readmbox.com

Productivity & Businesshttps://readmbox.com/listed as of 2026-08-24

Open MBOX files in your browser with no software to install. Read Google Takeout and Thunderbird exports, search by sender, subject or date, and export to CSV, Excel, PDF or EML. Your mail never…

See Ora's auditWe loaded this site in a real browser and scored its tools. Score: 55/100 (C).

Tools

get_mailbox_statusanswerimperative

Report whether an MBOX file is open in this tab and what is in it: message count, date span, how many messages the current filters match, and whether the mailbox is fully readable. Call this first.

Input schema

{
  "type": "object",
  "properties": {}
}

list_messagesanswerimperative

List messages currently shown in the reader, newest-first or in whatever order the page is sorted by. Returns index, date, sender and subject only. Cheap at any mailbox size. Use read_message for the body.

Input schema

{
  "type": "object",
  "properties": {
    "offset": {
      "type": "integer",
      "description": "Start position in the current view. Default 0.",
      "minimum": 0
    },
    "limit": {
      "type": "integer",
      "description": "How many to return, up to 50. Default 25.",
      "minimum": 1
    }
  }
}

read_messageanswerimperative

Read one message in full: headers, plain-text body, and the names and sizes of its attachments. Attachment contents are not available. Use an index from list_messages or scan_messages.

Input schema

{
  "type": "object",
  "properties": {
    "index": {
      "type": "integer",
      "description": "Message index within the mailbox.",
      "minimum": 0
    }
  },
  "required": [
    "index"
  ]
}

filter_by_dateactimperative

Narrow the reader to a date range and/or change the sort order. Works instantly on any mailbox size because dates are already indexed. Updates what the person sees on screen. Does not do text search — that is scan_messages.

Input schema

{
  "type": "object",
  "properties": {
    "from": {
      "type": "string",
      "description": "Earliest date, YYYY-MM-DD. Omit for no lower bound."
    },
    "to": {
      "type": "string",
      "description": "Latest date, YYYY-MM-DD. Omit for no upper bound."
    },
    "sort_by": {
      "type": "string",
      "enum": [
        "file",
        "date",
        "from",
        "subject"
      ],
      "description": "Sort order for the list."
    }
  }
}

clear_filtersactimperative

Remove every filter — text query, date range, attachment toggle — and return the reader to the whole mailbox in file order.

Input schema

{
  "type": "object",
  "properties": {}
}

scan_messagesactimperative

Search subjects and senders for text, and/or find messages with attachments, optionally within a date range. This reads each message from disk, so it works in bounded passes: if the result says done=false, call again with the returned cursor to continue from where it stopped. Results are reported but do not change what is on screen.

Input schema

{
  "type": "object",
  "properties": {
    "query": {
      "type": "string",
      "description": "Text to look for in subject or sender. Case-insensitive."
    },
    "from": {
      "type": "string",
      "description": "Earliest date, YYYY-MM-DD."
    },
    "to": {
      "type": "string",
      "description": "Latest date, YYYY-MM-DD."
    },
    "has_attachment": {
      "type": "boolean",
      "description": "Only messages carrying an attachment."
    },
    "cursor": {
      "type": "integer",
      "description": "Resume position from a previous call. Omit to start at the beginning.",
      "minimum": 0
    }
  }
}

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