33x faster than SVGO with better compression. Native Rust performance via napi-rs, no WASM overhead.

Install

# npm
npm install -g svgm-node

# yarn
yarn global add svgm-node

# pnpm
pnpm add -g svgm-node

# bun
bun add -g svgm-node

Prebuilt binaries are available for:

| Platform | Architecture | |:--|:--| | Linux | x64 (glibc), x64 (musl) | | macOS | x64, arm64 (Apple Silicon) | | Windows | x64 |

CLI

Installing the package also provides a svgm command:

svgm icon.svg                    # Optimize in place
svgm icon.svg -o icon.min.svg    # Write to different file
svgm icon.svg --stdout           # Print to stdout
svgm icon.svg --dry-run          # Preview without writing
svgm icon.svg --preset safe      # Safe preset (20 passes)
svgm icon.svg --precision 2      # Override numeric precision
svgm *.svg                       # Multiple files

When piped, output goes to stdout automatically.

For the full-featured CLI (recursive directory mode, config files, progress bars), install via Rust: cargo install svgm

JavaScript API

const { optimize, version } = require('svgm-node');

const result = optimize('<svg xmlns="http://www.w3.org/2000/svg">...</svg>');
console.log(result.data);       // optimized SVG string
console.log(result.iterations); // convergence count
console.log(version());         // e.g. "0.3.2"

ESM

import { optimize, version } from 'svgm-node';

With options

const result = optimize(svgString, {
  preset: 'safe',       // "safe" | "default"
  precision: 2,         // numeric precision (default: 3)
  passes: {
    removeDesc: true,    // enable opt-in passes
    mergePaths: false,   // disable specific passes
  },
});

API

optimize(svg: string, options?: OptimizeOptions): OptimizeResult

Optimizes an SVG string. Throws on invalid SVG input.

version(): string

Returns the svgm version.

Types

interface OptimizeOptions {
  preset?: string;                    // "safe" | "default"
  precision?: number;                 // numeric precision (default: 3)
  passes?: Record<string, boolean>;   // per-pass enable/disable
}

interface OptimizeResult {
  data: string;       // optimized SVG
  iterations: number; // convergence iterations
}

Presets

• safe — removal and normalization only (20 passes)
• default — full optimization (34 passes)

Links

• Website
• Playground
• GitHub
• CLI on crates.io
• WASM build

License

Dual-licensed under MIT and Apache 2.0.