Singapore landed-house district price stats

Talk to Jesus

Parse a user agent string into structured data

Base58 encode or decode text (Bitcoin/IPFS alphabet). mode: encode (default) or decode.

Percentage helper. op: "of" (a% of b), "change" (% change a→b), "ratio" (a is what % of b).

Convert an integer between number bases (radix 2-36), e.g. binary↔hex↔decimal. Arbitrary size via BigInt.

Flatten nested JSON to dot-path keys, or unflatten dot-path keys back to nested JSON. mode: flatten (default) | unflatten.

Safely evaluate an arithmetic expression (+ - * / % ^ and parentheses). No code execution — a real parser, not eval.

Convert an integer (1-3999) to Roman numerals, or a Roman numeral back to an integer. Auto-detects direction.

Deep-merge two JSON objects (b wins on conflicts; arrays are concatenated).

Levenshtein edit distance between two strings, plus a 0-1 similarity ratio.

Sort the lines of a text. order: asc (default) | desc | numeric. unique:true removes duplicates; ci:true is case-insensitive.

Convert a value between units of length, mass, temperature (C/F/K), data, time, or speed.

Format a number: thousands separators, fixed decimals, optional currency, or compact (1.2K / 3.4M).

Count characters, words, lines, and (optionally) occurrences of a substring in text.

Truncate text to a maximum length, adding an ellipsis (or custom suffix). Optionally break on word boundaries.

Remove duplicate lines, preserving first-seen order. Returns the deduped text and how many were removed.

Descriptive statistics for an array of numbers: count, sum, mean, median, mode, min, max, range, variance, stddev, and percentiles.

Parse a URL query string into an object, or build one from an object. mode: parse (default) | build.

Convert meters to light years (length). Pass ?value=N.