Dev Time Run Time e18e.dev Blog
← All frameworks

Next.js

Version 16.1.1 · Measured 5/22/2026

Dev Time Performance

Prod Deps Dev Deps Dup. Deps node_modules node_modules (prod) Dep Install Size Graph
3 6 12 560.04MB 436.00MB 506.22MB View
Metric Avg Min Max
Install 3.00s 2.83s 3.44s
Cold Build 5.07s 4.97s 5.14s
Warm Build 5.11s 5.02s 5.26s

Build output size: 6.23MB

Unnecessary Core-JS Polyfills

302 core-js polyfill modules are bundled but already natively supported by the last 2 major versions of Chrome, Firefox, Safari, and Edge — code users download even though their browser already supports it natively. The containing chunk is approximately 110.0 KB (chunk size, not isolated core-js bytes).

View 302 unnecessary modules by category
  • es.typed-array.* 39
  • es.array.* 37
  • es.string.* 36
  • es.object.* 28
  • es.math.* 18
  • web.* 17
  • es.symbol.* 15
  • es.reflect.* 14
  • es.number.* 13
  • es.date.* 8
  • esnext.array.* 8
  • es.regexp.* 7
  • esnext.set.* 7
  • es.array-buffer.* 6
  • esnext.typed-array.* 6
  • es.promise.* 5
  • es.set.* 5
  • esnext.string.* 4
  • es.function.* 3
  • esnext.array-buffer.* 3
  • esnext.promise.* 3
  • es.error.* 2
  • es.aggregate-error.* 2
  • es.map.* 2
  • esnext.object.* 2
  • es.data-view.* 1
  • es.escape.* 1
  • es.global-this.* 1
  • es.json.* 1
  • es.parse-float.* 1
  • es.parse-int.* 1
  • es.unescape.* 1
  • es.weak-map.* 1
  • es.weak-set.* 1
  • esnext.aggregate-error.* 1
  • esnext.global-this.* 1
  • esnext.map.* 1

Duplicate Dependencies

12 duplicate dependencies detected across this starter's node_modules.

View 12 duplicate dependencies
  • debug 
    [duplicate dependency] debug has 2 installed versions:
4.4.3 via the following 10 package(s) @babel/traverse@7.29.0, @babel/core@7.29.0, @eslint/config-array@0.21.1, @eslint/eslintrc@3.3.3, eslint@9.39.2, eslint-import-resolver-typescript@3.10.1, @typescript-eslint/project-service@8.55.0, @typescript-eslint/typescript-estree@8.55.0, @typescript-eslint/parser@8.55.0, @typescript-eslint/type-utils@8.55.0
3.2.7 via the following 3 package(s) eslint-import-resolver-node@0.3.9, eslint-plugin-import@2.32.0, eslint-module-utils@2.12.1
💡 Suggestions
- Consider standardizing on version 4.4.3 as this version is the most commonly used.
- Consider upgrading consuming packages as this may resolve this duplicate version.
  • json5 
    [duplicate dependency] json5 has 2 installed versions:
2.2.3 via the following 1 package(s) @babel/core@7.29.0
1.0.2 via the following 1 package(s) tsconfig-paths@3.15.0
💡 Suggestions
- Consider upgrading consuming packages as this may resolve this duplicate version.
  • semver 
    [duplicate dependency] semver has 2 installed versions:
6.3.1 via the following 4 package(s) @babel/helper-compilation-targets@7.28.6, @babel/core@7.29.0, eslint-plugin-import@2.32.0, eslint-plugin-react@7.37.5
7.7.4 via the following 3 package(s) sharp@0.34.5, is-bun-module@2.0.0, @typescript-eslint/typescript-estree@8.55.0
💡 Suggestions
- Consider standardizing on version 6.3.1 as this version is the most commonly used.
- Consider upgrading consuming packages as this may resolve this duplicate version.
  • eslint-visitor-keys 
    [duplicate dependency] eslint-visitor-keys has 2 installed versions:
3.4.3 via the following 1 package(s) @eslint-community/eslint-utils@4.9.1
4.2.1 via the following 3 package(s) espree@10.4.0, eslint@9.39.2, @typescript-eslint/visitor-keys@8.55.0
💡 Suggestions
- Consider standardizing on version 4.2.1 as this version is the most commonly used.
- Consider upgrading consuming packages as this may resolve this duplicate version.
  • minimatch 
    [duplicate dependency] minimatch has 2 installed versions:
3.1.2 via the following 6 package(s) @eslint/config-array@0.21.1, @eslint/eslintrc@3.3.3, eslint@9.39.2, eslint-plugin-import@2.32.0, eslint-plugin-jsx-a11y@6.10.2, eslint-plugin-react@7.37.5
9.0.5 via the following 1 package(s) @typescript-eslint/typescript-estree@8.55.0
💡 Suggestions
- Consider standardizing on version 3.1.2 as this version is the most commonly used.
- Consider upgrading consuming packages as this may resolve this duplicate version.
  • globals 
    [duplicate dependency] globals has 2 installed versions:
14.0.0 via the following 1 package(s) @eslint/eslintrc@3.3.3
16.4.0 via the following 1 package(s) eslint-config-next@16.1.1
💡 Suggestions
- Consider upgrading consuming packages as this may resolve this duplicate version.
  • ignore 
    [duplicate dependency] ignore has 2 installed versions:
5.3.2 via the following 2 package(s) @eslint/eslintrc@3.3.3, eslint@9.39.2
7.0.5 via the following 1 package(s) @typescript-eslint/eslint-plugin@8.55.0
💡 Suggestions
- Consider standardizing on version 5.3.2 as this version is the most commonly used.
- Consider upgrading consuming packages as this may resolve this duplicate version.
  • postcss 
    [duplicate dependency] postcss has 2 installed versions:
8.5.6 via the following 1 package(s) @tailwindcss/postcss@4.1.18
8.4.31 via the following 1 package(s) next@16.1.1
💡 Suggestions
- Consider upgrading consuming packages as this may resolve this duplicate version.
  • brace-expansion 
    [duplicate dependency] brace-expansion has 2 installed versions:
1.1.12 via the following 1 package(s) minimatch@3.1.2
2.0.2 via the following 1 package(s) minimatch@9.0.5
💡 Suggestions
- Consider upgrading consuming packages as this may resolve this duplicate version.
  • resolve 
    [duplicate dependency] resolve has 2 installed versions:
1.22.11 via the following 1 package(s) eslint-import-resolver-node@0.3.9
2.0.0-next.5 via the following 1 package(s) eslint-plugin-react@7.37.5
💡 Suggestions
- Consider upgrading consuming packages as this may resolve this duplicate version.
  • glob-parent 
    [duplicate dependency] glob-parent has 2 installed versions:
6.0.2 via the following 1 package(s) eslint@9.39.2
5.1.2 via the following 1 package(s) fast-glob@3.3.1
💡 Suggestions
- Consider upgrading consuming packages as this may resolve this duplicate version.
  • picomatch 
    [duplicate dependency] picomatch has 2 installed versions:
4.0.3 via the following 2 package(s) fdir@6.5.0, tinyglobby@0.2.15
2.3.1 via the following 1 package(s) micromatch@4.0.8
💡 Suggestions
- Consider standardizing on version 4.0.3 as this version is the most commonly used.
- Consider upgrading consuming packages as this may resolve this duplicate version.

Runtime Performance

SSR Performance

Framework Ops/sec Median Latency Body Size Duplication
Baseline HTML 856 1.198ms 96.81kb 1x
Next.js 230 4.548ms 199.11kb 2x

Methodology

  • Each framework renders a table of 1000 rows with two UUID columns
  • Mock HTTP requests bypass TCP overhead for accurate rendering measurement
  • Data is loaded asynchronously to simulate real-world data fetching
  • Duplication factor indicates how many times each UUID appears in the response (1x = optimal, 2x = includes hydration payload)
  • Benchmarks run for 10 seconds using tinybench
  • Astro, Nuxt, and SvelteKit handle Node.js HTTP requests natively. React Router, SolidStart, and TanStack Start use Web APIs internally, so benchmarks include the cost of their Node.js adapter layers (@react-router/node, h3, and srvx respectively)
  • Next.js defaults to React Server Components (RSC), a different rendering model than traditional SSR. To keep the comparison fair, Next.js uses "use client" to opt out of RSC and use traditional SSR + hydration like most of the other frameworks
  • Inspired by eknkc/ssr-benchmark

SPA Performance

Framework First Paint FCP INP
Next.js 349.2ms 349.19ms 15.14ms

Methodology

  • Each framework renders a table of 1000 rows with two UUID columns
  • Measured using Lighthouse flow with Chromium via Puppeteer for accurate browser metrics
  • First Paint and First Contentful Paint are measured on initial navigation
  • Interaction to Next Paint is measured by clicking the first row's detail link
  • Benchmarks run 5 times and results are averaged
  • Next.js, TanStack Start, and React Router default to SSR with no per-route opt-out. Next.js wraps the SPA table in a dynamic import with ssr: false to prevent build-time prerendering. TanStack Start uses its built-in spa mode. React Router disables SSR entirely via ssr: false in its config. All other frameworks (Nuxt, SvelteKit, SolidStart, Astro) disable SSR per-route without a separate build.

MPA Performance

Framework First Paint FCP INP
Next.js 142.2ms 142.21ms 16.08ms

Methodology

  • Each framework renders a table of 1000 rows with two UUID columns
  • Measured using Lighthouse flow with Chromium via Puppeteer for accurate browser metrics
  • First Paint and First Contentful Paint are measured on initial navigation
  • Interaction to Next Paint is measured by clicking the first row's detail link
  • Benchmarks run 5 times and results are averaged
  • Next.js, TanStack Start, and React Router default to SSR with no per-route opt-out. Next.js wraps the SPA table in a dynamic import with ssr: false to prevent build-time prerendering. TanStack Start uses its built-in spa mode. React Router disables SSR entirely via ssr: false in its config. All other frameworks (Nuxt, SvelteKit, SolidStart, Astro) disable SSR per-route without a separate build.