Download (.csv)
Generated:3/28/2025, 9:11:27 AM
  • Matching✅
  • Missing❌
  • Mismatch️🩹
  • Mock🥸

Notes

  • All percentages in the table represent whether the shape of the API matches against the baseline.They are not a calculation of implementation compliance.
  • The percentages represent the API surface area that is matching, mocked, or mismatched.
  • The baseline column represents a union of Node.js v18, v20, and v22 API surfaces that we use as the ideal Node.js API compatibility target.
  • Mock means that the API can still be imported but it is not implemented. It will throw an error or return an dummy value if called.
  • These values have been autogenerated and may not be 100% accurate.
API
baseline
22+20+18
node
22.14.0
node
20.19.0
node
18.20.8
bun
1.2.7
deno
2.2.6
workerd
1.20250327.0
nodejs_compat
wrangler
4.5.1
nodejs_compat
Totalsmissing / mismatched / mocked
100%
10799
98.9%
1.1%/0%/0%
97.5%
2.5%/0.0%/0%
94.7%
5.3%/0.1%/0%
81.6%
18.4%/0.5%/0%
72.4%
27.6%/0.3%/0.7%
37.8%
62.2%/0.2%/0%
76.8%
23.2%/1.7%/7.9%
__*globals*▶
2391
99.7%
0.3%/0%/0%
96.7%
3.3%/0%/0%
91.5%
8.5%/0%/0%
79.4%
20.6%/0.3%/0%
46.0%
54.0%/0.3%/0%
51.4%
48.6%/0%/0%
73.7%
26.3%/3.3%/0.6%
___http_agent▶
91
100%
0%/0%/0%
100%
0%/0%/0%
96.7%
3.3%/0%/0%
94.5%
5.5%/2.2%/0%
95.6%
4.4%/0%/0%
0%
100%/0%/0%
47.3%
52.7%/2.2%/44.0%
___http_client▶
4
100%
0%/0%/0%
100%
0%/0%/0%
100%
0%/0%/0%
100%
0%/0%/0%
0%
100%/0%/0%
0%
100%/0%/0%
75.0%
25.0%/25.0%/25.0%
___http_common▶
94
100%
0%/0%/0%
100%
0%/0%/0%
95.7%
4.3%/0%/0%
2.1%
97.9%/0%/0%
78.7%
21.3%/0%/0%
0%
100%/0%/0%
51.1%
48.9%/4.3%/45.7%
___http_incoming▶
8
100%
0%/0%/0%
100%
0%/0%/0%
100%
0%/0%/0%
50.0%
50.0%/0%/0%
0%
100%/0%/0%
0%
100%/0%/0%
62.5%
37.5%/12.5%/37.5%
___http_outgoing▶
14
100%
0%/0%/0%
100%
0%/0%/0%
100%
0%/0%/0%
57.1%
42.9%/0%/0%
100%
0%/0%/0%
0%
100%/0%/0%
57.1%
42.9%/7.1%/42.9%
___http_server▶
146
100%
0%/0%/0%
100%
0%/0%/0%
100%
0%/0%/0%
91.8%
8.2%/0%/0%
87.7%
12.3%/0%/0%
0%
100%/0%/0%
50.7%
49.3%/1.4%/48.6%
___stream_duplex▶
131
99.2%
0.8%/0%/0%
100%
0%/0%/0%
98.5%
1.5%/0%/0%
96.9%
3.1%/0%/0%
93.9%
6.1%/0%/0%
100%
0%/3.8%/0%
100%
0%/3.8%/0%
___stream_passthrough▶
130
99.2%
0.8%/0%/0%
100%
0%/0%/0%
98.5%
1.5%/0%/0%
96.9%
3.1%/0%/0%
93.8%
6.2%/0%/0%
100%
0%/3.8%/0%
100%
0%/3.8%/0%
___stream_readable▶
118
99.2%
0.8%/0%/0%
100%
0%/0%/0%
98.3%
1.7%/0%/0%
96.6%
3.4%/0%/0%
93.2%
6.8%/0%/0%
99.2%
0.8%/4.2%/0%
99.2%
0.8%/4.2%/0%
___stream_transform▶
130
99.2%
0.8%/0%/0%
100%
0%/0%/0%
98.5%
1.5%/0%/0%
96.9%
3.1%/0%/0%
93.8%
6.2%/0%/0%
100%
0%/3.8%/0%
100%
0%/3.8%/0%
___stream_wrap▶
168
99.4%
0.6%/0%/0%
100%
0%/0%/0%
98.2%
1.8%/0%/0%
37.5%
62.5%/0%/0%
0%
100%/0%/0%
0%
100%/0%/0%
100%
0%/1.2%/97.6%
___stream_writable▶
95
100%
0%/0%/0%
100%
0%/0%/0%
97.9%
2.1%/0%/0%
96.8%
3.2%/0%/0%
92.6%
7.4%/0%/0%
100%
0%/0%/0%
100%
0%/0%/0%
___tls_common▶
8
100%
0%/0%/0%
100%
0%/0%/0%
100%
0%/0%/0%
50.0%
50.0%/0%/0%
50.0%
50.0%/0%/0%
100%
0%/0%/0%
62.5%
37.5%/12.5%/37.5%
___tls_wrap▶
10
100%
0%/0%/0%
100%
0%/0%/0%
100%
0%/0%/0%
100%
0%/0%/0%
100%
0%/0%/0%
60.0%
40.0%/0%/0%
60.0%
40.0%/10.0%/40.0%
__assert▶
47
100%
0%/0%/0%
95.7%
4.3%/0%/0%
95.7%
4.3%/0%/0%
97.9%
2.1%/0%/0%
91.5%
8.5%/0%/0%
91.5%
8.5%/0%/0%
91.5%
8.5%/0%/0%
__assert/strict▶
47
100%
0%/0%/0%
95.7%
4.3%/0%/0%
95.7%
4.3%/0%/0%
97.9%
2.1%/0%/0%
91.5%
8.5%/0%/0%
91.5%
8.5%/0%/0%
91.5%
8.5%/0%/0%
__async_hooks▶
144
98.6%
1.4%/0%/0%
93.1%
6.9%/0%/0%
93.1%
6.9%/0%/0%
90.3%
9.7%/0%/0%
98.6%
1.4%/0%/0%
12.5%
87.5%/0%/0%
98.6%
1.4%/0%/0%
__buffer▶
34
100%
0%/0%/0%
100%
0%/0%/0%
100%
0%/0%/0%
100%
0%/8.8%/0%
88.2%
11.8%/0%/0%
100%
0%/0%/0%
100%
0%/0%/0%
__child_process▶
20
100%
0%/0%/0%
100%
0%/0%/0%
100%
0%/0%/0%
90.0%
10.0%/0%/0%
90.0%
10.0%/0%/0%
0%
100%/0%/0%
100%
0%/0%/80.0%
__cluster▶
49
100%
0%/0%/0%
100%
0%/0%/0%
100%
0%/0%/0%
100%
0%/0%/0%
91.8%
8.2%/2.0%/20.4%
0%
100%/0%/0%
100%
0%/2.0%/8.2%
__console▶
311
99.4%
0.6%/0%/0%
100%
0%/0%/0%
99.4%
0.6%/0%/0%
47.6%
52.4%/0.6%/0%
45.3%
54.7%/0.6%/0%
0%
100%/0%/0%
48.9%
51.1%/0.6%/0.6%
__constants▶
502
93.2%
6.8%/0%/0%
93.2%
6.8%/0%/0%
99.2%
0.8%/0%/0%
84.1%
15.9%/0%/0%
98.6%
1.4%/0%/0%
0%
100%/0%/0%
92.0%
8.0%/0%/0%
__crypto▶
333
88.3%
11.7%/0%/0%
88.9%
11.1%/1.2%/0%
99.4%
0.6%/1.2%/0%
96.7%
3.3%/0%/0%
96.4%
3.6%/0.6%/5.4%
61.3%
38.7%/0.3%/0%
88.9%
11.1%/2.1%/0.9%
__dgram▶
8
100%
0%/0%/0%
100%
0%/0%/0%
100%
0%/0%/0%
75.0%
25.0%/0%/0%
75.0%
25.0%/0%/0%
0%
100%/0%/0%
100%
0%/0%/25.0%
__diagnostics_channel▶
14
100%
0%/0%/0%
100%
0%/0%/0%
100%
0%/0%/0%
100%
0%/0%/0%
92.9%
7.1%/0%/0%
100%
0%/0%/0%
100%
0%/0%/0%
__dns▶
190
100%
0%/0%/0%
100%
0%/0%/0%
100%
0%/0%/0%
97.9%
2.1%/0%/0%
95.8%
4.2%/0%/0%
100%
0%/0%/0%
100%
0%/0%/0%
__dns/promises▶
92
100%
0%/0%/0%
100%
0%/0%/0%
100%
0%/0%/0%
95.7%
4.3%/0%/0%
95.7%
4.3%/0%/0%
100%
0%/0%/0%
100%
0%/0%/0%
__domain▶
12
100%
0%/0%/0%
100%
0%/0%/0%
100%
0%/0%/0%
50.0%
50.0%/0%/0%
100%
0%/0%/0%
0%
100%/0%/0%
100%
0%/16.7%/0%
__events▶
55
100%
0%/0%/0%
100%
0%/0%/0%
100%
0%/0%/0%
94.5%
5.5%/0%/0%
89.1%
10.9%/1.8%/0%
96.4%
3.6%/0%/0%
96.4%
3.6%/0%/0%
__fs▶
449
100%
0%/0%/0%
98.7%
1.3%/0%/0%
96.9%
3.1%/0%/0%
100%
0%/0.9%/0%
92.4%
7.6%/0%/0.4%
0%
100%/0%/0%
99.3%
0.7%/0%/41.9%
__fs/promises▶
180
100%
0%/0%/0%
98.9%
1.1%/0%/0%
96.7%
3.3%/0%/0%
100%
0%/0%/0%
93.9%
6.1%/0%/0%
0%
100%/0%/0%
98.9%
1.1%/0%/34.4%
__http▶
253
100%
0%/0%/0%
97.6%
2.4%/0%/0%
96.4%
3.6%/0%/0%
97.2%
2.8%/0.8%/0%
93.7%
6.3%/0%/0.8%
0%
100%/0%/0%
86.2%
13.8%/0%/5.5%
__http2▶
530
100%
0%/0%/0%
100%
0%/0%/0%
99.6%
0.4%/0%/0%
94.7%
5.3%/0%/0%
95.5%
4.5%/0%/1.5%
0%
100%/0%/0%
95.1%
4.9%/0%/1.5%
__https▶
113
100%
0%/0%/0%
100%
0%/0%/0%
97.3%
2.7%/0%/0%
87.6%
12.4%/3.5%/0%
92.0%
8.0%/0%/1.8%
0%
100%/0%/0%
56.6%
43.4%/0%/5.3%
__inspector▶
70
100%
0%/0%/0%
100%
0%/0%/0%
85.7%
14.3%/0%/0%
85.7%
14.3%/2.9%/0%
100%
0%/0%/0%
0%
100%/0%/0%
94.3%
5.7%/0%/77.1%
__inspector/promises▶
70
100%
0%/0%/0%
100%
0%/0%/0%
0%
100%/0%/0%
85.7%
14.3%/2.9%/0%
100%
0%/0%/0%
0%
100%/0%/0%
82.9%
17.1%/2.9%/71.4%
__module▶
86
93.0%
7.0%/0%/0%
69.8%
30.2%/0%/0%
67.4%
32.6%/0%/0%
80.2%
19.8%/14.0%/0%
61.6%
38.4%/4.7%/0%
9.3%
90.7%/1.2%/0%
73.3%
26.7%/8.1%/30.2%
__net▶
38
100%
0%/0%/0%
100%
0%/0%/0%
100%
0%/0%/0%
89.5%
10.5%/0%/0%
94.7%
5.3%/0%/10.5%
89.5%
10.5%/0%/0%
89.5%
10.5%/0%/0%
__os▶
178
100%
0%/0%/0%
100%
0%/0%/0%
100%
0%/0%/0%
100%
0%/0%/0%
100%
0%/0%/0%
0%
100%/0%/0%
99.4%
0.6%/0%/1.1%
__path▶
172
100%
0%/0%/0%
100%
0%/0%/0%
94.2%
5.8%/0%/0%
100%
0%/0%/0%
94.2%
5.8%/0%/0%
94.2%
5.8%/0%/0%
94.2%
5.8%/0%/0%
__path/posix▶
172
100%
0%/0%/0%
100%
0%/0%/0%
94.2%
5.8%/0%/0%
100%
0%/0%/0%
94.2%
5.8%/0%/0%
94.2%
5.8%/0%/0%
94.2%
5.8%/0%/0%
__path/win32▶
172
100%
0%/0%/0%
100%
0%/0%/0%
94.2%
5.8%/0%/0%
100%
0%/0%/0%
94.2%
5.8%/0%/0%
94.2%
5.8%/0%/0%
94.2%
5.8%/0%/0%
__perf_hooks▶
126
99.2%
0.8%/0%/0%
99.2%
0.8%/0%/0%
94.4%
5.6%/0%/0%
90.5%
9.5%/3.2%/0%
33.3%
66.7%/0%/1.6%
0%
100%/0%/0%
100%
0%/0%/0%
__process▶
1488
98.8%
1.2%/0%/0%
96.6%
3.4%/0%/0%
93.8%
6.3%/0.3%/0%
47.1%
52.9%/0.7%/0%
43.7%
56.3%/0.9%/0%
0.8%
99.2%/0%/0%
16.2%
83.8%/3.5%/0.7%
__punycode▶
18
100%
0%/0%/0%
100%
0%/0%/0%
100%
0%/0%/0%
100%
0%/0%/0%
100%
0%/0%/0%
0%
100%/0%/0%
100%
0%/0%/0%
__querystring▶
16
100%
0%/0%/0%
100%
0%/0%/0%
100%
0%/0%/0%
100%
0%/0%/0%
100%
0%/0%/0%
100%
0%/0%/0%
100%
0%/0%/0%
__readline▶
24
100%
0%/0%/0%
100%
0%/0%/0%
100%
0%/0%/0%
100%
0%/0%/0%
100%
0%/0%/0%
0%
100%/0%/0%
100%
0%/0%/8.3%
__readline/promises▶
8
100%
0%/0%/0%
100%
0%/0%/0%
100%
0%/0%/0%
100%
0%/0%/0%
100%
0%/0%/0%
0%
100%/0%/0%
100%
0%/0%/0%
__repl▶
17
100%
0%/0%/0%
100%
0%/0%/0%
100%
0%/0%/0%
29.4%
70.6%/0%/0%
76.5%
23.5%/0%/23.5%
0%
100%/0%/0%
100%
0%/0%/11.8%
__stream▶
91
100%
0%/0%/0%
100%
0%/0%/0%
95.6%
4.4%/0%/0%
96.7%
3.3%/0%/0%
87.9%
12.1%/0%/0%
100%
0%/0%/0%
100%
0%/0%/0%
__stream/consumers▶
12
100%
0%/0%/0%
100%
0%/0%/0%
100%
0%/0%/0%
100%
0%/0%/0%
100%
0%/0%/0%
100%
0%/0%/0%
100%
0%/0%/0%
__stream/promises▶
6
100%
0%/0%/0%
100%
0%/0%/0%
100%
0%/0%/0%
100%
0%/0%/0%
100%
0%/0%/0%
100%
0%/0%/0%
100%
0%/0%/0%
__stream/web▶
36
100%
0%/0%/0%
100%
0%/0%/0%
100%
0%/0%/0%
100%
0%/11.1%/0%
100%
0%/0%/0%
100%
0%/0%/0%
100%
0%/0%/0%
__string_decoder▶
4
100%
0%/0%/0%
100%
0%/0%/0%
100%
0%/0%/0%
100%
0%/0%/0%
100%
0%/0%/0%
100%
0%/0%/0%
100%
0%/0%/0%
__sys▶
180
100%
0%/0%/0%
96.7%
3.3%/0%/0%
94.4%
5.6%/0%/0%
88.9%
11.1%/0%/0%
87.8%
12.2%/0%/0%
82.2%
17.8%/0%/0%
97.8%
2.2%/0%/6.7%
__timers▶
34
100%
0%/0%/0%
100%
0%/0%/0%
64.7%
35.3%/0%/0%
94.1%
5.9%/0%/0%
76.5%
23.5%/0%/0%
94.1%
5.9%/0%/0%
94.1%
5.9%/0%/0%
__timers/promises▶
14
100%
0%/0%/0%
100%
0%/0%/0%
100%
0%/0%/0%
100%
0%/0%/0%
100%
0%/0%/0%
100%
0%/0%/0%
100%
0%/0%/0%
__tls▶
36
100%
0%/0%/0%
100%
0%/0%/0%
100%
0%/0%/0%
94.4%
5.6%/0%/0%
88.9%
11.1%/0%/5.6%
30.6%
69.4%/0%/0%
100%
0%/0%/16.7%
__trace_events▶
6
100%
0%/0%/0%
100%
0%/0%/0%
100%
0%/0%/0%
100%
0%/0%/0%
100%
0%/0%/0%
0%
100%/0%/0%
100%
0%/0%/0%
__tty▶
8
100%
0%/0%/0%
100%
0%/0%/0%
100%
0%/0%/0%
100%
0%/0%/0%
100%
0%/0%/0%
0%
100%/0%/0%
100%
0%/0%/0%
__url▶
26
100%
0%/0%/0%
100%
0%/0%/0%
100%
0%/0%/0%
100%
0%/0%/0%
100%
0%/0%/0%
100%
0%/0%/0%
100%
0%/0%/0%
__util▶
180
100%
0%/0%/0%
96.7%
3.3%/0%/0%
94.4%
5.6%/0%/0%
88.9%
11.1%/0%/0%
87.8%
12.2%/0%/0%
82.2%
17.8%/0%/0%
97.8%
2.2%/0%/6.7%
__util/types▶
86
100%
0%/0%/0%
100%
0%/0%/0%
100%
0%/0%/0%
100%
0%/0%/0%
97.7%
2.3%/0%/0%
100%
0%/0%/0%
100%
0%/0%/0%
__v8▶
60
100%
0%/0%/0%
100%
0%/0%/0%
96.7%
3.3%/0%/0%
93.3%
6.7%/0%/0%
53.3%
46.7%/0%/20.0%
0%
100%/0%/0%
100%
0%/0%/26.7%
__vm▶
26
100%
0%/0%/0%
100%
0%/0%/0%
76.9%
23.1%/0%/0%
100%
0%/0%/0%
100%
0%/0%/7.7%
0%
100%/0%/0%
100%
0%/0%/30.8%
__wasi▶
4
100%
0%/0%/0%
100%
0%/0%/0%
100%
0%/0%/0%
100%
0%/0%/0%
100%
0%/0%/0%
0%
100%/0%/0%
100%
0%/0%/0%
__worker_threads▶
40
100%
0%/0%/0%
85.0%
15.0%/0%/0%
80.0%
20.0%/0%/0%
80.0%
20.0%/0%/0%
80.0%
20.0%/0%/15.0%
0%
100%/0%/0%
100%
0%/0%/5.0%
__zlib▶
374
100%
0%/0%/0%
100%
0%/0%/0%
99.5%
0.5%/0%/0%
100%
0%/0%/0%
100%
0%/0%/0%
100%
0%/0%/0%
100%
0%/0%/0%