MessagePack to JSON
Free
Utility
(4.5)
Decode MessagePack blobs to readable JSON without leaving your browser.
Binary is decoded only in your browser. Nothing is uploaded to Infyways.
MessagePack → JSON
Upload a small MessagePack binary file to view as formatted JSON.
Upload .msgpack / binary
●Core capabilities
Highlights
Debug binary payloads from APIs and workers.
Client-side decode
Uses @msgpack/msgpack in the browser; bytes never leave your device.
1+
Features
99.9%
Reliability
24/7
Available
Free
Always
●Step-by-step flow
How to Use
Simple 1-step process
1
Step 1
Upload a MessagePack-encoded file produced by your API or tooling.
Quick Start
Begin in seconds
Easy Process
No learning curve
Instant Results
Get results immediately
●FAQ
Frequently Asked Questions
Everything you need to know about this tool and how it works.
See Full FAQThis page only decodes MessagePack to JSON. Encoding can be added later if needed.
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