CodeSamjho

Interactive execution visualizer for code step-by-step in six languages

Coding & Development Coding AssistantsFreemium

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$49Starting price

1.8KMonthly visits

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About CodeSamjho

CodeSamjho is an interactive tool that visualizes code execution line by line across multiple programming languages. It displays live variables, call stacks, and data structures as each instruction runs, making algorithm behavior visible in real time. The platform supports Python, JavaScript, Java, C++, C, and SQL, with diagrams that match the execution flow. Users can step forward and backward through execution traces, observe state changes, and compare sorting or searching algorithms visually. Curated problem sheets are available without an account, while custom code execution requires signing in. The tool also includes an AI debugging assistant that analyzes execution history to explain bugs and suggest fixes.

Key features

Live variable tracking
Call stack visualization
Data structure motion display
Step-by-step execution playback
Multi-language support
AI debugging assistant
Curated problem sheets
Custom code execution

Use cases

Learning data structures and algorithms
Debugging code execution in real time
Preparing for technical interviews

Pros

Supports six programming languages
Real-time visualization of variables and data structures
Step-by-step execution with forward and backward playback
Curated problem sheets available without an account
AI debugging assistant for bug explanation and suggested fixes

Cons

Custom code runs require signing in
Pricing plans limit custom runs per period
No mention of mobile or offline functionality

Frequently asked questions about CodeSamjho

What is CodeSamjho?

CodeSamjho is an interactive execution visualizer for Data Structures and Algorithms. It runs code step-by-step, showing how variables, the call stack, and data structures change in real time.

Which programming languages does CodeSamjho support?

CodeSamjho supports Python, JavaScript, Java, C++, C, and SQL. Users can execute, provide custom inputs, and trace flowcharts across all these languages.

Is CodeSamjho free to use?

Yes. Curated visualization sheets are free with no account required. Signing in unlocks a free quota of custom code runs.

How does the AI debugging assistant work?

When code fails or loops indefinitely, the assistant analyzes the execution history, explains the bug, and offers a suggested autofix that can be applied in one click. The suggestion is not automatically re-verified by a second run.

Can I use CodeSamjho without creating an account?

Yes. Users can start with free curated problem sheets without an account. Custom code execution requires signing in.

How do I get started with CodeSamjho?

Start by trying a free curated sheet or paste your own code to visualize execution line by line. Sign in to unlock custom runs and additional features.