Digital Download File Name Checker
Catch the little file mistakes before buyers do.
Before you upload a product, FileCheck looks at the names and sizes of your files and points out system files, wrong types, oversized files, version words, near-duplicate names and characters that break links.
$3.49$4.99−30%
Offline appInstant downloadWorks offline

Try it here
A live demo with a made-up example. Nothing you type here is saved or sent anywhere.
What it does
What it checks
- Errors: hidden or system files (.DS_Store, Thumbs.db, __MACOSX), a type you do not deliver, a file over your size limit, more files than your limit
- Warnings: version words (final, copy, v2, new, old, draft, (1)), the same name with other capitals, spaces and link-breaking characters, an upper-case extension
- A cleaner name for each file and a copyable rename list
What you can do
- Choose files or a whole folder, or paste a list. Only names and sizes are read; the files are not opened and nothing is uploaded
- Type your own limits: most files per listing, largest file size, the file types you deliver
- Tick the files you attach and get Ready, Ready with N warnings or Not ready, plus a one-ZIP size estimate
- Print the report, save it as PDF from the print window, copy it as text or download it as CSV; backup file and CSV import
How it works
- Download the ZIP and START-HERE.pdf from Etsy after checkout.
- Unzip and open Envelo-FileCheck.html in your web browser. No account and no internet needed.
- Look at the filled example, then check your own files.
What you receive
- START-HERE.pdf (0.12 MB)
- Envelo-FileCheck-v1.0.zip (3.17 MB)
Inside the ZIP:
- Envelo-FileCheck.html: the app, opens in your browser by double click and works offline
- Envelo-FileCheck.xlsx: spreadsheet edition with My Files (blank), a made-up example and How to use
- templates/: 4 printable sheets (PNG): Pre-upload file check and Attachment plan, US Letter and A4
- examples/: the made-up example bundle as a backup file and its file list as CSV (2 files)
- START-HERE/: the START HERE guide in 11 languages (PDF)
- Excel-languages/: the spreadsheet in 10 more languages, one file each
- LICENSES.txt and WHAT_YOU_GET.txt
Good to know
- This is a digital download. Nothing is shipped.
- FileCheck checks the names and sizes you give it. It does not open your files and cannot tell you that a marketplace will accept them. The limits are yours: check the current limits of your marketplace.
- The ZIP size is an estimate.
- Your file list stays on your device. Nothing is uploaded. No subscription.
- Works in 11 languages (English, Spanish, French, German, Italian, Portuguese, Dutch, Polish, Russian, Hindi and Arabic, right to left) – switch any time. Your list does not sync between devices; move it with the backup file.
- For use in your own shop or business. Please don't resell or share the files or the printable templates.
- Not made or endorsed by Etsy.
- The app, its logo and the texts were made as code with the help of an AI coding assistant. No AI image generators were used.
A closer look




Buy it on Etsy and download the files straight away.