rnaturalearth
rnaturalearth finished its sp exit and is now optimising how the data actually arrives.
Comparison · Analytics
rredlist vs writexl
A side-by-side editorial comparison of rredlist and writexl — release velocity, themes, recent moves, and the top alternatives to consider.
rredlist vs writexl: at a glance
What is rredlist?
rredlist threw out its species-centric API in 1.0.0 and rebuilt around assessments.
rredlist 1.0.0 is a hard break: the IUCN Red List API moved to v4, and the package followed by dropping v3 support entirely, reorganising around assessments rather than species, renaming or removing most functions, changing returned data structures, and requiring users to generate a new API key. The two releases since are consolidation on that new shape — `rl_assessment_list()` and `rl_assessment_extract()` for retrieving and unpacking many assessments at once, a `scope` argument on the `*_latest()` functions, and NULL-safe extraction.
What is writexl?
writexl spent nine years refusing to do formatting, then shipped all of it in 2.0.0.
For most of its history writexl was a deliberately minimal wrapper: bump the vendored libxlsxwriter, handle NA and Date coercion correctly, support a list of data frames for multiple sheets, and nothing else. 2.0.0, released August 2026, changes that — near-full libxlsxwriter coverage, cell/worksheet/workbook formatting, cell comments, an `xl_cell_general` class carrying value, formula and hyperlink, a cell-by-cell refactor, libxlsxwriter 1.2.4, and memory-safety work. It landed the same day as 1.5.4, a typo fix on the old line.
rredlist vs writexl: editorial side-by-side
rredlist
0.0ANALYTICS
rredlist threw out its species-centric API in 1.0.0 and rebuilt around assessments.
◆ Current state
rredlist 1.0.0 is a hard break: the IUCN Red List API moved to v4, and the package followed by dropping v3 support entirely, reorganising around assessments rather than species, renaming or removing most functions, changing returned data structures, and requiring users to generate a new API key. The two releases since are consolidation on that new shape — `rl_assessment_list()` and `rl_assessment_extract()` for retrieving and unpacking many assessments at once, a `scope` argument on the `*_latest()` functions, and NULL-safe extraction.
◆ Where it's heading
Post-1.0.0 work is clearly aimed at bulk use: fetch many assessments, pull a chosen field out of each. That is a different usage pattern from the one-species-at-a-time queries the v3-era functions encouraged, and it suits the conservation-analysis workloads the package is actually used for. Deprecated v3 functions are still present and flagged for eventual removal.
◆ Prediction
The deprecated v3-era functions are the obvious next thing to disappear, and further bulk-retrieval helpers are likely given both post-1.0 releases went that way.
writexl
6.3ANALYTICS
writexl spent nine years refusing to do formatting, then shipped all of it in 2.0.0.
◆ Current state
For most of its history writexl was a deliberately minimal wrapper: bump the vendored libxlsxwriter, handle NA and Date coercion correctly, support a list of data frames for multiple sheets, and nothing else. 2.0.0, released August 2026, changes that — near-full libxlsxwriter coverage, cell/worksheet/workbook formatting, cell comments, an `xl_cell_general` class carrying value, formula and hyperlink, a cell-by-cell refactor, libxlsxwriter 1.2.4, and memory-safety work. It landed the same day as 1.5.4, a typo fix on the old line.
◆ Where it's heading
The package has changed category. Its selling point was being the dependency-free, opinion-free way to get a data frame into xlsx; 2.0.0 makes it a formatting-capable writer that now compares itself against openxlsx2 in its own test suite. The cell-by-cell refactor is what made that possible and is also the largest structural change in the package's history. Note that a single contributor drove essentially all of it.
◆ Prediction
Expect follow-up releases fixing edge cases in the new formatting and comment APIs — the cell-by-cell rewrite is too large to land clean, and the 2.0.0 notes already mention an off-by-one in date columns.
Alternatives to rredlist and writexl
Other Analytics products tracked by Sparkpulse, ranked by recent ship velocity. Each card links to a full editorial trajectory and lets you pivot into a head-to-head comparison with either rredlist or writexl.
rgbif
rgbif is steadily pushing users off paged searching and onto real downloads.
rstanarm
rstanarm is community-maintained now, tracking Stan and lme4 rather than adding models.
taxa
taxa started a ground-up rewrite in 2021 and has published almost nothing since.
rotl
rotl's whole release history is keeping name matching honest against a moving taxonomy.
taxize
taxize spends its releases absorbing other people's API changes, one dead source at a time.
See all rredlist alternatives → · See all writexl alternatives →
Recent activity from rredlist and writexl
Latest ship moves from both products, interleaved chronologically. ⚡ = editorial spark.
- 8d agowritexlwritexl 2.0.0 adds formatting, comments and full libxlsxwriter coverage ⚡
- 8d agowritexlwritexl 1.5.4 fixes a documentation typo
- 11mo agorredlistrredlist 1.1.1 extracts multiple assessment elements
- 1y agorredlistrredlist 1.1.0 adds bulk assessment retrieval and extraction
- 1y agorredlistrredlist 1.0.0 rebuilds on IUCN Red List API v4 ⚡
- 3y agorredlistrredlist 0.7.1 changes maintainer
- 5y agowritexlwritexl 1.4.0 updates libxlsxwriter to 1.0.3
- 5y agorredlistrredlist 0.7.0 adds vignette and HTTPS base URL
- 6y agorredlistrredlist 0.6.0 improves docs and NA handling
- 6y agowritexlwritexl 1.2 fixes NA in formulas and hyperlinks
- 7y agowritexlwritexl 1.1 fixes NA strings and bit64 coercion
- 8y agowritexlwritexl 1.0 writes Date values as datetimes
Frequently asked questions
What is the difference between rredlist and writexl?
They serve adjacent needs but don't currently overlap on shipped themes. writexl is currently shipping more aggressively (velocity 6.3 vs 0.0), with 1 editorial sparks in the last 30 days against 0. See the at-a-glance table above for a side-by-side breakdown of velocity, recent sparks, and editorial themes.
Is rredlist better than writexl?
Sparkpulse doesn't pick a winner — we score release velocity, not feature parity. writexl is currently shipping more aggressively (velocity 6.3 vs 0.0), with 1 editorial sparks in the last 30 days against 0. For your specific use case, the alternatives sections above list other Analytics products to evaluate alongside.
What are the best alternatives to rredlist?
Top rredlist alternatives in Analytics are ranked by recent ship velocity. Browse the "rredlist alternatives" section above for the current picks, or visit /alternatives/rredlist for the full list with editorial commentary on each.
What are the best alternatives to writexl?
Top writexl alternatives in Analytics are ranked by recent ship velocity. Browse the "writexl alternatives" section above for the current picks, or visit /alternatives/writexl for the full list with editorial commentary on each.