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Utilities tools.

Generate, convert and reshape identifiers, text and file modes — pure client-side.

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Utilities tools

  • UtilitiesLive

    UUID / ULID Generator

    Generate v4 UUIDs and ULIDs, or inspect one.

    Generate cryptographically random v4 UUIDs and lexicographically sortable ULIDs in bulk, or paste an identifier to decode its version, variant and embedded timestamp — all in the browser.

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  • UtilitiesLive

    Case Converter

    Convert text between camelCase, snake_case, kebab-case and more.

    Convert any string between camelCase, PascalCase, snake_case, SCREAMING_SNAKE_CASE, kebab-case, Title Case and more at once — copy the one you need. Unicode-aware, entirely client-side.

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  • UtilitiesLive

    Slugify

    Turn any title into a clean URL slug.

    Turn titles and headings into clean, URL-safe slugs: strips accents and diacritics, collapses separators and enforces a max length. Configurable separator, all in the browser.

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  • UtilitiesLive

    chmod Calculator

    Convert chmod between octal, symbolic and the permission matrix.

    Convert Unix file permissions between octal (755), symbolic (rwxr-xr-x) and a checkbox matrix — including setuid, setgid and the sticky bit — and copy the exact chmod command. Pure client-side bit math.

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  • UtilitiesLive

    Data Size Converter

    GiB vs GB, bits vs bytes — and how long that transfer really takes.

    Convert data sizes between SI (kB, MB, GB) and IEC (KiB, MiB, GiB) units with exact BigInt maths, tell bits from bytes without guessing, and get the transfer time for any link speed. Pure client-side.

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When you reach for Utilities tools.

These are the small conversions that interrupt real work. A Unix timestamp in a log line you need in a readable timezone. A file mode you can read as rwxr-xr-x but need as 0755. An identifier you want sortable rather than random.

The reason to have them here rather than reaching for whatever is top of the search results is narrow and practical: what you paste into them is frequently a fragment of production — a timestamp from an incident, a hash from a build, a string from a customer record. These run entirely in your browser, so that fragment does not become someone else's log line.

They are also chosen to be exact about things that are usually fudged: ULIDs versus UUIDv4 and when sortability matters, and the difference between decimal and binary units when a "1 GB" limit is actually 1 GiB.

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