Python Code to Flowchart Converter
Paste a Python program and get the flowchart your assignment or lab record asks for. Loops become decision boxes with a loop-back arrow, if/elif/else becomes a chain of Yes / No decisions, and input() and print() become input/output boxes. Press ▶ Explain to watch the code run line by line.
- for loops over range() drawn as counter + condition + update
- while loops, break and continue drawn as real paths
- if / elif / else as a chain of decisions
- input() and print() as input/output parallelograms
- Animated dry run: the current line, its box and every variable
- Export PNG, PDF, PowerPoint or the trace table as CSV
How it works
- Paste your Python code and a sample input
- The AI draws the flowchart
- Press ▶ Explain to watch it run
- Export it or copy the trace table
Try it with
- n = int(input()) fact = 1 for i in range(1, n + 1): fact = fact * i print(fact)
- n = int(input()) original, rev = n, 0 while n > 0: rev = rev * 10 + n % 10 n = n // 10 print("palindrome" if original == rev else "not palindrome")
- marks = int(input()) if marks >= 90: print("A") elif marks >= 75: print("B") elif marks >= 50: print("C") else: print("Fail")
Frequently asked questions
Is it free?
Yes. Drawing by hand is always free and every account includes free AI credits. AI Flowchart Pro adds unlimited AI generation and every diagram type.
How is a Python for loop shown in a flowchart?
As three parts: a box that sets the counter (i = 1), a decision that checks it (i <= n?) and a box that moves it on (i = i + 1), with an arrow back to the decision. for i in range(1, n + 1) is drawn exactly that way, so it matches what textbooks expect.
Does it handle functions and lists?
Yes for short programs. A function call is shown as a process box (or a predefined-process box), and list operations become ordinary steps. It works best on lab-sized programs up to about 80 lines.
Does it run my Python code?
No. The AI reads the program and works out the dry run the way you would on paper, so nothing is executed on a server.
Can I export it?
Yes — PNG, SVG, PDF, PowerPoint with an editable slide, Mermaid code and draw.io. You can also share a live link or present it full screen.
Ready-made examples, explained
- Linear search flowchart, pseudocode and trace table
- Binary search flowchart, pseudocode and trace table
- Bubble sort flowchart, pseudocode and trace table
- Password check flowchart with 3 attempts
- Number guessing game flowchart and pseudocode
- Input validation flowchart (range check)