npmpackage.info

Gathering detailed insights and metrics for base-x

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> module compatible base-x

Gathering detailed insights and metrics for base-x

base-x - 5.0.1 | npmpackage.info

base-x

Encode/decode any base

5.0.1

324

MIT

JavaScript

859.00 B

378,089,868 4.1

Installations

npm install base-x

Developer Guide

BETA

Typescript

Yes

Module System

ESM

Node Version

22.5.1

NPM Version

10.8.2 Score

99.9

Supply Chain

91.2

Quality

87.4

Maintenance

100

Vulnerability

100

License

Pull Requests

Open

1

Total

54

Closed

20

Merged

33

Issues

Open

1

Total

33

Closed

32

Releases

Unable to fetch releases

Languages

JavaScript

TypeScript

JavaScript (73.09%)

TypeScript (26.91%)

Developer

cryptocoinjs

Download Statistics

Total Downloads

378,089,868

Last Day

256,554

Last Week

4,334,304

Last Month

17,561,201

Last Year

154,374,479

GitHub Statistics

MIT License

324 Stars

138 Commits

76 Forks

13 Watchers

9 Branches

22 Contributors

Updated on Apr 30, 2025

Bundle Size

1.75 kB

Minified

859.00 B

Minified + Gzipped

Bundlephobia

Maintainers

View All 22 Contributors

Package Meta Information

Latest Version

5.0.1

Package Id

base-x@5.0.1

Unpacked Size

14.04 kB

Size

4.33 kB

File Count

NPM Version

10.8.2

Node Version

22.5.1

Published on

Mar 08, 2025

Total Downloads

Cumulative downloads

Total Downloads

378,089,868

Last Day

16.5%

256,554

Compared to previous day

Last Week

-2.2%

4,334,304

Compared to previous week

Last Month

4.4%

17,561,201

Compared to previous month

Last Year

79.2%

154,374,479

Compared to previous year

Weekly Downloads

Monthly Downloads

Yearly Downloads

Dev Dependencies

@types/node rimraf standard tape typescript

base-x

Fast base encoding / decoding of any given alphabet using bitcoin style leading zero compression.

WARNING: This module is NOT RFC3548 compliant, it cannot be used for base16 (hex), base32, or base64 encoding in a standards compliant manner.

Example

Base58

1var BASE58 = '123456789ABCDEFGHJKLMNPQRSTUVWXYZabcdefghijkmnopqrstuvwxyz'
2import basex from 'base-x'
3var bs58 = basex(BASE58)
4
5var decoded = bs58.decode('5Kd3NBUAdUnhyzenEwVLy9pBKxSwXvE9FMPyR4UKZvpe6E3AgLr')
6
7console.log(decoded)
8// => Uint8Array(33) [
9//   128, 237, 219, 220,  17, 104, 241, 218,
10//   234, 219, 211, 228,  76,  30,  63, 143,
11//    90,  40,  76,  32,  41, 247, 138, 210,
12//   106, 249, 133, 131, 164, 153, 222,  91,
13//    25
14// ]
15
16console.log(bs58.encode(decoded))
17// => 5Kd3NBUAdUnhyzenEwVLy9pBKxSwXvE9FMPyR4UKZvpe6E3AgLr

Alphabets

See below for a list of commonly recognized alphabets, and their respective base.

Base	Alphabet
2	`01`
8	`01234567`
11	`0123456789a`
16	`0123456789abcdef`
32	`0123456789ABCDEFGHJKMNPQRSTVWXYZ`
32	`ybndrfg8ejkmcpqxot1uwisza345h769` (z-base-32)
36	`0123456789abcdefghijklmnopqrstuvwxyz`
58	`123456789ABCDEFGHJKLMNPQRSTUVWXYZabcdefghijkmnopqrstuvwxyz`
62	`0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ`
64	`ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/`
67	`ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789-_.!~`

How it works

It encodes octet arrays by doing long divisions on all significant digits in the array, creating a representation of that number in the new base. Then for every leading zero in the input (not significant as a number) it will encode as a single leader character. This is the first in the alphabet and will decode as 8 bits. The other characters depend upon the base. For example, a base58 alphabet packs roughly 5.858 bits per character.

This means the encoded string 000f (using a base16, 0-f alphabet) will actually decode to 4 bytes unlike a canonical hex encoding which uniformly packs 4 bits into each character.

While unusual, this does mean that no padding is required and it works for bases like 43.

LICENSE MIT

A direct derivation of the base58 implementation from bitcoin/bitcoin, generalized for variable length alphabets.

High

0/10

Summary

Homograph attack allows Unicode lookalike characters to bypass validation.

Affected Versions

<= 3.0.10

Patched Versions

3.0.11

High

0/10

Summary

Homograph attack allows Unicode lookalike characters to bypass validation.

Affected Versions

= 4.0.0

Patched Versions

4.0.1

High

0/10

Summary

Homograph attack allows Unicode lookalike characters to bypass validation.

Affected Versions

= 5.0.0

Patched Versions

5.0.1

10

Binary-Artifacts

Determines if the project has generated executable (binary) artifacts in the source repository.

10

Dangerous-Workflow

Determines if the project's GitHub Action workflows avoid dangerous patterns.

10

License

Determines if the project has defined a license.

9

Vulnerabilities

Determines if the project has open, known unfixed vulnerabilities.

4

Code-Review

Determines if the project requires human code review before pull requests (aka merge requests) are merged.

3

Pinned-Dependencies

Determines if the project has declared and pinned the dependencies of its build process.

2

Maintained

Determines if the project is "actively maintained".

0

Token-Permissions

Determines if the project's workflows follow the principle of least privilege.

0

CII-Best-Practices

Determines if the project has an OpenSSF (formerly CII) Best Practices Badge.

0

Security-Policy

Determines if the project has published a security policy.

0

Fuzzing

Determines if the project uses fuzzing.

0

Branch-Protection

Determines if the default and release branches are protected with GitHub's branch protection settings.

0

SAST

Determines if the project uses static code analysis.

Score

4.1

/10

Last Scanned on 2025-04-28

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