Clear out your Gmail in bulk.
MailBoy is a Chrome side panel that shows what is actually filling up your mailbox — which folders, which senders, how much space — then bins it, files it, or blocks it. Thousands of emails at a time, not one thread at a time.
Everything runs in your browser. There is no MailBoy server, and no mailbox data ever leaves your machine.
What it does
Gmail will not tell you how big a folder is, or who is filling it. MailBoy works both out, then gives you one click to act on the answer.
Know what to clear
Every folder shows an exact email count and a total size. Open one and it breaks down by sender: how many each has sent, how much space they take, how often they write. Sort by any of those, or narrow to a period.
Clear out in bulk
Tick the senders filling a folder — or individual emails — and send the lot to Trash in one go. Thousands at a time, from a list already sorted by what is costing you the most.
File what you keep
Move a selection into a folder, creating the folder right there if it does not exist yet. A move is definitive: the mail ends up in the folder you chose and nowhere else, so “where is this?” has one answer.
Block a sender for good
One click writes a Gmail filter sending everything from that address — or from their entire domain — straight to Trash from now on. Nothing you already have moves.
Make it stick
When you move or delete, you can ask for future mail like it to go the same way automatically. The Rules tab keeps every rule MailBoy made in one place — alongside the Gmail filters you already had, grouped by where they send mail.
Shape your folders
Create and remove your own folders, nesting included. Deleting one asks what should happen to the mail inside: back to your inbox, or to Trash.
Check before you bin
A sender's emails, ten to a page, and any one of them opened. Messages are shown as plain text — MailBoy never loads a sender's images or styling, so looking at one does not tell them you did.
Two things worth knowing up front
Both shape what MailBoy can and cannot do to your mail.
Nothing is ever deleted permanently
Mail MailBoy removes goes to Trash, where Gmail keeps it for 30 days and you can put it back. MailBoy deliberately never asks Google for the permission that would allow permanent deletion, so it cannot do it — not by mistake, and not if you told it to.
Mail you wrote is left out throughout
No Sent or Drafts row, and neither counts towards a folder. Gmail labels whole threads, so this is also what makes deleting a folder incapable of touching anything you sent. The cost: a folder covering conversations you took part in reads slightly lower here than in Gmail's own sidebar.
Your mail stays yours
MailBoy talks to Gmail straight from your browser. There is no MailBoy server anywhere in the middle, so there is nowhere for your mail to be collected — not by us, and not by anyone.
Kept on your computer
- How big each email is, who sent it and when — what every count, size and sender list is built from. None of it can change, which is why your mailbox only has to be read once.
- Which folders your emails are in, and your Google account's name and email address.
- Your sign-in is held in memory and never written to disk. Closing Chrome discards it.
Never written to disk
- Subjects, previews and message bodies
- Recipients, attachments and your rules
- Analytics, telemetry or crash reporting — there is none
- Anything sent to a third party — nothing is
What MailBoy keeps is erased 7 days after you log out, so signing back in does not mean waiting for your mailbox to be read again. If you would rather it went straight away, Log out and erase data now does exactly that.
What you are asked to allow
Google shows you three permissions when you connect, each with its own tick box. You can leave any of them unticked — MailBoy works with what it is given, and asks again only when you press something that needs more.
| Permission | What MailBoy does with it |
|---|---|
| See your email | Folder counts and sizes, sender breakdowns, and opening a message |
| Change your email | Creating and deleting folders; moving, deleting and restoring mail |
| Change your mail settings | Making and removing rules, and blocking a sender |
The full detail — everything that is stored, for how long, and how to remove it — is in the privacy policy.
Get MailBoy
It sits in Chrome's side panel, beside whatever you are doing. Chrome 114 or newer. The first run reads your mailbox once so it knows what you are working with — a few minutes on a large one, and you can close the panel while it works. Every open after that is seconds.
MailBoy's code is published in full, so anyone can check for themselves that it does what this page says with their mailbox.