ulid

0.4.0

Generate Universally Unique 'Lexicographically' 'Sortable' Identifiers

1packages depend

32.8Kdownloads / year

100.0%test coverage

12/13checks pass

Overview

About

Maintained by Dirk EddelbuettelFirst published 2019-07-093 releasesCRAN page ↗GitHub ↗

Universally unique identifiers ('UUIDs') can be sub-optimal for many uses-cases because they are not the most character efficient way of encoding 128 bits of randomness; v1/v2 versions are impractical in many environments, as they require access to a unique, stable MAC address; v3/v5 versions require a unique seed and produce randomly distributed IDs, which can cause fragmentation in many data structures; v4 provides no other information than randomness which can cause fragmentation in many data structures. Providing an alternative, 'ULIDs' (https://github.com/ulid/spec) have 128-bit compatibility with 'UUID', 1.21e+24 unique 'ULIDs' per millisecond, support standard (text) sorting, canonically encoded as a 26 character string, as opposed to the 36 character 'UUID', use 'base32' encoding for better efficiency and readability (5 bits per character), are case insensitive, have no special characters (i.e. are 'URL' safe) and have a monotonic sort order (correctly detects and handles the same millisecond).

Install

R (CRAN)pak (dev)Ubuntu (r2u)Fedora (COPR)openSUSE (OBS)

install.packages("ulid", repos = "https://cloud.r-project.org/")

Installs the current CRAN release. Prebuilt binaries on Windows and macOS.

if (!requireNamespace("pak", quietly = TRUE))
  install.packages("pak", repos = "https://cloud.r-project.org/")
pak::pak("eddelbuettel/ulid")

Development version from eddelbuettel/ulid. Installs pak first if it is not already available.

Release

# enable cranapt (r2u) if it is not already set up, then install
grep -rqs r2u.stat.illinois.edu /etc/apt/sources.list /etc/apt/sources.list.d/ \
  || curl -fsSL https://raw.githubusercontent.com/eddelbuettel/r2u/master/inst/scripts/add_cranapt_noble.sh | sudo bash
sudo apt install -y r-cran-ulid

Fast Ubuntu binaries via r2u (no compilation). The cranapt setup runs once and is skipped when it is already enabled.

bspm (used by r2u) also needs make: sudo apt install make

# enable the iucar/cran COPR if it is not already present, then install
ls /etc/yum.repos.d/*iucar*cran*.repo >/dev/null 2>&1 \
  || sudo dnf copr enable -y iucar/cran
sudo dnf install -y R-CRAN-ulid

RPMs from the iucar/cran COPR, rebuilt from CRAN.

For install.packages() integration in R, also: sudo dnf install R-CoprManager

# add the autoCRAN OBS repo (Tumbleweed) if it is missing, then install
zypper -q lr | grep -qi autoCRAN \
  || sudo zypper addrepo https://download.opensuse.org/repositories/devel:/languages:/R:/autoCRAN/openSUSE_Tumbleweed/devel:languages:R:autoCRAN.repo
sudo zypper install -y R-ulid

RPMs auto-built from CRAN on openSUSE OBS (Tumbleweed).

Health

CRAN checks

1NOTE12OK

Failing flavors

NOTE r-devel-linux-x86_64-debian-gcc

Slowest check: 1.4 min · r-oldrel-windows-x86_64

Code health

Yes

Tests · ratio 0.03

100.0%

Coverage · measured lines

100%

Documentation · exports

Dependencies · direct

Check history

NOTE2026-08-01
12 OK · 1 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE
OK2026-04-22
14 OK · 0 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE
ERROR2026-04-18
13 OK · 0 NOTE · 0 WARNING · 1 ERROR · 0 FAILURE
OK2026-03-10
14 OK · 0 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE

Documentation

READMENoVignettesNopkgdown siteNoNEWSNoCode of conductNoContributing guideNo

Examples that run: 100%
Documented parameters: 100%
Return-value docs: 100%
References docs: 0%

Downloads

32.8K

CRAN downloads in the past year

Rank #2,443 · ~90/day · ~2.7K/mo

Releases R versions

Daily download trend is not available in this view yet.

1.2K30 days

8.3K90 days

32.8K1 year

Compare downloads with other packages →

Also on380 r2u1 autocran

Repository

GitHub ↗ eddelbuettel/ulid

32Stars

2Forks

0Open issues

0Open PRs

3Releases

29Commits

2Contributors

rrstatsuliduuid

29 commits · Last activity 2026-07-27 · 0% stars, 30d

Stars over time

2025-04-02 · 282026-07-07 · 32

Repository practices

Upstream repositoryBeta

2 development-tooling and community-health practices detected across 2 families in the upstream repository

Checks run against github.com/eddelbuettel/ulid on 2026-08-02.

Continuous integration (1)

GitHub Actions

Lint, format, editor (1)

EditorConfig

How this is detected·Detection ruleset v1 (2026-07-18)

Dependencies

Declared dependencies

3 external dependencies (excludes base and recommended)

Depends (0)

none

Imports (1)

Rcpp

LinkingTo (1)

Rcpp

Suggests (1)

tinytest

Enhances (0)

none

Dependency license breakdown →

Reverse dependencies

1direct

0indirect

rotor

Code & Tests

People & History

People (3)

Maintainer (1)

Dirk Eddelbuettel

Maintainer · added in 0.3.1

Authors (2)

Bob Rudis

Author

Suyash Verma

Author · added in 0.3.1

Listed in earlier versions (1)

suyash

no longer listed · 0.3.0

Package Timeline

3 releases. Pick two to compare their code metrics. R releases are shown for context.

R
R 4.6.0 released · 2026-04-24
R
R 4.5.0 released · 2025-04-11
0.4.0Latest
2024-06-04 · current release · diff ↗
R
R 4.4.0 released · 2024-04-24
0.3.1
2024-04-02 · diff ↗
unarchivedReturned to CRAN
2024-04-02
archivedRemoved from CRAN
2024-03-24
issues were not corrected despite reminders
R
R 4.3.0 released · 2023-04-21
R
R 4.2.0 released · 2022-04-22
R
R 4.1.0 released · 2021-05-18
R
R 4.0.0 released · 2020-04-24
0.3.0
2019-07-09
R
R 3.6.0 released · 2019-04-26

Package metadata

First published: 2019-07-09
Total releases: 3 / 7 yrs
License: MIT + file LICENSE OSI
Download size: 13 KB
Installed size: not tracked yet
With dependencies: not tracked yet

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