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Look up common MIME types, file extensions and browser-facing content-type values in one fast table.
Runs locally in your browser by default — nothing is uploaded first.
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MIME Type Reference runs locally in your browser by default, so you can work with the content without uploading it first.
Look up common file extensions and MIME types before you set Content-Type values or inspect uploaded files.
Does MIME Type Reference run locally or in the cloud?
MIME Type Reference runs locally in your browser by default, so you can work with the content without uploading it first.
What usually comes after MIME Type Reference?
A common next step is to continue into related workflows such as Network and DevOps Tools.
Why use hex instead of decimal bytes?
Hex maps neatly to bytes: two hex digits represent one byte, making patterns easier to read.
A technical guide to hexadecimal inspection, byte order, file signatures, BOM markers, and why byte-level debugging helps with format problems.
JSON and CSV Are Not Equivalent: What Gets Lost During ConversionA practical technical article on converting between JSON and CSV, including nesting, headers, quoting, nulls, types, and spreadsheet assumptions.
Protocol Buffers Explained: Schemas, Field Numbers, and Binary DebuggingA technical introduction to protobuf payloads, why schemas are required, how field numbers work, and what to inspect when binary messages fail.
collectionNetwork and DevOps ToolscollectionData Format Conversion ToolsLook up common file extensions and MIME types before you set Content-Type values or inspect uploaded files.
