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One place to see what software engineers actually use: 1.9k tools across 15 domains, ranked by real-world adoption and momentum.

Updated Nov 12, 2026. How rankings work

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HomeDomainsLanguages & Runtimes

Languages & Runtimes

The programming languages developers use most, the rising ones worth watching, and the runtimes, version managers, type checkers and WebAssembly tooling around them.

Categories: 9
Tools: 80
Stars: 2.1M

893M combined weekly package downloads tracked in this domain.

Hot in Languages & Runtimes

workerd

cloudflare/workerd

Trending (detected automatically)Rising

Open-source runtime behind Cloudflare Workers for self-hosting and local dev; now absorbing the Deno team's work.

9.2k49.1M/wktoday+98%

Bun

oven-sh/bun

All-in-one JavaScript runtime, package manager, bundler and test runner focused on speed.

96.7k5.8M/wk2d ago+68%

uv

astral-sh/uv

TrendingPopular

Extremely fast Rust-based package and project manager replacing pip, pip-tools, pipx, pyenv and virtualenv.

91.9k49.1M/wktoday+39%

Ruff

astral-sh/ruff

TrendingPopular

Rust-powered Python linter and formatter that replaces Flake8, isort and Black at 10-100x the speed.

50.5k100M/wk5d ago+39%

Categories

9 categories. Open one to filter, sort and compare its tools.

Most-Used Languages

15 tools

General-purpose languages with the largest professional user bases, roughly ordered by usage.

JavaScript, Python, TypeScript

Rising & Modern Languages

8 tools

Newer languages gaining real momentum or attention for systems, AI and functional programming.

Zig, Gleam, Mojo

Functional & BEAM Languages

7 tools

Established functional languages and the Erlang VM family, prized for correctness and concurrency.

Elixir, Scala, Erlang

JavaScript Runtimes

6 tools

Server-side and edge runtimes that execute JavaScript and TypeScript outside the browser.

Node.js, Bun, Deno

Python Toolchain

10 tools

Package and project managers, linters, formatters and alternative interpreters for Python.

Type Checkers & Compilers

8 tools

Static type checkers and next-generation compilers for gradually typed languages.

TypeScript, mypy, Pyright

Version & Toolchain Managers

10 tools

Tools for installing and switching language versions and SDKs per project.

WebAssembly

10 tools

Wasm runtimes, compilers and frameworks for running sandboxed, portable code in and out of the browser.

Wasmtime, Emscripten, wasm-bindgen

JVM, .NET & Managed Runtimes

7 tools

Virtual machines, JDK distributions and managed platforms that run Java, Kotlin, C# and friends.

.NET, Eclipse Temurin, GraalVM

Learn & go deeper

Stack Overflow Developer Survey 2025: Technology

Most used and most admired languages

survey.stackoverflow.co

GitHub Octoverse 2025

Language growth on GitHub; TypeScript became #1 by contributors

octoverse.github.com

JetBrains State of Developer Ecosystem 2025

Language usage, adoption intent and the Language Promise Index

blog.jetbrains.com

Monthly language popularity ranking

www.tiobe.com

PYPL Popularity of Programming Language

Ranking based on tutorial search trends

pypl.github.io

Learning roadmaps for Python, Go, Rust, Java, TypeScript and more

roadmap.sh

Node.js Release Schedule

Current, LTS and end-of-life Node.js versions

nodejs.org

Awesome WebAssembly Runtimes

Catalog of Wasm runtimes and their status

github.com