MIME Type Checker

MIME Type Checker is part of DevStudio — a free, in-browser collection of developer utilities that work without sign-up, installation, or any backend service. Look up MIME types by file extension or content sniffing, all running entirely on your device. Because the page never uploads what you paste, you can run sensitive payloads, configuration files, secrets, or production data through it with confidence: nothing leaves your browser tab. Use MIME Type Checker for ad-hoc debugging, code review, log triage, release prep, learning a new format, or as a quick scratchpad while you build. If you use this tool a lot, pair it with String Inspector, URL Splitter, User-Agent Parser, and the rest of the DevStudio toolkit for related developer workflows.

Related developer tools

• String Inspector — Escape strings, visualize whitespace, and inspect Unicode code points
• URL Splitter — Break URLs into scheme, host, port, path, query and fragment parts
• User-Agent Parser — Decode a UA string into browser / OS / device / engine; flag bots, crawlers, CLIs and library fetchers
• Dev Cheatsheets — Searchable Vim / Git / Regex / JSON / CSS / YAML / SQL / Markdown / cron / Bash reference

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