Convert .env documents and JSON objects.
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Node.js 22+ · ES module (.mjs)
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const text = "APP_NAME=demo\nPORT=8080\n# comment";
const values = Object.create(null);
for (const line of text.split(/\r?\n/)) {
if (!line.trim() || line.trimStart().startsWith("#")) continue;
const match = /^([A-Za-z_][A-Za-z0-9_]*)=(.*)$/.exec(line.trim());
if (!match) throw new Error("Expected KEY=value");
values[match[1]] = match[2]; // Values stay strings.
}
console.log(JSON.stringify(values, null, 2));
// Basic unquoted, single-line format only; no expansion or shell execution.Convert .env documents and JSON objects.
Values remain strings, with no variable expansion. The last duplicate key wins. Represent multiline values as \n inside double quotes.
Text 1 MB
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