Developer Utilities
100% Client-Side Privacy
MIME Type & File Extension Lookup
Search common MIME types, Content-Types, and file extensions.
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How It Works & Capabilities
Searchable database of over 200 MIME media types and file extensions. Search by extension (.json, .pdf, .webp) or MIME type (application/json) with category filters.
Step 1
Paste or Input Data
Enter code, tokens, queries, or raw strings directly into the client-side editor workspace.
Step 2
Instant Browser Processing
Native Web APIs and in-browser parsers execute deterministic conversions with zero network latency.
Step 3
Inspect and Export
Copy formatted outputs or download clean data files with one click, knowing your input never left your device.
Key Features
- ✓ Bidirectional search (Extension ↔ MIME)
- ✓ Filter by category (Document, Image, Audio, Video, Text)
- ✓ RFC media type definitions
- ✓ One-click copy of Content-Type header
Technical Considerations & Limits
- • Zero-transmission privacy: data processing runs strictly client-side inside your browser environment. Source code, secrets, and payloads are never dispatched to external servers or telemetry systems.
- • Processing speed depends entirely on your device hardware (CPU & available RAM). Extremely large files (>200MB) may exceed browser memory limits.
Tool Specifications
| Category | Developer Utilities |
| Security & Privacy | Processed entirely on device |
| Cost / Pricing | 100% Free |
| Data Retention | Ephemeral (Auto-wiped) |