Software Alternatives & Startups

iftop VS Cert Decoder

Compare iftop VS Cert Decoder and see what are their differences

iftop logo iftop

iftop does for network usage what top(1) does for CPU usage.

Cert Decoder logo Cert Decoder

Decode and verify SSL/TLS certificates online. Extract X.509 details including issuer, validity, SAN, and fingerprint. Fast, secure, and browser-based.
  • iftop Landing page
    Landing page //
    2019-08-25
  • Cert Decoder
    Image date //
    2025-03-22

Cert Decoder is a free online tool that helps you decode X.509 SSL/TLS certificates in PEM format. It instantly shows important information like the issuer, expiry date, SAN entries, and fingerprint. All data is processed locally in your browser, so nothing is ever sent or stored elsewhere.

iftop features and specs

  • Real-time Monitoring
    iftop provides real-time bandwidth monitoring, enabling users to quickly identify network usage and any potential issues.
  • User-Friendly Interface
    The tool features a simple, text-based user interface that is easy to navigate, making it accessible for users with varying levels of experience.
  • Detailed Traffic Insight
    iftop offers detailed information about network traffic, including source and destination IP addresses, service ports, and data flow rates.
  • Lightweight
    Being a command-line tool, iftop is lightweight in nature and does not consume significant system resources.
  • Open Source
    iftop is open source, allowing users to access, modify, and distribute the software freely, which can lead to community-driven improvements.

Possible disadvantages of iftop

  • Lacks Historical Data
    iftop does not have the capability to store historical data, making it unsuitable for long-term network monitoring and analysis.
  • Limited Features
    Compared to other network monitoring tools, iftop has a limited feature set and may not meet the requirements of advanced network analysis needs.
  • Requires Root Permissions
    The tool requires root or elevated permissions to run, which might be a security concern in certain environments.
  • Text-based Output
    As a text-based tool, iftop may not provide the most visually appealing outputs, which can be a drawback for users who prefer graphical interfaces.
  • Not Cross-Platform
    iftop is primarily designed for Unix-like systems and may not be available or easily operable on non-Unix platforms like Windows.

Cert Decoder features and specs

  • User-Friendly Interface
    Cert Decoder is designed with a simple and intuitive interface that makes it easy for users to navigate and use the tool without requiring extensive technical knowledge.
  • Comprehensive Analysis
    The tool provides detailed analyses of certificates, including information about validity, issuer, encryption algorithms, and more, helping users understand their security certificates thoroughly.
  • Free to Use
    Cert Decoder offers its services free of charge, making it accessible for individuals and organizations without budget constraints.
  • Quick Processing
    The tool processes certificate information rapidly, providing almost instant results for users, which is crucial for time-sensitive tasks.

Possible disadvantages of Cert Decoder

  • Limited Advanced Features
    Compared to some paid alternatives, Cert Decoder might lack advanced features that are necessary for more complex certificate management and diagnostics.
  • Reliance on Internet Access
    Users need an active internet connection to utilize the tool, which can be a limitation in areas with unreliable internet service.
  • Privacy Concerns
    While using an online service to decode certificates, there can always be privacy concerns regarding sensitive data being uploaded to a third-party server.
  • No Offline Mode
    Cert Decoder does not offer an offline mode, which could be a drawback for users who require functionality without constant internet availability.

Analysis of Cert Decoder

Overall verdict

  • Cert Decoder appears to be a free online tool for decoding and inspecting SSL/TLS certificates, CSRs, and related cryptographic data, making it useful for quick, no-install certificate analysis, though it should be used with awareness of general web tool privacy considerations when handling sensitive certificate data.

Why this product is good

  • Provides quick, browser-based decoding of certificates without needing to install software
  • Useful for troubleshooting SSL/TLS certificate issues on the fly
  • Simple interface aimed at both technical and semi-technical users
  • No cost to use for basic certificate decoding tasks

Recommended for

  • System administrators needing to quickly verify certificate details
  • Developers debugging SSL/TLS configuration issues
  • IT support staff troubleshooting website certificate errors
  • Students or professionals learning about certificate structure and encoding

iftop videos

How to monitor network bandwidth using Iftop

More videos:

  • Tutorial - How to install iftop and use it on Linux Mint 18.3
  • Review - Untangle Traffic monitoring with Iftop

Cert Decoder videos

No Cert Decoder videos yet. You could help us improve this page by suggesting one.

Add video

Category Popularity

0-100% (relative to iftop and Cert Decoder)
Monitoring Tools
88 88%
12% 12
Command Line Tools
100 100%
0% 0
Website Monitoring
0 0%
100% 100
Tool
100 100%
0% 0

Questions & Answers

As answered by people managing iftop and Cert Decoder.

What's the story behind your product?

Cert Decoder's answer:

I built certdecoder.com over the weekend for my own needs. Sometimes in my work, I need to verify and check certificate details.

Which are the primary technologies used for building your product?

Cert Decoder's answer:

certdecoder.com was built using just JavaScript and HTML—simple, fast, and with all processing happening locally in your browser, so no certificate data is sent to any server

How would you describe the primary audience of your product?

Cert Decoder's answer:

certdecoder.com is primarily built for developers, sysadmins, cybersecurity enthusiasts, and DevOps engineers.

Why should a person choose your product over its competitors?

Cert Decoder's answer:

Simple, fast, and reliable. Some similar tools can’t even decode basic certificates. I rigorously tested my tool with many real-world certificates and covered several edge cases where competitors fall short.

Who are some of the biggest customers of your product?

Cert Decoder's answer:

certdecoder.com is primarily built for developers, sysadmins, cybersecurity enthusiasts, and DevOps engineers.

User comments

Share your experience with using iftop and Cert Decoder. For example, how are they different and which one is better?
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Social recommendations and mentions

Based on our record, Cert Decoder seems to be more popular. It has been mentiond 1 time since March 2021. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.

iftop mentions (0)

We have not tracked any mentions of iftop yet. Tracking of iftop recommendations started around Mar 2021.

Cert Decoder mentions (1)

  • Banana.dog back from the dead
    Why? Because I built certdecoder.com and couldn’t find a decent place to submit it. So I said screw it — I’ll build my own. With blackjack and hookers. - Source: dev.to / over 1 year ago

What are some alternatives?

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Iotop - Iotop's homepage