Extension
.json
MIME
application/json
Developer Tools
Look up file extensions and MIME Content-Type values locally in your browser. Covers common formats for server config, upload checks, and API debugging.
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开发工具
共 200+ 条 MIME 类型已加载
Extension
.json
MIME
application/json
It covers mainstream everyday formats. Rare or vendor-specific types may be missing.
A few formats have historical aliases. The tool shows its built-in mapping; custom server rules still win when they differ.
Tools
Continue with another translated tool for a nearby task.
HTTP Status Lookup
Look up HTTP status codes and keywords locally in your browser. Covers common 1xx–5xx codes with meaning and typical usage notes for API debugging.
HTTP Header Parser
Parse raw request or response header text into structured key/value pairs locally. Useful for API debugging, cache policy checks, and CORS header review.
Data URL Generator
Convert images or SVG into data: URLs locally for embedding in HTML, CSS, or small resource references. Files are not uploaded.