I'm facing a memory leak, and while looking for the problem, wondered if there was some way in Node.js to find the memory allocated to a JavaScript Object. Node provides a way to find the overall heap and stack space, but I couldn't find anything in the documentation or online to find the space for a specific object.

Given the way variables work, it shouldn't be hard to write something within node to find the size, but I was wondering if something, maybe a JavaScript function, already exists to do it?

I'm facing a memory leak, and while looking for the problem, wondered if there was some way in Node.js to find the memory allocated to a JavaScript Object. Node provides a way to find the overall heap and stack space, but I couldn't find anything in the documentation or online to find the space for a specific object.

Given the way variables work, it shouldn't be hard to write something within node to find the size, but I was wondering if something, maybe a JavaScript function, already exists to do it?

• javascript
• node.js
• memory-management

Share Improve this question Follow edited Feb 12, 2011 at 2:36 Vanwaril asked Feb 11, 2011 at 17:29 VanwarilVanwaril 7,57877 gold badges3535 silver badges4747 bronze badges 2

• 1 There's some kind of memory management plugin for node.js. Maybe in the v8 toolchain – Raynos Commented Feb 11, 2011 at 17:35
• Chips. I think I pressed the wrong button. This did not deserve down-vote, but upvote! – Alfred Commented Dec 31, 2012 at 1:42

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There's Node-Profiler you could use to take 2 heap snapshot and search for large objects by paring their values.