File metadata inspector
Inspect file size, format, and metadata.
Runs in your browser
Drop a file hereAny file up to 25 MiB
OutputText · 0 bytes
Your result will appear hereAdd your input, choose the options and run the tool.
Your input stays on this device. Nothing is uploaded or saved.
About File metadata inspector
Inspect a file’s name, exact size, extension, signature hint, and initial bytes without storing it.
When to use it
Check an upload fixture before using it in a test.
name: sample.pdf
size: 1024 bytes
signatureHint: PDFHow to use it
- Choose a local file.
- Inspect the basic metadata and signature hint.
Limits & privacy
Browser files up to 25 MiB. Hosted Base64 files accept up to 10 MiB. Signature hints are not malware scanning or full format validation. Files are not stored.
Use this tool from the API reference or connect through the SDK, CLI, SSH, or MCP. Hosted calls share your plan allowances.