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AlexEne/twiggy

Twiggy🌱 is a code size profiler

1,429

stars

642

commits

Rust

primary language

Feb 18, 2026

updated

rustwasm.github.io/twiggy
profiler
size-optimization
wasm
Browse cluster: Ghost blogging platform themes and tools →

README

Twiggy🌱

A code size profiler for Wasm

Guide | Contributing | Chat

Built with 🦀🕸 by The Rust and WebAssembly Working Group

About

Twiggy is a code size profiler for Wasm. It analyzes a binary's call graph to answer questions like:

  • Why was this function included in the binary in the first place? Who calls it?

  • What is the retained size of this function? I.e. how much space would be saved if I removed it and all the functions that become dead code after its removal.

Use Twiggy to make your binaries slim!

Install Twiggy

Ensure that you have the Rust toolchain installed, then run:

cargo install twiggy

Learn More!

Read the Twiggy guide!

Contributors

(top 30 of 33)

fitzgen

178 commits

dependabot-preview[bot]

110 commits

dependabot-support

109 commits

data-pup

98 commits

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AlexEne/twiggy

Twiggy🌱 is a code size profiler

1,429

stars

642

commits

Rust

primary language

Feb 18, 2026

updated

rustwasm.github.io/twiggy
profiler
size-optimization
wasm
Browse cluster: Ghost blogging platform themes and tools →

README

Twiggy🌱

A code size profiler for Wasm

Guide | Contributing | Chat

Built with 🦀🕸 by The Rust and WebAssembly Working Group

About

Twiggy is a code size profiler for Wasm. It analyzes a binary's call graph to answer questions like:

  • Why was this function included in the binary in the first place? Who calls it?

  • What is the retained size of this function? I.e. how much space would be saved if I removed it and all the functions that become dead code after its removal.

Use Twiggy to make your binaries slim!

Install Twiggy

Ensure that you have the Rust toolchain installed, then run:

cargo install twiggy

Learn More!

Read the Twiggy guide!

Similar repos

google/bloaty

Bloaty: a size profiler for binaries

5,540

rustwasm/wasm-pack

📦✨ your favorite rust -> wasm workflow tool!

7,284

shared contributors

bytecodealliance/wizer

The WebAssembly Pre-Initializer

1,100

Kobzol/cargo-pgo

Cargo subcommand for optimizing Rust binaries/libraries with PGO and BOLT.

790

dtolnay/cargo-llvm-lines

Count lines of LLVM IR per generic function

523

TimonPost/cargo-unused-features

Find potential unused enabled feature flags and prune them.

301

bytecodealliance/wasmtime

A lightweight WebAssembly runtime that is fast, secure, and standards-compliant

18,593

shared contributors

davidlattimore/duplicate-function-checker

36

Contributors

(top 30 of 33)

fitzgen

178 commits

dependabot-preview[bot]

110 commits

dependabot-support

109 commits

data-pup

98 commits

Languages

Rust

77.6%

JavaScript

8.6%

CSS

7.0%

Handlebars

5.1%

WebAssembly

1.3%