormData();
+    form.append("file", await fileFromPath(file.path), file.name);
+    form.append("metadata", JSON.stringify(data));
+
+    const response = await fetch(`${baseUrl}/projects/${id}/upload-file?token=${token}`, {
+        method: "POST",
+        body: <any>form
+    });
+
+    if (!response.ok) {
+        throw new Error(`Failed to upload file: ${response.status} (${response.statusText})`)
+    }
+
+    return (<{ id: number }>await response.json()).id;
+}