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Listmonk VS Cert Decoder

Compare Listmonk VS Cert Decoder and see what are their differences

Listmonk

Send e-mail campaigns from a powerful dashboard. High performance and features packed into one app.

Listmonk Landing page
Rating
0 reviews
Pricing
Open source Free
Is it good? Alternatives
Cert Decoder

Decode and verify SSL/TLS certificates online. Extract X.509 details including issuer, validity, SAN, and fingerprint. Fast, secure, and browser-based.

Cert Decoder screenshot
Rating
0 reviews
Pricing
Free
Is it good? Alternatives
Hyperview
DCIM software reinvented. sponsored
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.

Which is more popular?

Based on our record, Listmonk seems to be a lot more popular than Cert Decoder. While we know about 32 links to Listmonk, we've tracked only 1 mention of Cert Decoder.

social mentions
32 vs 1
Email Marketing popularity
100% vs 0%

Base details

Website, pricing, platforms and company facts side by side.

Listmonk
Cert Decoder
Website listmonk.app certdecoder.com
Pricing
Open source Free
Free
Platforms —
Web
Company Startup from India —
Listed in
Newsletter Marketing Self-Hosted Newsletter Email Marketing Mailing List Manager +1
SSL Certificates Decoding Website Monitoring Monitoring Tools +1

About Listmonk and Cert Decoder

In their own words, as submitted to SaaSHub.

Listmonk
Cert Decoder

No description of Listmonk yet.

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.

Read more about Cert Decoder

Features and specs

What each product offers, as listed by its team.

Listmonk 6 features
Cert Decoder 4 features
  • Open Source
    Listmonk is free to use, modify, and distribute. This can offer significant cost savings compared to proprietary email marketing solutions.
  • Self-Hosted
    Allows you to have full control over the software and your data, providing enhanced security and customization possibilities.
  • Scalability
    Designed to handle millions of subscribers and messages effectively, making it suitable for both small and large-scale email marketing campaigns.
  • Multilingual Support
    Supports multiple languages, making it accessible for users from different linguistic backgrounds.
  • API Access
    Provides a comprehensive API, allowing for excellent integration with other software and platforms.
  • Flexible Database
    Supports both PostgreSQL and SQLite, catering to different user needs and technical requirements.

Possible disadvantages

  • Technical Expertise Required
    Being a self-hosted solution, it requires a certain level of technical knowledge for setup, maintenance, and troubleshooting.
  • Hosting Costs
    Although the software itself is free, you will need to incur costs for hosting and maintaining the server where Listmonk is installed.
  • Limited Built-In Templates
    May not come with a wide variety of pre-designed email templates, requiring users to create their own or import from other sources.
  • Community Support
    Unlike commercial solutions, support is primarily community-driven, which may lead to slower issue resolution compared to dedicated support teams.
  • Learning Curve
    The initial setup and configuration can be complex and may require a time investment to understand all its features and functionalities.
  • 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

  • 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

An editorial look at what each product does well and who it suits.

Listmonk
Cert Decoder

Overall verdict

  • Yes, Listmonk is a good option for those who prefer a self-hosted, open-source mailing list manager. It provides powerful features without recurring subscription costs and allows for full control over your data.

Why this product is good

  • Listmonk is a self-hosted newsletter and mailing list manager that is appreciated for its open-source nature, flexibility, and robust features. It offers advanced segmentation, analytics, and a user-friendly interface, making it suitable for businesses looking for a customizable and privacy-focused solution.

Recommended for

  • Businesses or individuals looking for a cost-effective solution without recurring fees
  • Those who require a high degree of customization and flexibility
  • Organizations that prioritize data privacy and security
  • Developers or tech-savvy users comfortable with self-hosting applications

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

Videos

Walkthroughs and reviews on video.

Listmonk 1 video + Add
Cert Decoder 0 videos + Add

Listmonk

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

Category popularity

How often each product is chosen within a category, 0–100% relative to the other.

Score bands 0–20 21–40 41–50 51–60 61–100
Listmonk
Cert Decoder
100% 100%
Email Marketing
0% 0%
0% 0%
Decoding
100% 100%
100% 100%
Newsletter Marketing
0% 0%
0% 0%
Monitoring Tools
100% 100%

Questions & Answers

As answered by people managing Listmonk 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 Listmonk and Cert Decoder. For example, how are they different and which one is better?

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Social recommendations and mentions

Recommendations tracked on public social media and blogs since March 2021.

Listmonk 32 mentions
Cert Decoder 1 mention
  • Email Marketing Automation in 2026: 5 Tools (and 1 Self-Hosted) Through Their APIs
    Listmonk is open-source, Go-based, single-binary or Docker. No task counter, no contact limit, no premium feature gates. Drop this on a $6 VPS:. - Source: dev.to / 4 months ago
  • 5 Open Source Alternatives Worth Considering Before Renewing Expensive SaaS Tools
    Email marketing platforms are another category where the commercial pricing has drifted well above the value delivered for most use cases. Listmonk is a self-hosted newsletter and mailing list manager written in Go that handles... - Source: dev.to / 5 months ago
  • Newsletters
    Listmonk is a high-performance, self-hosted newsletter and mailing list manager written in Go. It ships as a single binary backed by PostgreSQL and handles millions of subscribers without flinching. The web UI is fast and uncluttered —... - Source: dev.to / 6 months ago

View more

  • 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

Alternatives to Listmonk and Cert Decoder

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

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