v0.5.306 — generational GC + lazy JSON tape default, faster than Node and Bun on most benchmarks
Perry compiles TypeScript to native GUI and CLI apps on macOS, iPadOS, iOS, Android, Linux, Windows, watchOS, tvOS, WebAssembly, and the Web. No runtime. No Electron. Just native binaries.
Get StartedView on GitHub
$ perry compile main.ts
Compiling main.ts...
✓ Compiled executable: main (2.3 MB)
$ ./main
Hello, World!
Everything you need to compile TypeScript to native applications
Produces standalone native executables. No Node.js, no V8, no runtime dependencies. Just a single binary that runs anywhere.
Direct TypeScript to native code compilation using SWC for parsing and LLVM for optimized code generation. No intermediate JavaScript.
Output binaries are typically 2-5MB. With optional V8 runtime for JS npm packages, 15-20MB. Ship less, deploy faster.
Same input, same binary. Reproducible across machines, across CI runs, across teams. No mystery rebuilds.
Built-in native implementations of fs, path, crypto, os, Buffer, child_process, and more. Use familiar Node.js APIs.
Need to use a pure JavaScript npm package? Enable the V8 runtime flag for full npm ecosystem compatibility.
Buttons, text fields, text areas, tables, canvas, scroll views, QR codes, secure fields, splash screens, and more — all compiling to real platform widgets via AppKit, GTK4, Win32, UIKit, and JNI.
Modules compose at build time — no runtime plugin overhead, no IPC boundaries. Your dependencies become direct native function calls in the final binary.
Real OS threads with parallelMap, parallelFilter, and spawn. Compile-time safety rejects mutable captures — no SharedArrayBuffer, no workers, just threads.
Automatic string extraction, CLDR plural rules for 30+ locales, compile-time validation. Translations baked into the binary with near-zero runtime lookup.
Perry compiles your TypeScript to native UI frameworks, WebAssembly, and JavaScript — not web views, not Electron. Real native widgets on every platform, plus the web.
Perry doesn't just compile your app — it gets it into your users' hands.
Cross-platform builds from one command. Code signing for macOS, iOS, Android, and Windows handled for you. No wrestling with Xcode provisioning profiles or Android keystores.
Push to the App Store, Play Store, or ship direct downloads. Perry Publish handles packaging, notarization, and submission.
Powered by Geisterhand. Automated UI testing across all 6 platforms. Know your app works everywhere before your users tell you it doesn't.
Free for open-source projects. Plans for teams → /publish
Framework Comparison
TypeScript compiled to native code. Real platform widgets. No runtime overhead.
| Framework | Language | Native Code | Native Widgets | Runtime Overhead |
|---|---|---|---|---|
Perry★AOT compiled to native binary | TypeScript | None | ||
React NativeJIT / interpreted at runtime | JS / TypeScript | Hermes / V8 + Bridge | ||
FlutterAOT compiled, custom renderer | Dart | Dart VM + Skia engine | ||
KMP + ComposeJVM on Android, native on iOS | Kotlin | Partial | Kotlin runtime + Skia | |
Swift for AndroidNative binary, no shared UI | Swift | No shared UI | Swift runtime on Android | |
.NET MAUIPartial AOT via Mono | C# | Partial | .NET / Mono runtime | |
NativeScriptJS runtime, native widget access | JS / TypeScript | V8 / JavaScriptCore | ||
IonicWeb app in native wrapper | JS / TypeScript | WebView + Capacitor |
Use familiar TypeScript syntax and APIs. Perry handles the rest.
// hello.ts
const greeting = "Hello, World!";
console.log(greeting);
// Compiles to ~2MB native executable
// No runtime needed!
Native compilation delivers unmatched efficiency
| Metric | Perry | Node.js | Bun |
|---|---|---|---|
| Binary Size | 2-5 MB | ~80 MB | ~90 MB |
| Startup Time | ~1 ms | ~30 ms | ~10 ms |
| Runtime Dependencies | None | Node.js | Bun |
| Memory Overhead | Minimal | V8 + GC | JSC + GC |
Perry v0.5.279 vs Node.js v25 — RUNS=11 median, Apple M1 Max (lower is better)
json roundtrip
75ms vs 394ms
loop overhead
12ms vs 54ms
math intensive
14ms vs 51ms
loop data dependent
235ms vs 322ms
Binary SizeLower is better
Install Perry and start compiling TypeScript to native executables
$ brew tap PerryTS/perry
$ brew install perry
Requires Homebrew. Supports macOS arm64 and x86_64.
Compile a file
perry compile main.ts
Compiles main.ts to a native executable
Custom output
perry compile main.ts -o myapp
Specify the output executable name
With V8 runtime
perry compile main.ts --enable-js-runtime
Enable V8 for JavaScript npm package compatibility
Check compatibility
perry check ./src
Validate TypeScript code for native compilation
Comprehensive TypeScript and Node.js API coverage
Numbers64-bit floating point (f64)
StringsUTF-8, all common methods
Booleanstrue/false, logical operators
ArraysTyped and mixed-type arrays
ObjectsObject literals and field access
BigInt256-bit integer support
EnumsNumeric and string enums
Function DeclarationNamed functions
Arrow Functions() => {} syntax
Default ParametersParameters with defaults
Rest Parameters...args syntax
ClosuresIncluding mutable captures
Higher-Order FunctionsFunctions as arguments/returns
Async/AwaitAsync function support
Class DeclarationBasic class syntax
ConstructorsWith parameters
Private Fields (#)ES2022 #privateField syntax
Static Methods/FieldsClass-level members
Getters/Settersget/set accessors
Inheritanceextends keyword
Super Callssuper() constructor calls
Type AnnotationsExplicit type declarations
Type InferenceAutomatic type detection
GenericsMonomorphization (like Rust)
InterfacesInterface declarations
Union Typesstring | number support
Type Guardstypeof operator
Type Aliasestype X = ... declarations
fsreadFileSync, writeFileSync, existsSync, etc.
pathjoin, dirname, basename, extname, resolve
cryptorandomBytes, randomUUID, sha256, md5
osplatform, arch, hostname, memory info
Bufferfrom, alloc, toString, slice, copy
child_processexecSync, spawnSync
JSON/Math/DateFull implementations
Popular npm packages reimplemented in native Rust. No npm install, no node_modules, just fast native code.
mysql2pgmongodbbetter-sqlite3ioredis
bcryptargon2jsonwebtokencrypto
httphttpsaxiosnode-fetchwsnodemailer
cheeriosharpzliblodash
dayjsmomentdate-fnsnode-cron
uuidnanoidslugifyvalidatordotenvrate-limiter-flexible
Just import and use - Perry automatically uses the native implementation
From TypeScript source to native executable in seconds
HIR
TransformMonomorphization
Want to know how the compiler works under the hood? Compiler internals
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