Javascript+deobfuscator+and+unpacker+portable Patched May 2026
[3] Acorn AST Walker. https://github.com/acornjs/acorn
<!DOCTYPE html> <html> <head><title>Portable JS Deobfuscator</title></head> <body> <textarea id="code" rows="10" cols="80" placeholder="Paste obfuscated JS here"></textarea><br> <button onclick="deob()">Deobfuscate</button> <button onclick="unpack()">Unpack (eval)</button> <pre id="output"></pre> <script> function deob() let code = document.getElementById('code').value; try // Basic: unpack simple eval let unpacked = code.replace(/eval\(([^)]+)\)/g, (_, m) => eval(m)); // JSFuck? Not fully but remove most easy obf let pretty = unpacked.replace(/\s+/g, ' ').trim(); document.getElementById('output').innerText = pretty; catch(e) document.getElementById('output').innerText = e.toString(); javascript+deobfuscator+and+unpacker+portable
: Identifying hidden string arrays and replacing the cryptic references with the actual strings. Hex/Unicode Decoding : Converting obfuscated characters like back to their readable counterparts like Going Portable: Why It Matters [3] Acorn AST Walker