Storage optimizer · Windows

Delete everything
non-essential.

Efficiency Filter scans any folder, removes duplicates, temp files, empty files, backups, and anything untouched for 90+ days — and outputs a clean copy. Your original is never touched.

Get Efficiency Filter →

How it works

01
Select input
Point to any folder on your machine. It will not be modified.
02
Select output
Choose an empty folder. The filtered copy goes here.
03
Dry run first
Preview exactly what would be deleted and why, before committing.
04
Live run
Output folder contains only essential files. README report included.

What gets removed

Duplicate files
Same content, different name. Second copy deleted.
Empty files
Zero bytes. No information, no reason to keep.
Temporary files
.tmp, .temp, ~files, tmp_ prefixes.
Backup files
.bak, .backup, .old, .orig — already superseded.
Stale files
Not accessed in 90+ days. Unused data.

The syntax

Before

report_v1.docx
report_v2.docx
report_FINAL.docx
report_FINAL_copy.docx
temp_export.tmp
backup_2021.bak
notes_old.txt
~lockfile
budget.xlsx

After

report_FINAL.docx
budget.xlsx
README_EFFICIENCY.md

One noun: efficiency. One proportion: 25/75. One operation: delete everything non-essential.

Subscription

Get Efficiency Filter

Windows · Active while subscribed · 1 machine

Efficiency Filter — Yearly
You save $15 vs monthly
$75/yr
Unlimited runs
Dry run mode
README run report
1 machine license
Active while subscribed

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