This project is part of the @thi.ng/umbrella monorepo.

• About
• Status
• Installation
• Dependencies
• API
• Authors
• License

Arbitrary base-n conversions w/ presets for base8/16/32/36/58/62/64/85, support for bigints and encoding/decoding of byte arrays.

In addition to the actual converters/encoders, the package also provides the plain character strings for each base and variations.

STABLE - used in production

Search or submit any issues for this package

yarn add @thi.ng/base-n

ES module import:

<script type="module" src="https://cdn.skypack.dev/@thi.ng/base-n"></script>

Skypack documentation

For Node.js REPL:

const baseN = await import("@thi.ng/base-n");

Package sizes (brotli'd, pre-treeshake): ESM: 931 bytes

• @thi.ng/hex

Generated API docs

import { BASE85, defBase } from "@thi.ng/base-n";

BASE85.encodeBigInt(2n ** 128n - 1);
// '=r54lj&NUUO~Hi%c2ym0'

BASE85.decodeBigInt("=r54lj&NUUO~Hi%c2ym0").toString(16);
// 'ffffffffffffffffffffffffffffffff'

// define a custom base impl
const ternary = defBase("012");

ternary.encode(12345678)
// '212020020002100'

ternary.decode("212020020002100");
// 12345678

• Karsten Schmidt

If this project contributes to an academic publication, please cite it as:

@misc{thing-base-n,
  title = "@thi.ng/base-n",
  author = "Karsten Schmidt",
  note = "https://thi.ng/base-n",
  year = 2017
}

© 2017 - 2023 Karsten Schmidt // Apache License 2.0