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LinkWord online toolbox

50+ client-side tools for links, text, data, and color—runs locally in your browser alongside our directory and articles.

Links & network

  • UTM builder and parser

    Build tracked links or inspect query parameters from a URL.

  • QR code generator

    Encode text or URLs; style, templates, logo; export PNG or SVG.

  • URL encode / decode

    Percent-encode or decode URL components.

  • Extract links

    Grab URLs from prose and dedupe.

  • MIME lookup

    Extension → Content-Type: common and pro formats.

  • IP lookup

    Public geolocation, ASN, timezone, and offline IPv4/IPv6 checks.

Content & text

  • Markdown preview

    Live preview while you write.

  • Text diff

    Line-by-line differences between two texts.

  • Slug generator

    SEO-friendly path segments from titles.

  • HTML to text

    Strip tags for plain text.

  • OG preview

    Parse Open Graph tags from HTML.

  • Word count

    Characters, words, lines, paragraphs, CJK count.

  • Lorem ipsum

    Random multi-paragraph Latin-style filler text.

  • Case and naming

    UPPER, lower, camelCase, kebab-case, and more.

  • HTML entities

    Escape or unescape <, >, &, and quotes.

  • Line tools

    Sort, unique, trim, drop blanks, reverse.

  • Markdown table

    Sheet rows to GFM pipe table.

  • Word frequency

    Top Latin words and CJK characters.

  • Multilingual text art

    Canvas raster → plain-text character art for any script.

Data & dev

  • JSON / YAML

    Format JSON or convert between JSON and YAML.

  • Timestamp and zones

    Seconds/ms, IANA zones, multi-zone table, calendar info, ISO string parse.

  • Base64 encode / decode

    UTF-8 text and Base64 conversion.

  • Regex tester

    Run RegExp and list matches.

  • JWT decoder

    Inspect header and payload JSON.

  • UUID generator

    Random UUID v4 in batch.

  • SHA-256

    Text fingerprint hash.

  • Password generator

    Length and charset mix, secure random.

  • AI token calculator

    Estimate OpenAI-style tokens by model vocabulary.

  • Hex encode/decode

    UTF-8 bytes as hex and back.

  • ROT13

    Rotate Latin letters by 13.

  • Radix converter

    Binary, octal, decimal, hex integers.

  • CSV / TSV / table

    Delimited data ↔ Markdown table.

  • XML formatter

    Pretty-print XML locally.

  • JSON string

    Safe JSON string encode/decode.

  • SemVer

    Compare versions and bump hints.

  • Luhn check

    Mod-10 validation and check digit.

  • IBAN check

    Mod-97 IBAN validation.

  • Cron hints

    Ranges, lists, steps, names, summary, presets.

  • User-Agent

    Rough browser/OS from UA.

  • Sort JSON keys

    Recursive key sort + format.

  • HMAC-SHA256

    Message auth code in the browser.

  • IPv4 subnet

    Network, broadcast, usable hosts.

  • Repeat & pad

    repeat / padStart / padEnd.

  • Random pick

    Shuffle, pick one, pick N.

  • UTF-8 BOM

    Detect or add/remove BOM bytes.

  • Random hex

    CSPRNG bytes as hex.

Color & CSS

  • Color contrast

    WCAG contrast checks.

  • Safe colors

    WCAG contrast pairs and text-on-bg picks.

  • Linear gradient

    Copy linear-gradient CSS.

  • Box-shadow

    Visual box-shadow builder.

  • Color mix

    Blend two hex colors.