PLOW // FIELD TOOLKIT — REV.01
Small, sharp tools
for heavy work.
A rig of 33 developer utilities — formatting, encoding, converting, generating. Each runs on its own page, entirely in your browser. No servers, no uploads, no nonsense. Your last input stays put.
⌘K33 / 33
Formatters & Parsers
04- 00Regex TesterTest regular expressions live — match highlighting, group capture, plus replace and split modes.
- 01JSON FormatterPretty-print, minify, and validate JSON with precise error locations.
- 02SQL FormatterDB2 z/OSFormat and standardize SQL across many dialects, including DB2 for z/OS.
- 03Markdown & Rich Text ConverterConvert Markdown ⇄ Rich Text ⇄ HTML — paste Word/Docs/web or import .docx, theme the output, export HTML/Markdown/PDF.
Color & CSS
06- 04Color ConverterConvert between HEX, RGB, HSL, OKLCH, and HWB with a live swatch.
- 05Gradient GeneratorBuild multi-stop linear or radial CSS gradients and copy the rule.
- 06Contrast CheckerCheck foreground/background contrast against WCAG AA/AAA and APCA Lc.
- 07Palette GeneratorGenerate complementary, analogous, triadic, and tetradic color harmonies.
- 08Theme Kit GeneratorPreview 50 hand-crafted design-system themes in light and dark — or derive one from a base color — and download a self-contained CSS + JS component kit.
- 09Box-Shadow GeneratorVisually compose CSS box-shadows with live preview and copyable rule.
Encoders
04- 10Base64 Encode/DecodeEncode text to Base64 and decode it back, UTF-8 safe.
- 11URL Encode/DecodePercent-encode and decode URL components and full URIs.
- 12HTML EntitiesEncode and decode HTML entities to safely display or unescape markup.
- 13JWT DecoderDecode a JSON Web Token header and payload, and verify HS256/384/512 signatures with a secret.
Generators
05- 14UUID / ULID GeneratorGenerate UUID v4/v7, NIL, and sortable ULIDs in bulk — with uppercase and hyphenless options.
- 15Password GeneratorGenerate strong random passwords with configurable character sets.
- 16Lorem IpsumGenerate placeholder paragraphs, sentences, or words.
- 17QR Code GeneratorTurn any text or URL into a downloadable QR code.
- 18Hash GeneratorCompute MD5 and SHA-1/256/384/512 digests (or keyed HMACs) of text or files, in hex or Base64.
Converters
08- 19JSON ↔ YAMLConvert between JSON and YAML in both directions.
- 20JSON → TableTurn JSON into CSV, Markdown, or themed HTML tables — flatten nested fields or split nested arrays into linked tables.
- 21JSON Value ExtractorPull values out of JSON by nesting depth — with custom delimiter, quoting, and nested-container placeholders.
- 22Timestamp ConverterConvert between Unix timestamps and human-readable dates (UTC & local).
- 23Number Base ConverterConvert integers between binary, octal, decimal, and hexadecimal.
- 24Case ConverterTransform text between camelCase, snake_case, kebab-case, Title Case, and more.
- 25Cron ExplainerTranslate a cron expression into plain English.
- 30Unit ConverterConvert length, mass, temperature, area, volume, data, speed, time, power, and energy.