Loading comparison…
Fetching the latest package data.
Fetching the latest package data.
2 of 5 packages selected.
2-package comparison
zod is the safest overall pick in this comparison
Measured metrics — each value links to its source.
| Signal | ajv | zod |
|---|---|---|
| Release cadence | 0 releases in last 90 days | 0 releases in last 90 days |
| Last release | 84 days ago | 74 days ago |
| Open issues | 282 open issues | 107 open issues |
| Bus factor | top contributor makes 86.77% of commits | top contributor makes 73.03% of commits |
| OpenSSF score | 5.4/10 | 5.1/10 |
| Vulnerabilities | 0 known vulnerabilities | 0 known vulnerabilities |
| Types | ships TypeScript types | ships TypeScript types |
Daily downloads aggregated to weekly sums (last 5 years).
| Week | ajv | zod |
|---|---|---|
| 2026-07-13 | 176,608,393 | 117,038,063 |
| 2026-07-06 | 250,995,472 | 205,184,407 |
| 2026-06-29 | 315,170,083 | 211,601,986 |
| 2026-06-22 | 321,843,432 | 209,687,743 |
| 2026-06-15 | 331,610,234 | 206,426,474 |
| 2026-06-08 | 320,754,224 | 194,821,686 |
| 2026-06-01 | 253,871,369 | 157,088,925 |
| 2026-05-25 | 290,096,050 | 179,575,332 |
| 2026-05-18 | 307,391,476 | 182,458,361 |
| 2026-05-11 | 305,597,714 | 144,292,770 |
| 2026-05-04 | 293,029,853 | 165,108,492 |
| 2026-04-27 | 290,670,363 | 161,634,416 |
| 2026-04-20 | 278,776,183 | 161,022,060 |
| 2026-04-13 | 267,411,201 | 158,866,859 |
| 2026-04-06 | 249,009,348 | 144,672,715 |
| 2026-03-30 | 249,495,279 | 139,023,184 |
| 2026-03-23 | 268,086,643 | 146,357,193 |
| 2026-03-16 | 280,924,123 | 126,521,655 |
| 2026-03-09 | 263,127,403 | 110,367,419 |
| 2026-03-02 | 259,851,034 | 106,750,412 |
| 2026-02-23 | 242,466,936 | 102,090,622 |
| 2026-02-16 | 209,246,745 | 90,883,480 |
| 2026-02-09 | 208,433,494 | 86,699,144 |
| 2026-02-02 | 231,192,497 | 91,346,628 |
| 2026-01-26 | 209,548,851 | 84,021,090 |
| 2026-01-19 | 203,017,838 | 84,769,953 |
| 2026-01-12 | 202,496,654 | 83,291,855 |
| 2026-01-05 | 171,201,570 | 67,068,821 |
| 2025-12-29 | 103,612,499 | 44,427,287 |
| 2025-12-22 | 99,708,608 | 41,592,150 |
| 2025-12-15 | 164,811,145 | 64,487,431 |
| 2025-12-08 | 172,448,832 | 64,654,339 |
| 2025-12-01 | 177,422,177 | 64,544,484 |
| 2025-11-24 | 167,226,616 | 59,295,509 |
| 2025-11-17 | 170,083,478 | 61,009,430 |
| 2025-11-10 | 161,385,476 | 55,101,454 |
| 2025-11-03 | 160,679,222 | 54,470,227 |
| 2025-10-27 | 159,676,014 | 53,320,947 |
| 2025-10-20 | 140,527,842 | 49,602,448 |
| 2025-10-13 | 157,944,195 | 48,844,448 |
| 2025-10-06 | 155,853,051 | 49,040,250 |
| 2025-09-29 | 151,753,055 | 47,725,494 |
| 2025-09-22 | 151,410,853 | 43,582,694 |
| 2025-09-15 | 152,943,336 | 46,352,255 |
| 2025-09-08 | 152,592,614 | 43,414,880 |
| 2025-09-01 | 143,927,631 | 41,208,938 |
| 2025-08-25 | 151,804,134 | 42,111,664 |
| 2025-08-18 | 145,089,163 | 40,224,592 |
| 2025-08-11 | 136,341,826 | 39,096,714 |
| 2025-08-04 | 140,713,078 | 39,347,166 |
| 2025-07-28 | 158,350,932 | 41,524,804 |
| 2025-07-21 | 143,748,348 | 39,005,845 |
| 2025-07-14 | 151,513,829 | 36,030,382 |
| 2025-07-07 | 157,751,587 | 35,052,289 |
| 2025-06-30 | 154,037,665 | 32,417,315 |
| 2025-06-23 | 179,294,199 | 33,688,040 |
| 2025-06-16 | 178,435,742 | 33,581,406 |
| 2025-06-09 | 154,684,247 | 32,858,076 |
| 2025-06-02 | 150,622,241 | 31,619,217 |
| 2025-05-26 | 137,113,558 | 29,166,505 |
| 2025-05-19 | 147,762,685 | 31,286,136 |
| 2025-05-12 | 141,231,070 | 31,007,161 |
| 2025-05-05 | 133,788,970 | 30,336,965 |
| 2025-04-28 | 122,696,394 | 25,274,135 |
| 2025-04-21 | 129,690,752 | 25,599,469 |
| 2025-04-14 | 125,806,064 | 24,995,661 |
| 2025-04-07 | 135,762,491 | 25,749,499 |
| 2025-03-31 | 136,101,220 | 25,625,555 |
| 2025-03-24 | 132,397,864 | 20,590,199 |
| 2025-03-17 | 130,853,467 | 20,416,029 |
| 2025-03-10 | 129,436,911 | 20,255,637 |
| 2025-03-03 | 126,104,732 | 19,297,687 |
| 2025-02-24 | 127,347,164 | 19,477,087 |
| 2025-02-17 | 124,454,743 | 18,787,380 |
| 2025-02-10 | 128,558,224 | 18,828,181 |
| 2025-02-03 | 133,866,908 | 17,684,263 |
| 2025-01-27 | 120,206,542 | 16,644,731 |
| 2025-01-20 | 117,709,751 | 16,167,189 |
| 2025-01-13 | 118,934,090 | 16,278,426 |
| 2025-01-06 | 112,008,002 | 14,931,536 |
| 2024-12-30 | 65,950,470 | 8,376,599 |
| 2024-12-23 | 58,848,003 | 7,423,864 |
| 2024-12-16 | 113,390,428 | 15,170,716 |
| 2024-12-09 | 117,904,857 | 15,106,772 |
| 2024-12-02 | 118,980,708 | 14,623,063 |
| 2024-11-25 | 121,032,004 | 13,097,915 |
| 2024-11-18 | 136,660,462 | 14,430,277 |
| 2024-11-11 | 124,549,333 | 13,305,097 |
| 2024-11-04 | 121,165,653 | 13,334,135 |
| 2024-10-28 | 109,936,457 | 13,185,403 |
| 2024-10-21 | 119,313,286 | 13,408,475 |
| 2024-10-14 | 113,000,557 | 12,950,846 |
| 2024-10-07 | 112,044,417 | 13,288,288 |
| 2024-09-30 | 107,369,097 | 12,290,647 |
| 2024-09-23 | 112,475,216 | 12,395,051 |
| 2024-09-16 | 109,046,743 | 11,986,255 |
| 2024-09-09 | 111,338,936 | 12,308,427 |
| 2024-09-02 | 105,363,310 | 11,287,280 |
| 2024-08-26 | 106,893,160 | 11,424,229 |
| 2024-08-19 | 104,419,653 | 11,162,490 |
| 2024-08-12 | 97,681,723 | 10,393,290 |
| 2024-08-05 | 103,500,010 | 10,771,194 |
| 2024-07-29 | 104,972,557 | 10,616,116 |
| 2024-07-22 | 105,262,158 | 10,213,430 |
| 2024-07-15 | 107,337,300 | 10,212,075 |
| 2024-07-08 | 105,583,399 | 10,122,526 |
| 2024-07-01 | 96,926,603 | 9,592,814 |
| 2024-06-24 | 103,229,476 | 10,074,752 |
| 2024-06-17 | 102,643,094 | 9,713,095 |
| 2024-06-10 | 104,744,184 | 10,095,067 |
| 2024-06-03 | 105,958,694 | 9,707,852 |
| 2024-05-27 | 100,473,638 | 9,219,144 |
| 2024-05-20 | 100,376,507 | 8,997,906 |
| 2024-05-13 | 103,193,416 | 9,375,170 |
| 2024-05-06 | 96,131,607 | 8,754,084 |
| 2024-04-29 | 92,694,117 | 8,403,827 |
| 2024-04-22 | 99,548,605 | 9,036,749 |
| 2024-04-15 | 101,352,635 | 8,552,764 |
| 2024-04-08 | 98,768,111 | 8,232,403 |
| 2024-04-01 | 96,100,435 | 7,762,442 |
| 2024-03-25 | 88,901,071 | 7,251,613 |
| 2024-03-18 | 103,577,448 | 8,139,874 |
| 2024-03-11 | 103,998,542 | 7,726,041 |
| 2024-03-04 | 103,593,729 | 7,494,130 |
| 2024-02-26 | 103,963,290 | 7,672,219 |
| 2024-02-19 | 99,089,137 | 7,166,102 |
| 2024-02-12 | 96,214,141 | 7,038,874 |
| 2024-02-05 | 98,888,516 | 7,086,946 |
| 2024-01-29 | 100,885,261 | 7,041,100 |
| 2024-01-22 | 97,765,722 | 6,677,113 |
| 2024-01-15 | 94,914,558 | 6,374,331 |
| 2024-01-08 | 93,969,035 | 6,192,360 |
| 2024-01-01 | 69,744,367 | 4,616,314 |
| 2023-12-25 | 48,152,796 | 2,976,675 |
| 2023-12-18 | 84,692,957 | 5,563,798 |
| 2023-12-11 | 95,099,786 | 6,145,043 |
| 2023-12-04 | 95,332,355 | 6,088,836 |
| 2023-11-27 | 98,023,700 | 6,202,156 |
| 2023-11-20 | 90,649,796 | 5,403,377 |
| 2023-11-13 | 96,623,341 | 6,031,886 |
| 2023-11-06 | 98,395,644 | 6,157,147 |
| 2023-10-30 | 68,018,493 | 4,274,568 |
| 2023-10-23 | 96,365,341 | 6,092,483 |
| 2023-10-16 | 98,350,297 | 6,169,449 |
| 2023-10-09 | 91,974,037 | 5,726,179 |
| 2023-10-02 | 91,889,835 | 6,010,339 |
| 2023-09-25 | 95,220,330 | 6,272,607 |
| 2023-09-18 | 95,383,542 | 6,203,748 |
| 2023-09-11 | 95,516,011 | 6,336,472 |
| 2023-09-04 | 90,137,641 | 5,734,032 |
| 2023-08-28 | 92,187,911 | 5,695,926 |
| 2023-08-21 | 93,707,510 | 5,695,385 |
| 2023-08-14 | 87,203,585 | 5,373,008 |
| 2023-08-07 | 91,291,181 | 5,074,028 |
| 2023-07-31 | 91,948,869 | 5,173,498 |
| 2023-07-24 | 92,123,664 | 4,983,146 |
| 2023-07-17 | 92,579,758 | 4,809,587 |
| 2023-07-10 | 93,735,875 | 4,735,168 |
| 2023-07-03 | 85,945,179 | 4,220,099 |
| 2023-06-26 | 89,620,374 | 4,461,794 |
| 2023-06-19 | 90,452,804 | 4,278,448 |
| 2023-06-12 | 94,233,783 | 4,332,670 |
| 2023-06-05 | 91,367,180 | 4,061,982 |
| 2023-05-29 | 86,825,338 | 3,720,123 |
| 2023-05-22 | 90,120,233 | 3,717,740 |
| 2023-05-15 | 89,700,496 | 3,474,191 |
| 2023-05-08 | 89,791,074 | 3,366,913 |
| 2023-05-01 | 83,114,006 | 2,728,391 |
| 2023-04-24 | 91,741,987 | 2,766,015 |
| 2023-04-17 | 90,215,316 | 2,603,135 |
| 2023-04-10 | 84,701,021 | 2,469,076 |
| 2023-04-03 | 83,312,760 | 2,334,724 |
| 2023-03-27 | 92,994,887 | 2,499,480 |
| 2023-03-20 | 91,606,444 | 2,452,113 |
| 2023-03-13 | 92,052,135 | 2,430,229 |
| 2023-03-06 | 89,199,753 | 2,337,922 |
| 2023-02-27 | 91,091,586 | 2,212,905 |
| 2023-02-20 | 88,535,063 | 2,075,035 |
| 2023-02-13 | 90,689,742 | 2,119,214 |
| 2023-02-06 | 92,694,316 | 2,089,502 |
| 2023-01-30 | 92,267,712 | 1,910,712 |
| 2023-01-23 | 85,819,195 | 1,731,307 |
| 2023-01-16 | 84,571,695 | 1,595,624 |
| 2023-01-09 | 86,969,705 | 1,631,316 |
| 2023-01-02 | 70,596,068 | 1,279,122 |
| 2022-12-26 | 47,119,083 | 782,418 |
| 2022-12-19 | 71,991,603 | 1,237,090 |
| 2022-12-12 | 84,490,671 | 1,436,756 |
| 2022-12-05 | 85,450,118 | 1,379,682 |
| 2022-11-28 | 85,739,764 | 1,381,898 |
| 2022-11-21 | 78,015,917 | 1,225,902 |
| 2022-11-14 | 88,555,511 | 1,405,533 |
| 2022-11-07 | 82,554,575 | 1,328,275 |
| 2022-10-31 | 79,142,149 | 1,250,186 |
| 2022-10-24 | 80,246,529 | 1,273,155 |
| 2022-10-17 | 80,562,174 | 1,224,276 |
| 2022-10-10 | 77,013,392 | 1,177,622 |
| 2022-10-03 | 75,540,187 | 1,160,503 |
| 2022-09-26 | 78,311,938 | 1,149,265 |
| 2022-09-19 | 75,886,363 | 1,057,014 |
| 2022-09-12 | 77,924,783 | 1,110,403 |
| 2022-09-05 | 73,061,004 | 972,890 |
| 2022-08-29 | 74,624,656 | 990,928 |
| 2022-08-22 | 75,601,131 | 932,390 |
| 2022-08-15 | 73,648,539 | 979,537 |
| 2022-08-08 | 74,255,506 | 917,684 |
| 2022-08-01 | 74,549,731 | 812,876 |
| 2022-07-25 | 74,484,063 | 766,516 |
| 2022-07-18 | 61,487,903 | 644,430 |
| 2022-07-11 | 70,034,664 | 719,939 |
| 2022-07-04 | 66,305,676 | 672,873 |
| 2022-06-27 | 70,707,641 | 699,851 |
| 2022-06-20 | 69,222,460 | 626,312 |
| 2022-06-13 | 68,574,369 | 673,202 |
| 2022-06-06 | 68,342,338 | 659,377 |
| 2022-05-30 | 67,251,476 | 644,544 |
| 2022-05-23 | 66,402,220 | 665,883 |
| 2022-05-16 | 69,540,653 | 662,305 |
| 2022-05-09 | 67,165,181 | 677,566 |
| 2022-05-02 | 60,800,857 | 638,891 |
| 2022-04-25 | 67,761,609 | 693,750 |
| 2022-04-18 | 62,896,097 | 637,714 |
| 2022-04-11 | 63,859,200 | 646,387 |
| 2022-04-04 | 69,493,765 | 677,290 |
| 2022-03-28 | 72,845,571 | 634,801 |
| 2022-03-21 | 70,997,699 | 613,233 |
| 2022-03-14 | 68,801,424 | 572,384 |
| 2022-03-07 | 68,152,245 | 543,336 |
| 2022-02-28 | 67,584,269 | 549,855 |
| 2022-02-21 | 66,216,003 | 517,015 |
| 2022-02-14 | 70,348,104 | 525,167 |
| 2022-02-07 | 71,273,287 | 522,913 |
| 2022-01-31 | 66,742,492 | 498,665 |
| 2022-01-24 | 65,420,862 | 479,060 |
| 2022-01-17 | 63,722,776 | 447,171 |
| 2022-01-10 | 62,291,434 | 425,842 |
| 2022-01-03 | 52,127,615 | 367,433 |
| 2021-12-27 | 34,474,651 | 247,344 |
| 2021-12-20 | 46,886,771 | 242,229 |
| 2021-12-13 | 58,987,733 | 266,683 |
| 2021-12-06 | 56,335,911 | 269,804 |
| 2021-11-29 | 56,632,928 | 257,355 |
| 2021-11-22 | 50,467,825 | 224,628 |
| 2021-11-15 | 55,391,876 | 241,739 |
| 2021-11-08 | 53,959,636 | 231,530 |
| 2021-11-01 | 52,336,909 | 223,955 |
| 2021-10-25 | 55,332,472 | 227,584 |
| 2021-10-18 | 54,745,281 | 230,996 |
| 2021-10-11 | 52,676,562 | 206,433 |
| 2021-10-04 | 53,206,887 | 185,315 |
| 2021-09-27 | 52,662,048 | 189,773 |
| 2021-09-20 | 51,476,712 | 172,006 |
| 2021-09-13 | 51,065,460 | 163,567 |
| 2021-09-06 | 47,323,708 | 151,646 |
| 2021-08-30 | 49,496,715 | 143,915 |
| 2021-08-23 | 48,375,096 | 138,845 |
| 2021-08-16 | 47,066,901 | 132,750 |
| 2021-08-09 | 46,864,610 | 125,540 |
| 2021-08-02 | 46,868,939 | 122,709 |
| 2021-07-26 | 47,301,489 | 121,997 |
| 2021-07-19 | 46,165,291 | 111,633 |
| 2021-07-12 | 2,302,135 | 4,788 |