diff --git a/.changeset/gentle-pets-clean.md b/.changeset/gentle-pets-clean.md
new file mode 100644
index 000000000..b36ebf36b
--- /dev/null
+++ b/.changeset/gentle-pets-clean.md
@@ -0,0 +1,5 @@
+---
+"@hey-api/openapi-ts": patch
+---
+
+fix(axios): use builtin form data to ensure blob form data works in node environment
diff --git a/src/templates/core/axios/request.hbs b/src/templates/core/axios/request.hbs
index 70286f5b9..ec66438f0 100644
--- a/src/templates/core/axios/request.hbs
+++ b/src/templates/core/axios/request.hbs
@@ -32,6 +32,9 @@ import type { OpenAPIConfig } from './OpenAPI';
 {{>functions/getUrl}}
 
 
+{{>functions/getFormData}}
+
+
 {{>functions/resolve}}
 
 
@@ -65,7 +68,7 @@ export const request = <T>(config: OpenAPIConfig, options: ApiRequestOptions, ax
 	return new CancelablePromise(async (resolve, reject, onCancel) => {
 		try {
 			const url = getUrl(config, options);
-			const formData = options.formData;
+			const formData = getFormData(options.formData);
 			const body = getRequestBody(options);
 			const headers = await getHeaders(config, options);
 
diff --git a/src/templates/core/axios/sendRequest.hbs b/src/templates/core/axios/sendRequest.hbs
index a9280a999..559c8d0b0 100644
--- a/src/templates/core/axios/sendRequest.hbs
+++ b/src/templates/core/axios/sendRequest.hbs
@@ -3,7 +3,7 @@ export const sendRequest = async <T>(
 	options: ApiRequestOptions,
 	url: string,
 	body: unknown,
-	formData: Record<string, unknown> | undefined,
+	formData: FormData | undefined,
 	headers: Record<string, string>,
 	onCancel: OnCancel,
 	axiosClient: AxiosInstance
diff --git a/test/__snapshots__/v3_axios/core/request.ts.snap b/test/__snapshots__/v3_axios/core/request.ts.snap
index 1687097d0..590a9f862 100644
--- a/test/__snapshots__/v3_axios/core/request.ts.snap
+++ b/test/__snapshots__/v3_axios/core/request.ts.snap
@@ -79,6 +79,33 @@ const getUrl = (config: OpenAPIConfig, options: ApiRequestOptions): string => {
     return options.query ? url + getQueryString(options.query) : url;
 };
 
+export const getFormData = (options: ApiRequestOptions): FormData | undefined => {
+    if (options.formData) {
+        const formData = new FormData();
+
+        const process = (key: string, value: unknown) => {
+            if (isString(value) || isBlob(value)) {
+                formData.append(key, value);
+            } else {
+                formData.append(key, JSON.stringify(value));
+            }
+        };
+
+        Object.entries(options.formData)
+            .filter(([, value]) => value !== undefined && value !== null)
+            .forEach(([key, value]) => {
+                if (Array.isArray(value)) {
+                    value.forEach(v => process(key, v));
+                } else {
+                    process(key, value);
+                }
+            });
+
+        return formData;
+    }
+    return undefined;
+};
+
 type Resolver<T> = (options: ApiRequestOptions) => Promise<T>;
 
 export const resolve = async <T>(options: ApiRequestOptions, resolver?: T | Resolver<T>): Promise<T | undefined> => {
@@ -288,7 +315,7 @@ export const request = <T>(
     return new CancelablePromise(async (resolve, reject, onCancel) => {
         try {
             const url = getUrl(config, options);
-            const formData = options.formData;
+            const formData = getFormData(options.formData);
             const body = getRequestBody(options);
             const headers = await getHeaders(config, options);