diff --git a/ulib/mem/swap.c b/ulib/mem/swap.c
deleted file mode 100644
index d11e503..0000000
--- a/ulib/mem/swap.c
+++ /dev/null
@@ -1,15 +0,0 @@
-/*
-** EPITECH PROJECT, 2024
-** CPoolDay07
-** File description:
-** ./u_swap.c
-*/
-
-void u_swap(int *a, int *b)
-{
-    int swap;
-
-    swap = *a;
-    *a = *b;
-    *b = swap;
-}
diff --git a/ulib/mem/swap_uint32.c b/ulib/mem/swap_uint32.c
deleted file mode 100644
index b1c9c8e..0000000
--- a/ulib/mem/swap_uint32.c
+++ /dev/null
@@ -1,14 +0,0 @@
-/*
-** EPITECH PROJECT, 2025
-** __
-** File description:
-** _
-*/
-
-int swap_uint32(int src)
-{
-    return ((src & 0xFF000000) >> 24) |
-    ((src & 0x00FF0000) >> 8) |
-    ((src & 0x0000FF00) << 8) |
-    ((src & 0x000000FF) << 24);
-}
diff --git a/ulib/str/getnbr.c b/ulib/str/getnbr.c
deleted file mode 100644
index a96e25a..0000000
--- a/ulib/str/getnbr.c
+++ /dev/null
@@ -1,52 +0,0 @@
-/*
-** EPITECH PROJECT, 2024
-** B-CPE-100-REN-1-1-cpoolday03-savinien.petitjean
-** File description:
-** u_getnbr.c
-*/
-
-long u_pow(int pow)
-{
-    long r = 1;
-
-    for (long i = 0; i < pow; i++)
-        r *= 10;
-    return r;
-}
-
-int u_atoi(char *str, int size, int negativ, int rsize)
-{
-    long result = 0;
-
-    if (size > 10 || size == 0 || rsize == 0)
-        return 0;
-    for (int i = 0; i < size; i++)
-        result += u_pow(size - i - 1) * (str[i] - '0');
-    if (negativ % 2 != 0)
-        result *= (-1);
-    if (result > 2147483647 || result < -2147483648)
-        return 0;
-    return (int)result;
-}
-
-int u_getnbr(char const *str)
-{
-    int start = 0;
-    int end = 0;
-    int sig = 0;
-    char nstr[1000000];
-    int size = 0;
-    int rsize = 1;
-
-    for (; str[start] < 48 || str[start] > 57; start++);
-    end = start + 1;
-    for (; str[end] >= 48 && str[end] <= 57; end++);
-    for (int i = 0; i < end; i++)
-        if (str[i] == '-')
-            sig++;
-    for (int i = start; i < end; i++) {
-        nstr[size] = str[i];
-        size++;
-    }
-    return u_atoi(nstr, size, sig, rsize);
-}
diff --git a/ulib/str/revstr.c b/ulib/str/revstr.c
deleted file mode 100644
index a950abe..0000000
--- a/ulib/str/revstr.c
+++ /dev/null
@@ -1,21 +0,0 @@
-/*
-** EPITECH PROJECT, 2024
-** B-CPE-100-REN-1-1-cpoolday06-savinien.petitjean
-** File description:
-** Task 3
-*/
-
-#include "u_str.h"
-
-char *u_revstr(char *str)
-{
-    int len = u_strlen(str);
-    char copy;
-
-    for (int i = 0; i < len / 2; i++) {
-        copy = str[i];
-        str[i] = str[len - 1 - i];
-        str[len - 1 - i] = copy;
-    }
-    return (str);
-}
diff --git a/ulib/str/strcat.c b/ulib/str/strcat.c
deleted file mode 100644
index 59e1058..0000000
--- a/ulib/str/strcat.c
+++ /dev/null
@@ -1,33 +0,0 @@
-/*
-** EPITECH PROJECT, 2023
-** CPoolDay07
-** File description:
-** ./u_strcat.c
-*/
-
-#include <stdlib.h>
-
-#include "u_str.h"
-
-char *u_strcat(char *dest, char const *src)
-{
-    int i;
-    int count;
-    char *res;
-
-    i = 0;
-    count = 0;
-    res = malloc(sizeof(*res) * (u_strlen(dest) + u_strlen(src) + 1));
-    if (res == NULL)
-        return NULL;
-    while (dest[i]) {
-        res[i] = dest[i];
-        i++;
-    }
-    while (src[count]) {
-        res[i + count] = src[count];
-        count++;
-    }
-    res[i + count] = '\0';
-    return (res);
-}
diff --git a/ulib/str/strlen.c b/ulib/str/strlen.c
index a7423db..6ce8a58 100644
--- a/ulib/str/strlen.c
+++ b/ulib/str/strlen.c
@@ -17,11 +17,3 @@ int u_strlen(char const *str)
     for (; *p != '\0'; p++);
     return (p - str);
 }
-
-int u_spacelen(char const *str)
-{
-    char const *p = str;
-
-    for (; !isblank(*p) && *p != '\0'; p++);
-    return (p - str);
-}
diff --git a/ulib/str/strncmp.c b/ulib/str/strncmp.c
deleted file mode 100644
index 2f06cde..0000000
--- a/ulib/str/strncmp.c
+++ /dev/null
@@ -1,16 +0,0 @@
-/*
-** EPITECH PROJECT, 2024
-** B-CPE-100-REN-1-1-cpoolday06-savinien.petitjean
-** File description:
-** Task 1
-*/
-
-int u_strncmp(char const *s1, char const *s2, int nb)
-{
-    int i = 0;
-
-    if (nb == 0)
-        return 0;
-    for (; s1[i] == s2[i] && s1[i] != '\0' && i < nb - 1; i++);
-    return s1[i] - s2[i];
-}
diff --git a/ulib/str/strncpy.c b/ulib/str/strncpy.c
deleted file mode 100644
index 4cfc47c..0000000
--- a/ulib/str/strncpy.c
+++ /dev/null
@@ -1,18 +0,0 @@
-/*
-** EPITECH PROJECT, 2024
-** B-CPE-100-REN-1-1-cpoolday06-savinien.petitjean
-** File description:
-** Task 2
-*/
-
-__attribute__((nonnull(1, 2)))
-char *u_strncpy(char *dest, char const *src, int n)
-{
-    int i = 0;
-
-    for (; i < n && src[i] != '\0'; i++)
-        dest[i] = src[i];
-    if (src[i] == '\0' && i < n)
-        dest[i] = '\0';
-    return dest;
-}
diff --git a/ulib/str/strstr.c b/ulib/str/strstr.c
deleted file mode 100644
index 2439486..0000000
--- a/ulib/str/strstr.c
+++ /dev/null
@@ -1,22 +0,0 @@
-/*
-** EPITECH PROJECT, 2024
-** B-CPE-100-REN-1-1-cpoolday06-savinien.petitjean
-** File description:
-** Task 2
-*/
-
-#include <stddef.h>
-
-#include "u_str.h"
-
-char *u_strstr(char *str, char const *to_find)
-{
-    int find_len = u_strlen(to_find);
-
-    if (*to_find == '\0')
-        return str;
-    for (; *str != '\0'; str++)
-        if (!u_strncmp(str, to_find, find_len))
-            return str;
-    return NULL;
-}