diff --git a/include/tlibc/algorithms.h b/include/tlibc/algorithms.h
new file mode 100644
index 0000000..709d382
--- /dev/null
+++ b/include/tlibc/algorithms.h
@@ -0,0 +1,31 @@
+#pragma once
+#include "std.h"
+
+/// USAGE insertionSort(list.data, list.len, .id)
+#define insertionSort_inline(arr, n, field) \
+    for(i32 i = 1, j; i < n; i++) { \
+        j = i; \
+        while( j > 0 && arr[j - 1]##field > arr[i]##field){\
+            arr[j] = arr[j - 1]; \
+            j--; \
+        } \
+        arr[j] = arr[i]; \
+    } \
+
+#define binarySearch_inline(arr, n, key, field, out_index) {\
+    i32 low = 0; \
+    i32 high = n - 1; \
+    while (low <= high) { \
+        i32 mid = low + (high - low) / 2; \
+        if (arr[mid]##field == key) { \
+            out_index = mid; \
+            break; \
+        } \
+        /* choose left or right half */ \
+        if (arr[mid]##field < key) \
+            low = mid + 1; \
+        else high = mid - 1; \
+    } \
+    out_index = -1; \
+}
+