Easy Field Builder
Build file names with reusable tokens — dates, counters, client codes, or project IDs. Mix and match with easy drag-and-drop blocks to save custom templates for any workflow.
Local-First • Endlessly Customizable
Define Once. Rename Everything.
FileNamer turns inconsistent file naming into easily customizable naming patterns — locally, privately, and at any scale.
FileNamer
📂 /Documents/ProjectAlpha
-
Invoice AcmeCorp July 10.pdfdone -
Project Alpha Draft v3.docxdone -
Q2 Summary Report final.xlsxdone -
Shoot July cam A take 4.mp4done -
DSC_9743.jpgdone -
june: BILLING REPORT v3 final 01-1.xlsx.pdfdone -
"2025 YEAR END REVIEW - final version 1.docxdone -
database-export-daily-dump-7-11-26-v2.csvdone
How It Works
A simple, three-step process to transform your file management entirely inside your browser:
01
Build Your Pattern
Drag and drop dynamic smart tokens (Dates, Counters, Client IDs) to construct your layout.
02
Select Your Files
Add in files or entire folders and preview every change live.
03
Rename Instantly
Apply the updates directly to files in seconds.
Feature Rich
Packed with features designed to streamline your workflow and make file organization a breeze.
Batch Process Instantly
Rename hundreds of files simultaneously. Apply complex patterns across an entire folder instantly to keep your data structured from day one.
Apply Team Conventions
Lock in a shared naming standard and share templates with your team. Ensure every team member stays aligned, keeping shared drives clean and searchable.
Preview Before Saving
See every renamed file side-by-side with its original name. Switch into Bulk Edit view to make per-file tweaks. Download a sheet export for your records.
See It in Action
From starting your project to the final rename — every stage of your workflow, designed to stay out of your way.
Easy Field Builder
Add fields into the builder to assemble your naming pattern. Reorder, swap separators, and preview the live output as you build.
Real-Time Preview
See exactly how your file names will look, so you can adjust your naming structure on the fly without guesswork.
Files Queue
Queue up entire folders of files and preview their new names side-by-side. Jump into Bulk Edit for per-file control.
Built for Real Workflows
FileNamer adapts to how your team already works — from production sets to data pipelines.
Frequently Asked Questions
Everything happens locally in your browser. FileNamer never uploads your files or filenames to any server — no cloud storage, no third-party processing. Your data stays on your device, which means your naming patterns, file contents, and metadata remain completely private by design. You can even use FileNamer offline once the page has loaded.
Yes. FileNamer lets you export any naming pattern as a shareable template file. Your team can import it directly — no account or sync service required. Templates are saved locally and are always just a click away.
FileNamer works with any file type — images, video, audio, documents, archives, code files, and everything in between. Because it runs entirely in the browser, it is platform-agnostic: macOS, Windows, Linux, and ChromeOS are all fully supported without installing anything. The only requirement is a modern browser.