Attachment inspector
Inspect attachments received by a test inbox.
Your input stays on this device. Nothing is uploaded or saved.
About Attachment inspector
Inspect attachment names, MIME labels, exact byte sizes and SHA-256 hashes from a saved EML message.
When to use it
Check attachment encoding in a saved MIME message.
EML message → attachment names, sizes and SHA-256 hashesHow to use it
- Paste a raw email or choose an EML file.
- Review attachment metadata and hashes.
Limits & privacy
Paste up to 64 KiB or inspect an EML file up to 1 MiB in your browser. Hosted pasted text uses plan input limits; EML files remain capped at 1 MiB. Up to 100 MIME parts, 16 nesting levels and 64 KiB of headers. Nothing is delivered, executed, fetched remotely or retained. Header claims and attachment MIME labels are untrusted; this is not signature verification or malware scanning.
Use this tool from the API reference or connect through the SDK, CLI, SSH, or MCP. Hosted calls share your plan allowances.