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A New Format for Lossless and Lossy Image Compression

2packages dependsuggested by 6
998.2Kdownloads / year
–test coverage
13/13flavors OK

Overview

About

Lossless webp images are 26% smaller in size compared to PNG. Lossy webp images are 25-34% smaller in size compared to JPEG. This package reads and writes webp images into a 3 (rgb) or 4 (rgba) channel bitmap array using conventions from the 'jpeg' and 'png' packages.

Changes in 1.3.0
  • Windows: use libwebp from Rtools if found

From NEWS in the release

Install

Health

CRAN checks
13OK
Slowest check: 2.0 min · r-devel-windows-x86_64
Status changes
  • OK13 OK2026-08-04
  • NOTE12 OK, 1 NOTE2026-08-01
  • OK14 OK2026-03-10
Advisories

none known

Documentation

In release 1.3.0
README· In the repository, left out of the releaseVignettesNoNEWSYes · 100% structured · mentions 1.3.0Citation fileNoWebsiteYes
Help pages
1
Examples that run
100%1 run in a plain check
Exported functions with examples
100%
Documented parameters
100%
Return-value docs
0%
Help pages citing references
0%

Downloads

998.2K
CRAN downloads in the past year
Rank #588 · ~2.7K/day · ~83.2K/mo
Daily download trend is not available in this view yet.
7.2K30 days
105.2K90 days
998.2K1 year
Compare downloads with other packages →
Also on488 r2u46 c2d4u

Repository

17Stars
3Forks
0Open issues
1Open PRs
3Releases
81Commits
3Commit identities
81 commits · Last activity 2025-07-14 · 0% stars, 30d
Responsiveness
How these are sampled
PRs merged (all time)
100%
Median days to close, 50 most recently updated closed issues
67
Median days to close, 50 most recently updated closed PRs
0

Stars over time

2025-08-13 · 162026-07-07 · 17
PracticesBeta

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

Checks run against github.com/jeroen/webp on 2026-10-18.

Continuous integration (3)
GitHub ActionsR CMD check workflowAppVeyor

The R CMD check workflow runs on Linux, macOS and Windows, and on R-devel

Lint, format, editor (1)
RStudio project
How this is detected·Detection ruleset v3 (2026-09-26)

Dependencies

Declared dependencies
2 external dependencies (excludes base and recommended)

Installing webp adds no packages beyond those that come with R.

Depends (0)
none
Imports (0)
none
LinkingTo (0)
none
Suggests (2)
Enhances (0)
none
Reverse dependencies
2direct
1indirect
Imports 2
Suggested by 6
Depends, Imports or LinkingTo, most downloaded first
Suggests, most downloaded first

People & History

People (1)
Author, Maintainer since 0.2 (2015)
Releases (8)

Pick two releases to compare their code metrics.

  • R
    R 4.6.0 released · 2026-04-24
  • R
    R 4.5.0 released · 2025-04-11
  • 1.3.0Latest
    record
    2024-12-16 · current release · diff ↗
  • 1.2.1
    record
    2024-10-04 · diff ↗
  • R
    R 4.4.0 released · 2024-04-24
  • 1.2.0
    record
    2023-09-26 · diff ↗
  • R
    R 4.3.0 released · 2023-04-21
  • R
    R 4.2.0 released · 2022-04-22
  • 1.1.0
    record
    2021-11-02 · diff ↗
  • R
    R 4.1.0 released · 2021-05-18
  • R
    R 4.0.0 released · 2020-04-24
  • R
    R 3.6.0 released · 2019-04-26
  • 1.0
    record
    2019-03-04 · diff ↗
  • R
    R 3.5.0 released · 2018-04-23
  • R
    R 3.4.0 released · 2017-04-21
  • 0.4
    record
    2017-03-30 · diff ↗
Show 4 earlier eventsHide 4 earlier events
  • 0.3
    record
    2017-03-18 · diff ↗
  • R
    R 3.3.0 released · 2016-05-03
  • 0.2
    record
    2015-12-30
  • R
    R 3.2.0 released · 2015-04-16

Package metadata

First published
2015-12-30
Total releases
8 / 11 yrs
License
MIT + file LICENSE OSI
Download size
17 KB

Cite

Cite this package

Run in R for the authors' preferred citation:

citation("webp")
Ooms, J. (2024). webp: A New Format for Lossless and Lossy Image Compression (Version 1.3.0) [Computer software]. https://doi.org/10.32614/CRAN.package.webp

This package has no citation file, so citation() returns this entry built from DESCRIPTION.

Cite the R Observatory

For a number measured here: a download total, a coverage figure, an archival date.

APA

Balamuta, J. J. (2026). R Observatory: Metrics for webp version 1.3.0 [Data set]. HJJB, LLC. Data release v2026-10-21. https://doi.org/10.5281/zenodo.21843040

From data release v2026-10-21, which the citation names so these numbers can be found later. More on citing and the projects behind them.

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