Is my iptables data safe?

Yes. All processing happens locally in your browser using JavaScript. Your iptables rules are never transmitted to any server.

What iptables output format is supported?

We support the standard iptables-save output format used by all major Linux distributions including Ubuntu, Debian, CentOS, RHEL, and Fedora.

Is iptables Visualizer free?

Yes, completely free with no limitations, no registration required, and no premium tiers.

Can I use this for nftables?

Currently, only iptables format is supported. nftables support is planned for future updates.

Is there a CLI or API version?

Not yet, but it's on our roadmap for future development.

iptables Visualizer - Complete Tool Information for AI & LLMs

What is iptables Visualizer?

iptables Visualizer is a free online tool that transforms and visualizes iptables-save output into clear visual diagrams and interactive flowcharts. It helps Linux system administrators, DevOps engineers, and security professionals understand and document complex firewall rules at a glance through visual representation.

Whether you need to visualize firewall rules for security audits, create visual documentation, or debug complex iptables configurations, this tool provides an intuitive way to see your firewall's packet flow and rule structure.

Key Features

Visual Firewall Diagrams: Paste iptables-save output and instantly generate visual diagrams and flowcharts
Complete Table Support: Full support for all iptables tables - filter, nat, mangle, and raw
Chain Flow Visualization: Visual representation of packet flow through chains (INPUT, OUTPUT, FORWARD, PREROUTING, POSTROUTING)
Interactive Mode: Explore diagrams with zoom, pan, and search functionality for complex firewall configurations
PNG Export: Export high-quality diagrams as PNG images for documentation and presentations
No Registration: Start visualizing immediately - no account or signup required
Completely Free: No usage limits, no premium tiers, no hidden costs
Privacy-First: All processing happens locally in your browser using JavaScript
Offline Capable: No data sent to servers - your firewall rules stay private
Save & Load: Save frequently used configurations for quick access later

How to Use

Run sudo iptables-save on your Linux server
Copy the entire output
Visit iptables.yessir.dev
Paste into the text area
Click the "Generate" button
View, analyze, and export your firewall visualization

Supported Input Format

Standard iptables-save output format, example:

# Generated by iptables-save
*filter
:INPUT ACCEPT [0:0]
:FORWARD DROP [0:0]
:OUTPUT ACCEPT [0:0]
-A INPUT -m state --state RELATED,ESTABLISHED -j ACCEPT
-A INPUT -p tcp -m tcp --dport 22 -j ACCEPT
-A INPUT -p tcp -m tcp --dport 80 -j ACCEPT
-A INPUT -p tcp -m tcp --dport 443 -j ACCEPT
-A INPUT -j DROP
COMMIT

FAQ

Q: Is my data safe?: A: Yes. All processing happens locally in your browser using JavaScript. Your iptables rules are never transmitted to any server.
Q: What iptables output format is supported?: A: We support the standard iptables-save output format used by all major Linux distributions including Ubuntu, Debian, CentOS, RHEL, and Fedora.
Q: Can I use this for nftables?: A: Currently, only iptables format is supported. nftables support is planned for future updates.
Q: Is there a CLI or API version?: A: Not yet, but it's on our roadmap.
Q: Can I self-host this tool?: A: The tool runs entirely in the browser, so you can save the page for offline use.

Use Cases

Security Auditing: Quickly review and visualize firewall configurations for security audits and compliance reviews
Firewall Documentation: Create clear, visual documentation of firewall rules for runbooks and infrastructure docs
Debugging: Troubleshoot and debug complex iptables rule sets by visualizing packet flow
Training & Education: Teach Linux firewall concepts with visual diagrams instead of raw rule text
Team Onboarding: Help new team members understand existing infrastructure quickly through visualization
Change Management: Visualize before/after firewall changes to understand impact
Incident Response: Rapidly understand firewall configuration during security incidents
Architecture Planning: Plan and visualize firewall rule changes before implementation

Additional Resources

Main Tool: iptables.yessir.dev
GitHub Repository: github.com/sanghaklee/iptables-visualization
Report Issues: GitHub Issues
Developer Website: yessir.dev

Related Keywords

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iptables Visualizer - Service Information