CHChris Holman
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Tools

Things I made for you

Small, focused developer utilities. Free, fast, and every one of them runs entirely in your browser — nothing is uploaded or stored.

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    DisarmSkill

    Turn a risky AI skill file into a safe, cleaned-up version.

    • Security
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    JSON Formatter

    Prettify, minify and validate JSON.

    • JSON
    • Format
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    YAML ⇄ JSON

    Convert and tidy between YAML and JSON.

    • YAML
    • Convert
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    Base64

    Encode and decode Base64 (UTF-8 safe).

    • Encode
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    URL Encoder

    Encode and decode URL components.

    • Encode
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    JWT Decoder

    Inspect a token’s header and payload.

    • Security
    • JWT
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    Password Generator

    Strong random passwords with an entropy meter.

    • Security
    • Generate
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    UUID Generator

    Generate v4 UUIDs in bulk.

    • Generate
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    Hash

    SHA-1/256/384/512 of any text.

    • Security
    • Hash
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    Timestamp

    Convert between Unix time and dates.

    • Time
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    IP Lookup

    Geo & ASN details for any IP address.

    • Network
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    CVE Lookup

    Look up a vulnerability by CVE ID.

    • Security
    • CVE
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