diff --git a/src/tools/SetOptional.ts b/src/tools/SetOptional.ts
deleted file mode 100644
index d202b335..00000000
--- a/src/tools/SetOptional.ts
+++ /dev/null
@@ -1 +0,0 @@
-export type SetOptional<T extends Record<string, unknown>, K extends keyof T> = Omit<T, K> & Partial<Record<K, T[K]>>;
diff --git a/src/tools/allPropertiesValuesToUndefined.ts b/src/tools/allPropertiesValuesToUndefined.ts
deleted file mode 100644
index c141ccd5..00000000
--- a/src/tools/allPropertiesValuesToUndefined.ts
+++ /dev/null
@@ -1,5 +0,0 @@
-import "minimal-polyfills/Object.fromEntries";
-
-export function allPropertiesValuesToUndefined<T extends Record<string, unknown>>(obj: T): Record<keyof T, undefined> {
-    return Object.fromEntries(Object.entries(obj).map(([key]) => [key, undefined])) as any;
-}
diff --git a/src/tools/useCallbackFactory.ts b/src/tools/useCallbackFactory.ts
deleted file mode 100644
index 2529a49e..00000000
--- a/src/tools/useCallbackFactory.ts
+++ /dev/null
@@ -1,45 +0,0 @@
-import { useRef, useState } from "react";
-import { id } from "tsafe/id";
-import { memoize } from "./memoize";
-
-export type CallbackFactory<FactoryArgs extends unknown[], Args extends unknown[], R> = (...factoryArgs: FactoryArgs) => (...args: Args) => R;
-
-/**
- * https://docs.powerhooks.dev/api-reference/usecallbackfactory
- *
- *  const callbackFactory= useCallbackFactory(
- *      ([key]: [string], [params]: [{ foo: number; }]) => {
- *          ...
- *      },
- *      []
- *  );
- *
- * WARNING: Factory args should not be of variable length.
- *
- */
-export function useCallbackFactory<FactoryArgs extends (string | number | boolean)[], Args extends unknown[], R = void>(
-    callback: (...callbackArgs: [FactoryArgs, Args]) => R
-): CallbackFactory<FactoryArgs, Args, R> {
-    type Out = CallbackFactory<FactoryArgs, Args, R>;
-
-    const callbackRef = useRef<typeof callback>(callback);
-
-    callbackRef.current = callback;
-
-    const memoizedRef = useRef<Out | undefined>(undefined);
-
-    return useState(() =>
-        id<Out>((...factoryArgs) => {
-            if (memoizedRef.current === undefined) {
-                memoizedRef.current = memoize(
-                    (...factoryArgs: FactoryArgs) =>
-                        (...args: Args) =>
-                            callbackRef.current(factoryArgs, args),
-                    { "argsLength": factoryArgs.length }
-                );
-            }
-
-            return memoizedRef.current(...factoryArgs);
-        })
-    )[0];
-}
diff --git a/src/tools/useCssAndCx.ts b/src/tools/useCssAndCx.ts
deleted file mode 100644
index c786ecfc..00000000
--- a/src/tools/useCssAndCx.ts
+++ /dev/null
@@ -1,12 +0,0 @@
-import { clsx as cx } from "./clsx";
-
-/**
- * @deprecated: Use clsx instead.
- * import { clsx } from "keycloakify/lib/tools/clsx";
- * You can use clsx as cx.
- * If you where using the css() function you can import
- * it from @emotion/css: https://emotion.sh/docs/@emotion/css
- */
-export function useCssAndCx() {
-    return { cx };
-}