Scan, don't touch
Your folder is read locally so the tool can see every file, its size, and when it was last modified.
Learn how to sort folders by category, extension, or date with the free SmartFiles File Organiser - preview the plan first, catch duplicates, and keep everything private on your device.
100% private
Nothing leaves your device
3 ways
Sort by category, extension, or date
Dry run
Preview before you move anything
Key takeaways
How it works
SmartFiles scans the folder you choose, groups every file into a clear plan, and only then moves anything - entirely on your device.
Your folder is read locally so the tool can see every file, its size, and when it was last modified.
Instead of a folder per extension, JPG, PNG, and GIF all land in 'Images' while PDFs and DOCX go into 'Documents'.
Prefer chronology? Group files into year (2026) or year-month (2026-09) folders based on their modified date.
Everything runs on your device. File names and contents never leave your computer or phone.
Features
Group files, catch duplicates, and preview the plan before moving a single file - free and completely private.
Organize as many folders as you want with no account and no limits.
Your files are processed locally and never leave your device.
Group by category, extension, or date - switch anytime and the plan updates live.
Same-name, same-size copies are moved to a 'Duplicates' folder instead of clashing.
Route files containing words like 'Invoice' into folders you define.
Review the full plan before confirming - nothing moves until you say so.
Change the rules and the preview rebuilds instantly, so you can fine-tune freely.
Organize folders on Windows, Mac, Linux, Android, or iPhone from the browser.
Step-by-step
Follow these steps to clean up a messy folder online in less than a minute - no software to install.
Open the File Organiser and click "Browse Folder" to pick the messy folder you want to clean up (Chrome and Edge can sort it in place).
Choose category, extension, or date sorting, toggle duplicate detection, and add any custom keyword rules.
See exactly which folders will be created and which files will move - with file counts and sizes - before touching anything.
Click "Organize Folder" to move everything into the new structure, or download a re-organized ZIP in browsers without in-place support.
Use cases
From download folders to shared drives, a tidy structure saves time every single day.
That endless pile of installers, images, and PDFs gets grouped into logical folders in one click.
Clear your desktop of stray screenshots and snippets without losing anything.
Sort camera dumps into Images folders and date subfolders so you can find any shot.
Keep team folders consistent so people can actually find the files they need.
Group documents, assets, and exports into one tidy project folder structure.
Reorganize files on an Android phone, tablet, or new laptop quickly and privately.
The difference
Most online organizers ask for uploads or install software. Here is why local processing changes everything.
| Feature | SmartFiles | Most other tools |
|---|---|---|
| Price | Free, forever | Freemium limits or paid software |
| Privacy | 100% in-browser | Files uploaded to servers or synced to the cloud |
| Installation | Nothing to install | Desktop apps or extensions required |
| Account required | No sign-up | Often forced before use |
| Safety | Dry-run preview first | Files moved instantly with no review |
| Duplicates | Detected and separated | Often overlooked or deleted blindly |
Why download any other software to organize files when your browser can do it better? SmartFiles runs entirely in your browser, keeping every file private on your device - no install, no uploads, and full control over where everything goes.
Expert tips
Small habits that keep your folders clean long after the first organize.
#1Organize by category first
Start with smart categories, then enable date subfolders only if you actually need them - fewer folders is easier to browse.
#2Use keyword rules for recurring files
If invoices, receipts, or notes always end up in the same folder, add a rule once and it applies every time.
#3Always preview before confirming
The dry-run view costs one second and removes all risk - skim the folder list before you hit Organize.
#4Review the Duplicates folder
The organiser never deletes anything. Give the Duplicates folder a quick look and remove extras yourself for real space savings.
#5Cleaning is a habit, not an event
Run the organiser once a month on your Downloads folder so clutter never gets out of hand again.
#6Keep one inbox folder
Let new files land in one place, then organize that single folder on a schedule - the magic of a clean system.
FAQ
Everything people ask before organizing their first folder with SmartFiles.
Yes. It runs entirely in your browser using the File System Access API, and a dry-run preview shows exactly what will move before you confirm anything. Files are never uploaded and nothing is ever deleted - duplicates are just separated into their own folder for you to review.
Chromium-based browsers such as Google Chrome and Microsoft Edge support in-place organizing via the File System Access API. In Firefox and Safari you can still choose a folder, preview the full organization plan, and download a re-organized ZIP copy instead.
Instead of making a folder for every extension, files are grouped into human-friendly categories. JPG, PNG, WEBP, and GIF go into 'Images'; PDF, DOCX, and XLSX into 'Documents'; MP3, WAV, and FLAC into 'Audio'; and so on. This keeps your folder structure compact and easy to scan.
Yes. Switch the sort mode to 'Date' to group files into year or year-month folders, enable date subfolders alongside categories, or add custom keyword rules to route files containing specific words into folders you define.
With duplicate detection enabled, files that share the same name and size are moved into a 'Duplicates' folder instead of being copied over each other. Nothing is deleted automatically - you decide whether to remove the copies afterwards.
No. All scanning, planning, and moving happens locally in your browser tab. SmartFiles has no access to your folders and cannot see, store, or analyze any file names or contents you choose to organize.
Yes. It is completely free with no sign-up, no account, and no file limits. Organize as many folders as you like.
Yes. On Android and iOS you can select a folder and use the download-ZIP workflow to get an organized copy, while Chrome and Edge on desktop can move files in place. It all happens in the browser—no app required.
Open the File Organiser, choose a folder, and watch the plan build itself in seconds. Nothing moves until you confirm.
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Try the toolLast updated: September 24, 2026 by the SmartFiles Editorial Team