#19 of 19 · npm package

istanbul

istanbul is a npm package ranked #19 on the Most Downloaded Testing npm Packages chart with 3,384,329 downloads in the reported month.

Change: -23,195 downloads in the reported month between recorded observations on 2026-11-11 and 2026-11-12.

Last verified · 2026-11-12T11:57:30.629Z

License unknown or not specified in the source metadata. Do not assume permission to use, modify, or redistribute; check the source terms.

Metric source · method 1.0.0 · hash ef4a

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Recorded downloads in the reported month trend

30 dated observations · 2026-10-14 to 2026-11-12. Missing dates are not filled.

Metric definition: npm:downloads:last-month:v1

Observed range: 2,930,855 – 4,237,865 downloads in the reported month

View dated observations
Date (UTC)downloads in the reported month
2026-10-144,127,904
2026-10-154,127,904
2026-10-164,127,904
2026-10-174,127,904
2026-10-183,768,643
2026-10-193,768,643
2026-10-203,592,235
2026-10-213,592,235
2026-10-223,592,235
2026-10-233,592,235
2026-10-243,110,409
2026-10-253,110,409
2026-10-263,110,409
2026-10-274,237,865
2026-10-282,930,855
2026-10-292,976,382
2026-10-303,013,220
2026-10-313,060,050
2026-11-013,060,050
2026-11-023,060,050
2026-11-032,964,440
2026-11-043,007,327
2026-11-053,005,574
2026-11-063,165,379
2026-11-073,296,981
2026-11-083,183,929
2026-11-093,122,965
2026-11-103,354,115
2026-11-113,407,524
2026-11-123,384,329

Quick answers

What is istanbul?
istanbul is a npm package ranked #19 on the Most Downloaded Testing npm Packages chart with 3,384,329 downloads in the reported month.
What license applies to istanbul?
License unknown or not specified in the source metadata. Do not assume permission to use, modify, or redistribute; check the source terms.
How is istanbul ranked?
This chart orders entries by downloads in the reported month, not quality or suitability. Nearby entries share a chart, but are not necessarily substitutes. Method 1.0.0; snapshot hash ef4a.