Auto-rename email attachments in Outlook.
BetterAttach renames email attachments using your naming templates before you save them — so files are findable the moment they land, not after an afternoon of sorting through Downloads.
Free forever. Works with Microsoft 365.
Received
Saved as
The Problem
Your naming standard exists. Nobody has time to follow it.
Every attachment saved from email adds to the chaos. Generic filenames break your filing system, slow down reconciliation, and make month-end close harder than it needs to be.
Hours lost every month
Bookkeepers and AP teams spend 5+ hours a month just gathering and renaming invoices and receipts. That's paid time spent on mechanical admin.
Files lost in Downloads
invoice.pdf. scan001.pdf. document(3).pdf. They pile up until someone spends an afternoon sorting through them before month-end close.
Inconsistent naming, forever
When everyone on the team saves files differently, searching, reconciling, and handing off work becomes guesswork.
How It Works
Three steps. Zero server uploads. Zero new habits.
Open your email in Outlook
BetterAttach appears in the task pane automatically when an email with attachments is selected.
See renamed attachments instantly
Your naming rules run locally. Each attachment shows its current name and what it will be saved as — side by side.
Save with the right name
Click Save. The file lands with the correct name in SharePoint, a network drive, or your local folders. Nothing touches our servers.
Features
Built for the people who process documents all day.
Your rules, your templates
Define naming templates that match how your team actually works — {date}_{vendor}_{type}, or whatever makes sense for your filing system.
Email-first, not folder-first
Most tools enforce naming inside the DMS. BetterAttach catches files the moment they arrive in Outlook, before a bad name gets saved anywhere.
Works with your existing storage
Save to SharePoint, network drives, or local folders. BetterAttach handles the naming — your storage stays exactly as is.
Zero uploads. Full privacy.
All renaming happens locally in the Outlook task pane. File contents never leave your machine or your organization's network.
FAQ
Questions from people who process documents all day.
Stop renaming files by hand.
Install BetterAttach in under 5 minutes. Your naming templates handle the rest — every attachment, every email.
Works with Outlook on the web and Outlook for Windows.