For Windows · Mac coming soon
What’s this file, download (3).pdf?
wtfile (what’s this file) reads each new download and gives it a clear name based on what's inside. Invoices, statements, contracts, receipts. Automatically, on your PC.
- No subscription. Pay once.
- Works offline.
- Your files never leave your PC.
Free for 25 renames, plus a Pro trial on 25 files. Set up in a minute. No account, no card, no subscription.
- download (3).pdfTelus_Invoice_2026-10-18.pdf
- statement_8812.pdfRBC_Chequing_Statement_2026-10.pdf
- scan0042.pdfPurchase_Agreement_123_Maple_St.pdf
See it work
Eight downloads in, seven clear names out. The one it wasn't sure about (is 03/04 March or April?) was left alone.
How it works
1. Pick a folder
Usually Downloads. wtfile waits until each file has finished downloading before it looks.
2. It reads the document
Type, dates, organization, totals, addresses. In English, French, Spanish, German, Portuguese, Italian, Chinese, Japanese and Korean.
3. It renames, or asks
Confident? Renamed. Not sure? It waits in Review for you. A wrong name is worse than no name, so it doesn't guess.
- Every rename can be undone. One click in Activity.
- Never overwrites or deletes a file. Name clashes become
Name (2).pdf. - Reads PDF, Word, Excel, PowerPoint, text, CSV and photos. Scanned PDFs and screenshots with Pro.
- Folder rules (Pro) can file documents too, e.g.
Clients\{client_last}.
Your files stay on your computer
wtfile reads documents on your PC with rules, not a cloud AI. There is no account and no telemetry. A license is activated once over the internet, then works offline.
- The only thing wtfile asks the internet is whether an update exists, once a day. It sends the app version and your operating system, nothing about your files. You can turn it off.
- Document text is never stored, only the details used in the name.
- Works without an internet connection.
Pricing
Pay once. Free updates for life. No subscription.
Free
$0
- 25 renames, ever (no monthly reset)
- One watched folder
- Built-in naming patterns
- Undo, history, Review
- Try Pro free on 25 files, from inside the app
Pro
$39.99 one-time
- For one person, work use included
- Unlimited renames and folders
- Your own naming rules and document types
- Folder rules and industry profiles (real estate, dealerships)
- Reads scanned PDFs and screenshots
- AI-assistant connector (e.g. Claude Desktop)
- Free updates for life
Secure checkout by Stripe. 14-day money-back guarantee. Your license key appears right after payment and is emailed to you.
For teams
Everything in Pro for the whole office, plus naming setups you can share so everyone files the same way. One key for every computer.
Custom
Let's talk
More than 10 computers, invoicing, or a naming setup for your industry.
Contact usDownload wtfile
Windows 10 and 11, 64-bit. Installs for your user account, no administrator needed.
On a Mac? Be first to get it.
wtfile runs on your computer. Email yourself the link.
Only about wtfile. One email when it's ready, nothing else. Unsubscribe anytime.
Questions
Is it safe to let an app rename my files?
wtfile never overwrites or deletes anything, every rename can be undone in one click, and when it isn't sure it asks instead of guessing. It only touches the folders you choose.
Does it use AI?
No. wtfile reads documents with rules that run on your computer, so nothing is sent to an AI service. Unusual layouts go to Review instead of getting a guessed name.
Do I need an account?
No. Download it, pick a folder, done. If you buy Pro, you get a license key to paste in. Activating it needs the internet once; after that it works offline.
Is there a free trial of Pro?
Yes. In wtfile, open Settings → License → Start Pro trial (25 files). Your next 25 files get every Pro feature, with no payment details. After that you're back on Free, and your 25 free renames are still there.
What happens after 25 free renames?
New suggestions wait in Review. Undo, history and settings keep working, and nothing is locked or deleted.
Can I use one license on two computers?
A Pro license works on one computer at a time; Business works on 5 or 10. Moving to a new computer? Remove the license on the old one in Settings → License, or free your computers here if the old one is gone.
Do I have to pay for updates?
No. Pro is a one-time purchase and every future update is included. wtfile installs them for you if you allow it.
Can I get a refund?
Yes. Email support@getwtfile.com within 14 days of purchase for a full refund, no questions asked. You can also try the free version first.
What if I uninstall it?
Your files keep their new names. Nothing else changes.
What does “wtfile” stand for?
What’s This File: the question every download (3).pdf makes you ask. wtfile answers it by reading the file, then names it for you.