A
AiTechWorlds
AiTechWorlds
Visualize a circular linked list whose tail links back to the head — insert, delete, search, and reverse.
def insert(self, v):
n = Node(v)
if self.tail is None:
n.next = n; self.tail = n; return
n.next = self.tail.next # head
self.tail.next = n
self.tail = nA circular linked list links the last node back to the first, so traversal can loop continuously. It's useful for round-robin scheduling and buffers where you cycle through elements repeatedly.
| Insert at head | O(1) |
| Search / access | O(n) |
| Reverse | O(n) |
The Circular Linked List Visualizer lets you insert, delete, search, and reverse a circular linked list and see how the last node links back to the first. Because traversal loops continuously, circular lists are ideal for round-robin scheduling and ring buffers. Insertion at the head or tail is O(1) with a tail pointer; search is O(n).
Insert nodes
Type a value and click Head or Tail; the tail always links back to the head.
Delete or search
Type a value and click Delete to remove it, or Search to highlight its node.
Reverse the list
Click Reverse to reverse the node order while keeping the list circular.
Read the code
See the circular insert code in C++, Java, Python, or JavaScript and copy it.
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Last reviewed on June 14, 2026 by the AiTechWorlds Tools Team. All processing runs locally in your browser.