--- title: A microbenchmark suite for Node.js, Deno and Bun. Not a... description: A microbenchmark comparison of Node.js 25.6.1, Deno 2.6.9, and Bun 1.3.9 across 14 tests including HTTP throughput, JSON parsing/serialization, SHA-256... canonical: https://daily.dev/posts/a-microbenchmark-suite-for-node-js-deno-and-bun-not-a-full-app-benchmark-but-it-is-still-useful--b5hv47ctr twitter:card: summary_large_image twitter:site: @dailydotdev og:type: website og:site_name: daily.dev og:title: A microbenchmark suite for Node.js, Deno and Bun. Not a full app benchmark, but it is still useful for seeing where each runtime is strong when the exact same code patterns run on the same | daily.dev og:description: A microbenchmark comparison of Node.js 25.6.1, Deno 2.6.9, and Bun 1.3.9 across 14 tests including HTTP throughput, JSON parsing/serialization, SHA-256... og:url: https://daily.dev/posts/a-microbenchmark-suite-for-node-js-deno-and-bun-not-a-full-app-benchmark-but-it-is-still-useful--b5hv47ctr og:image: https://api.daily.dev/og/posts/b5hV47CTR.png og:image:alt: A microbenchmark suite for Node.js, Deno and Bun. Not a full app benchmark, but it is still useful for seeing where each runtime is strong when the exact same code patterns run on the same og:image:width: 1200 og:image:height: 630 og:locale: en --- > ## Documentation Index > Fetch the complete documentation index at: https://daily.dev/llms.txt > Use this file to discover all available pages before exploring further. # A microbenchmark suite for Node.js, Deno and Bun. Not a full app benchmark, but it is still useful for seeing where each runtime is strong when the exact same code patterns run on the same **[Alexey Zerkalenkov](https://daily.dev/sources/tzhsbevyajhcmr0fmoxfj)** · [@alexeyzerkalenkov](https://daily.dev/alexeyzerkalenkov) · 0 upvotes · 0 comments ## Summary A microbenchmark comparison of Node.js 25.6.1, Deno 2.6.9, and Bun 1.3.9 across 14 tests including HTTP throughput, JSON parsing/serialization, SHA-256 hashing, buffer operations, array transformations, and async scheduling. Run on Apple M4 hardware with 15 iterations per test reporting p50 medians. Bun led in 8 of 14 tests, excelling at HTTP throughput and large JSON parsing. Deno led in 5 tests, particularly async scheduling and arithmetic loops. Node led in 1 test (SHA-256 hashing of small buffers) but remained competitive overall. ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: ## Similar posts on daily.dev - [Don’t just attend KubeCon \+ CloudNativeCon, Merge Forward your experience\!](https://daily.dev/posts/don-t-just-attend-kubecon-cloudnativecon-merge-forward-your-experience--l0rpp73x8) · CNCF · 1 upvotes · 0 comments - [Announcing H2 2026 KCDs](https://daily.dev/posts/announcing-h2-2026-kcds-m96goajm1) · CNCF · 1 upvotes · 0 comments - [Two months of Open Community Groups](https://daily.dev/posts/two-months-of-open-community-groups-asf52zhbs) · CNCF · 0 upvotes · 0 comments - [CNCF Unveils Schedule for KubeCon \+ CloudNativeCon Europe 2026](https://daily.dev/posts/cncf-unveils-schedule-for-kubecon-cloudnativecon-europe-2026-ikhcoa5cb) · CNCF · 2 upvotes · 0 comments - [CNCF Debuts KubeCon \+ CloudNativeCon Japan 2026 Schedule](https://daily.dev/posts/cncf-debuts-kubecon-cloudnativecon-japan-2026-schedule-xp5pyudub) · CNCF · 1 upvotes · 0 comments --- Tags: [#javascript](https://daily.dev/tags/javascript), [#performance](https://daily.dev/tags/performance), [#nodejs](https://daily.dev/tags/nodejs), [#deno](https://daily.dev/tags/deno), [#bun](https://daily.dev/tags/bun) [View this post on daily.dev](https://daily.dev/posts/a-microbenchmark-suite-for-node-js-deno-and-bun-not-a-full-app-benchmark-but-it-is-still-useful--b5hv47ctr) ```json {"@context":"https://schema.org","@graph":[{"@type":"Organization","@id":"https://daily.dev/#organization","name":"daily.dev","url":"https://daily.dev","logo":{"@type":"ImageObject","url":"https://daily.dev/apple-touch-icon.png","width":180,"height":180},"sameAs":["https://twitter.com/dailydotdev","https://github.com/dailydotdev","https://www.linkedin.com/company/daily-dev-ltd"]},{"@type":"WebSite","@id":"https://daily.dev/#website","url":"https://daily.dev","name":"daily.dev","publisher":{"@id":"https://daily.dev/#organization"},"potentialAction":{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https://daily.dev/search?q={search_term_string}"},"query-input":"required name=search_term_string"}}]} {"@context":"https://schema.org","@type":"DiscussionForumPosting","mainEntityOfPage":"https://daily.dev/posts/a-microbenchmark-suite-for-node-js-deno-and-bun-not-a-full-app-benchmark-but-it-is-still-useful--b5hv47ctr","headline":"A microbenchmark suite for Node.js, Deno and Bun.\n\nNot a full app benchmark, but it is still useful for seeing where each runtime is strong when the exact same code patterns run on the same","text":"Shared: Node.js vs Deno vs Bun Performance Benchmarks","url":"https://daily.dev/posts/a-microbenchmark-suite-for-node-js-deno-and-bun-not-a-full-app-benchmark-but-it-is-still-useful--b5hv47ctr","datePublished":"2026-02-20T07:42:32.829Z","dateModified":"2026-02-20T07:43:06.440Z","author":{"@type":"Person","name":"Alexey Zerkalenkov","url":"https://daily.dev/alexeyzerkalenkov","image":"https://lh3.googleusercontent.com/a/ACg8ocKQBwPwaHC4XrPy0rniDybogCxlwDp7QCLkbwsqNRQSFhqDIlIf=s96-c","description":"Fullstack AI Engineer","interactionStatistic":{"@type":"InteractionCounter","interactionType":{"@type":"EndorseAction"},"userInteractionCount":8510}},"image":"https://media.daily.dev/image/upload/s--qPvKM23u--/f_auto/v1722860399/public/Placeholder%2009","interactionStatistic":[{"@type":"InteractionCounter","interactionType":{"@type":"LikeAction"},"userInteractionCount":0},{"@type":"InteractionCounter","interactionType":{"@type":"CommentAction"},"userInteractionCount":0}],"sharedContent":{"@type":"WebPage","url":"https://api.daily.dev/r/psZwtiuJ3"},"isPartOf":{"@type":"WebPage","url":"https://daily.dev/sources/tzhsbevyajhcmr0fmoxfj","name":"Alexey Zerkalenkov"}} {"@context":"https://schema.org","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https://daily.dev"},{"@type":"ListItem","position":2,"name":"Alexey Zerkalenkov","item":"https://daily.dev/sources/tzhsbevyajhcmr0fmoxfj"},{"@type":"ListItem","position":3,"name":"A microbenchmark suite for Node.js, Deno and Bun.\n\nNot a full app benchmark, but it is still useful for seeing where each runtime is strong when the exact same code patterns run on the same"}]} ```