@sopkit/base64

Premium, lightweight Base64 encoder and decoder for both Browser and Node.js environments. Part of the SopKit utility ecosystem.

Online Interactive Tool

You can use the browser-based interactive version of this tool at SopKit Base64 Encoder/Decoder.

Features

• Full Unicode/UTF-8 support (unlike standard btoa/atob which fail on emojis and special chars)
• URL-safe encoding/decoding (+ ➜ -, / ➜ _, strips =)
• Zero dependencies
• Fully typed API with strict TypeScript
• ESM and CommonJS support

Installation

npm install @sopkit/base64

Quick Start

ESM

import { encode, decode, urlEncode, urlDecode, isValid } from "@sopkit/base64";

const text = "Hello World 🚀";

// Standard base64
const encoded = encode(text); // "SGVsbG8gV29ybGQg8J+Zog=="
const decoded = decode(encoded); // "Hello World 🚀"

// URL-safe base64
const urlSafeEncoded = urlEncode(text); // "SGVsbG8gV29ybGQg8J-Zog"
const urlSafeDecoded = urlDecode(urlSafeEncoded); // "Hello World 🚀"

// Validation
isValid("SGVsbG8gV29ybGQg8J+Zog=="); // true
isValid("invalid base64!"); // false

CommonJS

const { encode, decode } = require("@sopkit/base64");

const encoded = encode("Hello World");
const decoded = decode(encoded);

License

MIT © SopKit