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mfen.de
Platform Engineering

Tools

Small, client-side utilities shipped as lightweight React islands.

  • Status: beta

    Cron Expression Humanizer

    Translate cryptic cron expressions into human-readable English (and handle those odd edge cases).

    • automation
    • ops
  • Status: beta

    SAML response analyzer

    Decode SAML responses or requests locally, including deflate-compressed query payloads.

    • identity
    • saml
  • Status: beta

    AWS Sigv4 generator

    Generate AWS Signature Version 4 headers for API requests without using a heavy SDK.

    • aws
    • security
    • api
  • Status: beta

    CIDR helper

    Quickly expand CIDR ranges and calculate subnets for firewall rules.

    • networking
  • Status: beta

    Julian Date Converter

    Convert between Julian Date (JD), Modified (MJD), and Truncated (TJD) formats with split-part precision.

    • timekeeping
    • astronomy
    • utilities
  • Status: beta

    JWT decoder

    Inspect JWT headers and claims locally without sending data to a server.

    • identity
    • jwt
    • security
  • Status: beta

    Sigv4 visualizer

    Step-by-step breakdown of the AWS Sigv4 signing process, from canonical request to final signature.

    • aws
    • education
    • security
  • Status: beta

    Time zone and epoch converter

    Leap-second aware conversion between UTC, GPS time, Julian dates, and Excel serial dates.

    • timekeeping
    • time
    • utilities