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deno vs next.js

deno and next.js share 5 technologies: React, Tokio, image, tracing, and tracing-subscriber. deno is written in Rust and next.js in JavaScript.

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What they share and what sets them apart

denoland

deno

A modern runtime for JavaScript and TypeScript.

Rust108.8kRead on November 4, 2026, at commit e7b39ebWhat is deno built with?
vercel

next.js

The React Framework

JavaScript143.3kRead on November 4, 2026, at commit 97f1a2cWhat is next.js built with?

In common

Only in deno

  • rusqlite
  • SQLite
  • tower
  • wgpu
  • crossterm
  • ed25519-dalek
  • hmac
  • keyring
  • argon2
  • hkdf
  • zip
  • plist
  • log
  • opentelemetry
  • tracing-opentelemetry
  • env_logger

Only in next.js

Side by side

SizeLines written by people and agents, without generated ones; code files, without tests.
deno1,217,015 lines written1,355 code files
next.js2,391,614 lines written5,697 code files
Who writes itA commit counts as AI's when it carries its signature: a Co-Authored-By line, its author name or the merge of its branch.
deno2.4% of its commits signed by AIWith Claude Code, GitHub Copilot, Cursor, and Codex
next.js0.8% of its commits signed by AIWith Claude Code, Cursor, GitHub Copilot, and Devin
ActivityFrom GitHub and its history, on the day SeeRepo read it.
denoLast push October 29, 202617,392 commits108,801 stars
next.jsLast push November 4, 202636,392 commits143,262 stars
TestsThe files that test the code, and the share of code files a test imports.
deno4,394 test files6.1% of its code files have a test that imports them
next.js18,587 test files6.5% of its code files have a test that imports them

Frequently asked questions

Which is bigger, deno or next.js?
next.js, with 2,391,614 lines written; deno has 1,217,015.

The proof: vercel/next.js's code at commit 97f1a2c

Which has more GitHub stars, deno or next.js?
next.js, with 143,262 stars; deno has 108,801.

The proof: vercel/next.js on GitHub

Which has more tests, deno or next.js?
next.js, with 18,587 test files; deno has 4,394.

The proof: vercel/next.js's code at commit 97f1a2c

Which was updated more recently, deno or next.js?
next.js: its last push was on November 4, 2026, and deno's on October 29, 2026.

The proof: vercel/next.js's commits on GitHub

Which has more commits signed by AI, deno or next.js?
deno: an AI signed 2.4% of its commits, with Claude Code, GitHub Copilot, Cursor, and Codex; in next.js, 0.8%.

The proof: the commits each tool signed in denoland/deno

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