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Benchmark Results

Generated: 2026-07-26T03:30:51.330Z

Lower ms/op is better. Benchmarks run in Node with production package builds where available; heap delta is a coarse process-level signal, not an allocation profiler. Streaming rows replay the complete response in 32-character chunks, so one operation is one progressive response.

Markdown

Name Fixture Bytes Iterations ms/op Output bytes Heap delta KB
@tanstack/markdown parse ai-response.md 652 2000 0.0189 15 1376.2
@tanstack/markdown render AST with external highlighter ai-response.md 652 2000 0.0039 1399 -2717.8
@tanstack/markdown render AST ai-response.md 652 2000 0.0033 1143 722.9
@tanstack/markdown parse+render with external highlighter ai-response.md 652 2000 0.0213 1399 1964.5
@tanstack/markdown parse+render ai-response.md 652 2000 0.0201 1143 3244.9
marked parse+render ai-response.md 652 2000 0.0244 1035 -611.4
markdown-it parse+render ai-response.md 652 2000 0.0165 1087 -3661.9
micromark render ai-response.md 652 2000 0.1390 825 9400.2
commonmark parse+render ai-response.md 652 2000 0.0114 825 136.6
markdown-wasm render ai-response.md 652 2000 0.0071 1117 -11973.3
unified remark+rehype render ai-response.md 652 2000 0.1576 824 30108.1
@tanstack/markdown parse code-heavy.md 1011 1000 0.0062 15 -3895.8
@tanstack/markdown render AST with external highlighter code-heavy.md 1011 1000 0.0070 4504 2304.5
@tanstack/markdown render AST code-heavy.md 1011 1000 0.0033 1835 -18930.2
@tanstack/markdown parse+render with external highlighter code-heavy.md 1011 1000 0.0132 4504 -1353.3
@tanstack/markdown parse+render code-heavy.md 1011 1000 0.0095 1835 9930.3
marked parse+render code-heavy.md 1011 1000 0.0054 1330 -19833.4
markdown-it parse+render code-heavy.md 1011 1000 0.0076 1330 27308.1
micromark render code-heavy.md 1011 1000 0.1222 1330 -11584.4
commonmark parse+render code-heavy.md 1011 1000 0.0085 1330 24578.4
markdown-wasm render code-heavy.md 1011 1000 0.0041 1512 2558.8
unified remark+rehype render code-heavy.md 1011 1000 0.1283 1200 -6735.2
@tanstack/markdown parse malformed.md 237 2000 0.0029 15 23936.5
@tanstack/markdown render AST with external highlighter malformed.md 237 2000 0.0015 1067 -15520.8
@tanstack/markdown render AST malformed.md 237 2000 0.0007 361 6986.2
@tanstack/markdown parse+render with external highlighter malformed.md 237 2000 0.0045 1067 8059.2
@tanstack/markdown parse+render malformed.md 237 2000 0.0036 361 -2208.1
marked parse+render malformed.md 237 2000 0.0045 350 -16761.9
markdown-it parse+render malformed.md 237 2000 0.0041 300 -7844.5
micromark render malformed.md 237 2000 0.0427 300 7691.9
commonmark parse+render malformed.md 237 2000 0.0032 300 -9658.8
markdown-wasm render malformed.md 237 2000 0.0017 408 2938.6
unified remark+rehype render malformed.md 237 2000 0.0459 297 1749.3
@tanstack/markdown parse prose-heavy.md 1700 1000 0.0217 15 1528.4
@tanstack/markdown render AST with external highlighter prose-heavy.md 1700 1000 0.0019 1903 11772.6
@tanstack/markdown render AST prose-heavy.md 1700 1000 0.0020 1903 -20955.2
@tanstack/markdown parse+render with external highlighter prose-heavy.md 1700 1000 0.0256 1903 14688.2
@tanstack/markdown parse+render prose-heavy.md 1700 1000 0.0256 1903 -18061.1
marked parse+render prose-heavy.md 1700 1000 0.0313 1860 6664.6
markdown-it parse+render prose-heavy.md 1700 1000 0.0162 1860 14340.5
micromark render prose-heavy.md 1700 1000 0.2112 1862 5863.4
commonmark parse+render prose-heavy.md 1700 1000 0.0109 1862 -17640.3
markdown-wasm render prose-heavy.md 1700 1000 0.0058 2340 3368.2
unified remark+rehype render prose-heavy.md 1700 1000 0.2301 1859 51836.9
@tanstack/markdown parse small-doc.md 432 2000 0.0095 15 24039.2
@tanstack/markdown render AST with external highlighter small-doc.md 432 2000 0.0028 1328 31783.3
@tanstack/markdown render AST small-doc.md 432 2000 0.0024 1002 26132.6
@tanstack/markdown parse+render with external highlighter small-doc.md 432 2000 0.0130 1328 -14446.8
@tanstack/markdown parse+render small-doc.md 432 2000 0.0124 1002 -20381.4
marked parse+render small-doc.md 432 2000 0.0114 724 -14855.6
markdown-it parse+render small-doc.md 432 2000 0.0071 776 3163.8
micromark render small-doc.md 432 2000 0.0869 535 -20923.6
commonmark parse+render small-doc.md 432 2000 0.0054 535 50226.2
markdown-wasm render small-doc.md 432 2000 0.0031 854 3722.5
unified remark+rehype render small-doc.md 432 2000 0.0995 534 3726.3
@tanstack/markdown parse tables-lists.md 454 2000 0.0223 15 48781.5
@tanstack/markdown render AST with external highlighter tables-lists.md 454 2000 0.0039 1315 -17723.8
@tanstack/markdown render AST tables-lists.md 454 2000 0.0037 1315 -17690.0
@tanstack/markdown parse+render with external highlighter tables-lists.md 454 2000 0.0263 1315 30714.6
@tanstack/markdown parse+render tables-lists.md 454 2000 0.0278 1315 -34604.4
marked parse+render tables-lists.md 454 2000 0.0259 1102 -14274.4
markdown-it parse+render tables-lists.md 454 2000 0.0163 1325 26392.0
micromark render tables-lists.md 454 2000 0.1473 627 -38940.6
commonmark parse+render tables-lists.md 454 2000 0.0103 627 28388.4
markdown-wasm render tables-lists.md 454 2000 0.0053 1202 4505.4
unified remark+rehype render tables-lists.md 454 2000 0.1730 622 7657.6

Streaming

Name Fixture Bytes Iterations ms/op Output bytes Heap delta KB
@tanstack/markdown streaming profile ai-response.md 652 250 0.2345 1112 -23405.7
marked progressive parse+render ai-response.md 652 250 0.2556 1035 3231.5

Averages

Group Name Mean ms/op
markdown @tanstack/markdown parse 0.0136
markdown @tanstack/markdown render AST with external highlighter 0.0035
markdown @tanstack/markdown render AST 0.0026
markdown @tanstack/markdown parse+render with external highlighter 0.0173
markdown @tanstack/markdown parse+render 0.0165
markdown marked parse+render 0.0172
markdown markdown-it parse+render 0.0113
markdown micromark render 0.1249
markdown commonmark parse+render 0.0083
markdown markdown-wasm render 0.0045
markdown unified remark+rehype render 0.1391
streaming @tanstack/markdown streaming profile 0.2345
streaming marked progressive parse+render 0.2556