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2 of 5 packages selected.
2-package comparison
mocha is the safest overall pick in this comparison
Measured metrics — each value links to its source.
| Signal | storybook | mocha |
|---|---|---|
| Release cadence | 0 releases in last 90 days | 0 releases in last 90 days |
| Last release | 10 days ago | 1 days ago |
| Open issues | 1582 open issues | 195 open issues |
| Bus factor | top contributor makes 21.73% of commits | top contributor makes 34.26% of commits |
| Commit activity | 3581 commits in the last 90 days | 119 commits in the last 90 days |
| Pull request activity | 20 PRs opened in the last 90 days | 20 PRs opened in the last 90 days |
| OpenSSF score | 7.2/10 | 7.3/10 |
| Vulnerabilities | 0 known vulnerabilities | 0 known vulnerabilities |
| Types |
Daily downloads aggregated to weekly sums (last 5 years).
| Week | storybook | mocha |
|---|---|---|
| 2026-08-31 | 2,759,867 | 2,343,749 |
| 2026-08-24 | 10,952,624 | 7,635,581 |
| 2026-08-17 | 0 | 0 |
| 2026-08-10 | 0 | 0 |
| 2026-08-03 | 0 | 0 |
| 2026-07-27 | 9,912,509 | 2,105,327 |
| 2026-07-20 | 20,049,801 | 1,939,717 |
| 2026-07-13 | 19,141,766 | 9,293,742 |
| 2026-07-06 | 17,918,640 | 12,400,292 |
| 2026-06-29 | 16,967,619 | 12,653,464 |
| 2026-06-22 | 17,995,772 | 14,033,599 |
| 2026-06-15 | 17,922,959 | 14,195,437 |
| 2026-06-08 | 17,710,864 | 14,156,930 |
| 2026-06-01 | 14,274,840 | 11,042,667 |
| 2026-05-25 | 15,748,579 | 13,031,398 |
| 2026-05-18 | 17,042,606 | 13,660,956 |
| 2026-05-11 | 13,582,034 | 14,236,518 |
| 2026-05-04 | 15,888,883 | 13,940,768 |
| 2026-04-27 | 14,650,826 | 13,428,714 |
| 2026-04-20 | 14,602,352 | 13,469,758 |
| 2026-04-13 | 14,249,329 | 13,142,039 |
| 2026-04-06 | 13,463,229 | 13,694,668 |
| 2026-03-30 | 12,933,592 | 13,621,725 |
| 2026-03-23 | 13,569,255 | 14,115,199 |
| 2026-03-16 | 13,085,690 | 13,893,269 |
| 2026-03-09 | 13,285,229 | 14,374,648 |
| 2026-03-02 | 12,893,191 | 14,012,995 |
| 2026-02-23 | 12,462,148 | 13,178,970 |
| 2026-02-16 | 11,117,676 | 12,508,894 |
| 2026-02-09 | 11,610,421 | 12,490,372 |
| 2026-02-02 | 11,491,124 | 12,116,511 |
| 2026-01-26 | 10,960,429 | 11,822,315 |
| 2026-01-19 | 10,238,008 | 11,064,013 |
| 2026-01-12 | 9,937,200 | 10,988,217 |
| 2026-01-05 | 8,982,937 | 10,047,326 |
| 2025-12-29 | 3,963,191 | 5,963,319 |
| 2025-12-22 | 4,635,528 | 6,277,188 |
| 2025-12-15 | 9,346,131 | 11,274,462 |
| 2025-12-08 | 9,405,687 | 11,864,603 |
| 2025-12-01 | 9,395,881 | 12,580,955 |
| 2025-11-24 | 8,061,294 | 14,593,239 |
| 2025-11-17 | 8,997,417 | 12,461,796 |
| 2025-11-10 | 8,672,158 | 11,476,435 |
| 2025-11-03 | 8,685,349 | 11,577,894 |
| 2025-10-27 | 8,526,325 | 11,387,125 |
| 2025-10-20 | 8,394,350 | 14,233,773 |
| 2025-10-13 | 8,026,118 | 12,583,314 |
| 2025-10-06 | 7,993,416 | 11,611,813 |
| 2025-09-29 | 7,946,062 | 12,073,827 |
| 2025-09-22 | 7,737,161 | 11,800,540 |
| 2025-09-15 | 7,691,105 | 11,679,980 |
| 2025-09-08 | 7,691,161 | 11,803,374 |
| 2025-09-01 | 7,113,868 | 10,626,915 |
| 2025-08-25 | 7,277,163 | 12,173,689 |
| 2025-08-18 | 7,364,985 | 11,255,040 |
| 2025-08-11 | 7,023,252 | 9,838,890 |
| 2025-08-04 | 7,214,657 | 10,009,556 |
| 2025-07-28 | 7,265,122 | 13,469,493 |
| 2025-07-21 | 7,063,572 | 10,834,841 |
| 2025-07-14 | 6,901,540 | 12,733,989 |
| 2025-07-07 | 7,043,628 | 13,473,766 |
| 2025-06-30 | 6,672,522 | 13,689,551 |
| 2025-06-23 | 7,160,318 | 16,214,811 |
| 2025-06-16 | 7,001,204 | 16,572,605 |
| 2025-06-09 | 6,753,924 | 14,263,293 |
| 2025-06-02 | 6,871,699 | 13,684,292 |
| 2025-05-26 | 6,249,385 | 11,894,866 |
| 2025-05-19 | 6,705,055 | 11,254,442 |
| 2025-05-12 | 6,456,007 | 10,397,545 |
| 2025-05-05 | 5,917,559 | 10,160,873 |
| 2025-04-28 | 5,551,293 | 9,566,437 |
| 2025-04-21 | 5,862,238 | 9,762,348 |
| 2025-04-14 | 5,908,998 | 9,280,802 |
| 2025-04-07 | 6,189,667 | 10,367,581 |
| 2025-03-31 | 6,127,923 | 10,025,878 |
| 2025-03-24 | 6,391,333 | 9,783,029 |
| 2025-03-17 | 6,076,358 | 9,938,882 |
| 2025-03-10 | 6,020,465 | 9,613,008 |
| 2025-03-03 | 5,736,932 | 9,237,119 |
| 2025-02-24 | 5,787,275 | 9,144,160 |
| 2025-02-17 | 5,569,774 | 8,808,792 |
| 2025-02-10 | 5,681,180 | 9,284,044 |
| 2025-02-03 | 5,476,936 | 9,201,135 |
| 2025-01-27 | 5,147,732 | 8,564,250 |
| 2025-01-20 | 5,055,622 | 8,399,549 |
| 2025-01-13 | 5,020,616 | 8,320,514 |
| 2025-01-06 | 4,577,926 | 8,466,802 |
| 2024-12-30 | 2,148,187 | 5,758,458 |
| 2024-12-23 | 1,935,333 | 4,330,582 |
| 2024-12-16 | 4,596,664 | 8,038,256 |
| 2024-12-09 | 4,917,336 | 8,542,573 |
| 2024-12-02 | 4,944,355 | 9,119,306 |
| 2024-11-25 | 4,421,102 | 11,900,323 |
| 2024-11-18 | 4,937,327 | 14,239,002 |
| 2024-11-11 | 4,515,711 | 12,471,705 |
| 2024-11-04 | 4,604,767 | 10,601,556 |
| 2024-10-28 | 4,499,607 | 8,150,007 |
| 2024-10-21 | 4,579,580 | 9,366,711 |
| 2024-10-14 | 4,293,391 | 8,658,874 |
| 2024-10-07 | 4,385,271 | 8,131,779 |
| 2024-09-30 | 4,205,328 | 7,785,549 |
| 2024-09-23 | 4,354,704 | 8,046,689 |
| 2024-09-16 | 4,252,596 | 8,001,015 |
| 2024-09-09 | 4,329,301 | 8,096,854 |
| 2024-09-02 | 3,997,661 | 7,794,785 |
| 2024-08-26 | 4,048,718 | 8,047,701 |
| 2024-08-19 | 3,910,476 | 7,827,917 |
| 2024-08-12 | 3,640,503 | 7,336,304 |
| 2024-08-05 | 3,867,444 | 7,781,135 |
| 2024-07-29 | 3,878,298 | 7,848,885 |
| 2024-07-22 | 3,778,766 | 7,929,647 |
| 2024-07-15 | 3,666,816 | 8,406,169 |
| 2024-07-08 | 3,631,820 | 8,064,934 |
| 2024-07-01 | 3,231,452 | 7,235,197 |
| 2024-06-24 | 3,578,955 | 7,619,815 |
| 2024-06-17 | 3,430,420 | 7,625,413 |
| 2024-06-10 | 3,505,710 | 7,860,196 |
| 2024-06-03 | 3,492,884 | 8,039,279 |
| 2024-05-27 | 3,246,787 | 7,516,891 |
| 2024-05-20 | 3,287,097 | 7,478,283 |
| 2024-05-13 | 3,316,776 | 7,732,109 |
| 2024-05-06 | 3,032,940 | 7,364,790 |
| 2024-04-29 | 2,925,764 | 7,117,310 |
| 2024-04-22 | 3,213,936 | 7,722,616 |
| 2024-04-15 | 3,219,159 | 7,756,097 |
| 2024-04-08 | 3,143,965 | 7,615,057 |
| 2024-04-01 | 2,970,666 | 7,385,749 |
| 2024-03-25 | 2,762,084 | 6,704,213 |
| 2024-03-18 | 3,226,661 | 7,595,797 |
| 2024-03-11 | 3,210,537 | 7,745,755 |
| 2024-03-04 | 3,189,586 | 7,664,256 |
| 2024-02-26 | 3,134,517 | 7,493,624 |
| 2024-02-19 | 3,009,249 | 7,397,635 |
| 2024-02-12 | 2,939,380 | 7,302,908 |
| 2024-02-05 | 2,892,269 | 7,516,343 |
| 2024-01-29 | 2,922,337 | 7,452,933 |
| 2024-01-22 | 2,761,232 | 7,355,175 |
| 2024-01-15 | 2,674,677 | 7,141,333 |
| 2024-01-08 | 2,569,589 | 7,307,399 |
| 2024-01-01 | 1,785,297 | 6,181,139 |
| 2023-12-25 | 996,850 | 3,814,480 |
| 2023-12-18 | 2,251,268 | 6,627,390 |
| 2023-12-11 | 2,521,645 | 7,664,239 |
| 2023-12-04 | 2,580,461 | 7,672,201 |
| 2023-11-27 | 2,576,395 | 7,707,476 |
| 2023-11-20 | 2,172,808 | 6,856,364 |
| 2023-11-13 | 2,452,210 | 7,435,650 |
| 2023-11-06 | 2,505,899 | 7,637,452 |
| 2023-10-30 | 1,645,913 | 5,309,534 |
| 2023-10-23 | 2,341,516 | 7,692,494 |
| 2023-10-16 | 2,341,368 | 7,843,916 |
| 2023-10-09 | 2,109,313 | 7,403,264 |
| 2023-10-02 | 2,376,654 | 7,139,177 |
| 2023-09-25 | 2,363,529 | 7,646,455 |
| 2023-09-18 | 2,341,272 | 7,491,067 |
| 2023-09-11 | 2,194,672 | 7,787,410 |
| 2023-09-04 | 1,896,646 | 7,558,116 |
| 2023-08-28 | 1,921,387 | 7,319,655 |
| 2023-08-21 | 1,915,923 | 7,388,761 |
| 2023-08-14 | 1,828,075 | 6,910,394 |
| 2023-08-07 | 1,813,806 | 7,104,359 |
| 2023-07-31 | 1,817,576 | 7,313,229 |
| 2023-07-24 | 1,728,956 | 7,194,691 |
| 2023-07-17 | 1,701,335 | 7,170,245 |
| 2023-07-10 | 1,663,615 | 7,312,331 |
| 2023-07-03 | 1,498,149 | 6,601,476 |
| 2023-06-26 | 1,512,765 | 7,062,139 |
| 2023-06-19 | 1,413,031 | 7,043,735 |
| 2023-06-12 | 1,358,506 | 7,104,228 |
| 2023-06-05 | 1,279,320 | 6,977,251 |
| 2023-05-29 | 1,177,399 | 6,661,839 |
| 2023-05-22 | 1,223,297 | 6,939,861 |
| 2023-05-15 | 1,097,021 | 7,026,399 |
| 2023-05-08 | 997,840 | 6,976,869 |
| 2023-05-01 | 787,820 | 6,948,905 |
| 2023-04-24 | 829,124 | 7,342,463 |
| 2023-04-17 | 725,322 | 7,291,588 |
| 2023-04-10 | 590,806 | 7,591,568 |
| 2023-04-03 | 512,470 | 7,401,145 |
| 2023-03-27 | 503,769 | 7,811,663 |
| 2023-03-20 | 459,192 | 7,387,668 |
| 2023-03-13 | 435,936 | 7,344,655 |
| 2023-03-06 | 411,605 | 7,320,126 |
| 2023-02-27 | 409,789 | 7,950,496 |
| 2023-02-20 | 376,165 | 7,632,203 |
| 2023-02-13 | 357,679 | 7,830,421 |
| 2023-02-06 | 349,260 | 7,954,329 |
| 2023-01-30 | 338,730 | 8,033,880 |
| 2023-01-23 | 297,359 | 7,349,507 |
| 2023-01-16 | 271,266 | 7,044,185 |
| 2023-01-09 | 281,913 | 7,498,763 |
| 2023-01-02 | 222,057 | 6,076,574 |
| 2022-12-26 | 105,666 | 4,174,671 |
| 2022-12-19 | 211,381 | 6,008,175 |
| 2022-12-12 | 252,168 | 7,099,465 |
| 2022-12-05 | 245,536 | 7,244,909 |
| 2022-11-28 | 221,626 | 7,621,192 |
| 2022-11-21 | 183,993 | 6,772,240 |
| 2022-11-14 | 238,008 | 7,736,288 |
| 2022-11-07 | 207,767 | 7,681,270 |
| 2022-10-31 | 189,462 | 8,111,021 |
| 2022-10-24 | 200,495 | 7,309,248 |
| 2022-10-17 | 181,326 | 7,487,846 |
| 2022-10-10 | 179,139 | 7,060,299 |
| 2022-10-03 | 175,918 | 6,806,930 |
| 2022-09-26 | 172,126 | 7,237,701 |
| 2022-09-19 | 174,224 | 7,289,542 |
| 2022-09-12 | 188,839 | 7,151,248 |
| 2022-09-05 | 161,302 | 6,681,243 |
| 2022-08-29 | 161,424 | 6,800,536 |
| 2022-08-22 | 170,255 | 6,792,043 |
| 2022-08-15 | 154,370 | 6,496,672 |
| 2022-08-08 | 161,900 | 6,383,070 |
| 2022-08-01 | 169,209 | 6,665,766 |
| 2022-07-25 | 152,434 | 6,689,285 |
| 2022-07-18 | 113,642 | 5,680,624 |
| 2022-07-11 | 135,593 | 6,695,719 |
| 2022-07-04 | 123,502 | 6,367,499 |
| 2022-06-27 | 130,401 | 6,578,139 |
| 2022-06-20 | 135,468 | 6,455,448 |
| 2022-06-13 | 133,537 | 6,492,681 |
| 2022-06-06 | 130,152 | 6,544,996 |
| 2022-05-30 | 120,036 | 6,408,408 |
| 2022-05-23 | 125,491 | 6,403,912 |
| 2022-05-16 | 133,040 | 6,634,565 |
| 2022-05-09 | 123,578 | 6,498,858 |
| 2022-05-02 | 112,411 | 5,864,168 |
| 2022-04-25 | 116,119 | 6,632,624 |
| 2022-04-18 | 110,651 | 6,660,766 |
| 2022-04-11 | 108,396 | 6,853,183 |
| 2022-04-04 | 120,573 | 6,690,763 |
| 2022-03-28 | 113,657 | 6,807,991 |
| 2022-03-21 | 117,812 | 6,525,924 |
| 2022-03-14 | 112,414 | 6,437,107 |
| 2022-03-07 | 107,141 | 6,440,908 |
| 2022-02-28 | 110,247 | 6,385,698 |
| 2022-02-21 | 107,005 | 6,194,053 |
| 2022-02-14 | 115,577 | 6,415,310 |
| 2022-02-07 | 110,897 | 6,517,813 |
| 2022-01-31 | 107,227 | 6,225,029 |
| 2022-01-24 | 101,527 | 6,240,540 |
| 2022-01-17 | 96,645 | 5,913,673 |
| 2022-01-10 | 90,551 | 5,712,259 |
| 2022-01-03 | 71,436 | 4,801,755 |
| 2021-12-27 | 33,978 | 3,094,992 |
| 2021-12-20 | 58,711 | 4,250,959 |
| 2021-12-13 | 93,929 | 5,385,646 |
| 2021-12-06 | 93,526 | 5,425,400 |
| 2021-11-29 | 99,248 | 5,560,263 |
| 2021-11-22 | 77,484 | 4,954,718 |
| 2021-11-15 | 96,806 | 5,603,333 |
| 2021-11-08 | 89,519 | 5,500,870 |
| 2021-11-01 | 87,594 | 5,239,791 |
| 2021-10-25 | 92,297 | 5,463,876 |
| 2021-10-18 | 92,502 | 5,588,526 |
| 2021-10-11 | 91,950 | 5,227,498 |
| 2021-10-04 | 95,199 | 5,475,036 |
| 2021-09-27 | 91,378 | 5,506,329 |
| 2021-09-20 | 93,890 | 5,448,694 |
| 2021-09-13 | 92,540 | 5,429,441 |
| ships TypeScript types |