Software Alternatives & Startups

SpaceSniffer VS Cert Decoder

Compare SpaceSniffer VS Cert Decoder and see what are their differences

Note: These products don't have any matching categories. If you think this is a mistake, please edit the details of one of the products and suggest appropriate categories.

SpaceSniffer logo SpaceSniffer

SpaceSniffer is a freeWare (donations are welcome) and portable tool application that lets you understand how folders and files are structured on your disks.

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.
  • SpaceSniffer Landing page
    Landing page //
    2018-09-29
  • 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.

SpaceSniffer features and specs

  • Visual Representation
    SpaceSniffer provides a graphical view of disk usage through treemaps, making it easy to identify large files and folders.
  • Freeware
    The software is available for free, making it accessible to a wide range of users without any cost.
  • Portability
    SpaceSniffer is portable and does not require installation, allowing it to be run from a USB drive on different computers.
  • Customizable Filters
    Users can apply filters to focus on specific file types, sizes, or attributes, which helps in detailed analysis of disk usage.
  • Real-time Update
    The tool updates in real-time as the disk content changes, ensuring that the visual data remains current and relevant.

Possible disadvantages of SpaceSniffer

  • Windows Only
    SpaceSniffer is only available for Windows, limiting its usability for Mac and Linux users.
  • No File Management
    While it provides good visualization, the tool does not offer advanced file management features like moving or deleting files directly within the interface.
  • Resource Intensive
    Large scans can consume significant system resources, potentially slowing down the computer during use.
  • No Scheduled Scans
    SpaceSniffer does not have options for scheduling scans or automated reports, which may be a drawback for users looking for regular monitoring.
  • Limited Support and Updates
    As a freeware product, it may not receive frequent updates or direct support, which could be a concern for long-term reliability.

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 SpaceSniffer

Overall verdict

  • SpaceSniffer is generally considered a good tool for anyone who needs to quickly understand their disk usage patterns and free up space. Its visual approach is intuitive, making it accessible for both technical and non-technical users.

Why this product is good

  • SpaceSniffer is a free disk space analysis tool for Windows. It uses a visually engaging, Treemap-style layout to help users identify large files and folders, making it easier to manage disk space efficiently. The program is lightweight and portable, which means it doesn't require installation and can be run from external drives.

Recommended for

  • Users looking for a free disk space analysis tool
  • Windows users who want a portable and lightweight solution
  • Individuals who prefer a visual representation of their data
  • Anyone needing to manage and optimize storage space efficiently

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

SpaceSniffer videos

Visualize and free up disk space with SpaceSniffer

More videos:

Cert Decoder videos

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Category Popularity

0-100% (relative to SpaceSniffer and Cert Decoder)
Disk Analyzer
100 100%
0% 0
Decoding
0 0%
100% 100
Hard Disk Usage
100 100%
0% 0
Monitoring Tools
0 0%
100% 100

Questions & Answers

As answered by people managing SpaceSniffer 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 SpaceSniffer 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.

SpaceSniffer mentions (0)

We have not tracked any mentions of SpaceSniffer yet. Tracking of SpaceSniffer 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?

When comparing SpaceSniffer and Cert Decoder, you can also consider the following products

WinDirStat - WinDirStat is a disk usage statistics viewer and cleanup tool, inspired by KDirStat.

WizTree - WizTree quickly finds the files and folders using the most space on your hard drive. It scans the MFT (Master File Table) instead of crawling the entire disk which makes it very fast.

TreeSize - TreeSize tells you where precious disk space has gone to.

Baobab - Distributor of workload automation, financial statement reporting, data access, IT Asset Management and Service Desk software solutions.

Fences - Keep your desktop organized with Fences. This is a simple software program that allows you to sort the tabs on your desktop and create files that are easily recognizable to you.

JDiskReport - JDiskReport enables you to understand how much space the files and directories consume on your disk...