Deque Visualizer — Push/Pop From Both Ends
Learn a double-ended queue by pushing/popping from both front and rear with clear, step-by-step explanations.
Interactive learning • Step-by-step operations • Visual explanations
Controls
Pick an operation, then execute and step through.
Deque (front ↔ rear)
Empty deque
Code-like representation
Connect the visual model to what you’d write in code.
deque: []
Step-by-step explanation
Watch intermediate reasoning, not just the final result.
Choose an operation and click Execute to generate steps.
Teaching notes
Short, beginner-friendly reminders.
Learning mode
A deque supports insertion/removal at both the front and the back.
It combines ideas from both queues (FIFO) and stacks (LIFO), depending on which end you use.
Operation history
Track what you tried and what happened.
No operations yet.
Data Structures Visualizers
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Processed Locally
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Related Tools
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Priority Queue Visualizer — Serve By Priority
Learn how priority queues serve next items by priority (min/max) with history and explanations.