Decompile Node.js 18 .jsc Files
Node.js 18 runs on the V8 10.x line. JSC Decompiler reads the V8 build straight from the bytecode header and turns compiled .jsc files back into readable JavaScript — no matching runtime required.
Bytecode fingerprint
Every .jsc file opens with a 4-byte little-endian magic header that identifies the V8 code-cache format. Node.js 18 files sit on the V8 10.x line, paired with Electron 18–22 (V8 10.x).
0xC0DE0562How to decompile a Node.js 18 .jsc file
Upload at jscdecompiler.com
Drag and drop your Node.js 18 .jsc file into the web app. Nothing to install.
Auto-detect the version
JSC Decompiler reads the magic header and selects the V8 10.x deserializer automatically — you never pick a version by hand.
Download the JavaScript
View the reconstructed source in the browser, copy it, or download the .js file.
Node.js 18 version notes
- Node 18 runs the V8 10.x line (10.1 at launch, moving to 10.2 and later 10.9 across the LTS), pairing with Electron 18 through 22.
- Early Node 18 builds can carry the 0xC0DE0562 magic also seen on late Node 16, marking the 9.x/10.x boundary.
- V8 10.x is where pointer-compression-related layout changes matured; the decompiler reads pointer width from the header rather than assuming it.
Node.js 18 decompilation FAQ
Which V8 version is in Node 18?
The V8 10.x line, beginning at 10.1 and moving to 10.2+ across LTS releases.
Can a Node 18 .jsc be read on Node 20?
No. The V8 10.x and 11.x serializers are incompatible; decompilation is the reliable path.
Related versions
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