FILE
CHECK
Duplicate Finder + Bulk Rename — Client-Side, No Upload
v1.0 // Hylas Security
☀ Day
Duplicate Finder
All Files
Bulk Rename
Script Export
📁
Drop Files or Folder
SHA-256 hashed client-side. Nothing leaves your machine.
Select Files
Select Folder
Re-scan
Expand All
Collapse All
Select Dupes
Copy List
Clear
🔍
Load files to find duplicates
Add Files
Add Folder
Hash All (SHA-256)
Copy TSV
Clear
📂
No files loaded
Add Files
Add Folder
Clear
Find & Replace
Find (text or regex)
Replace with
Use regex
Case insensitive
Prefix / Suffix
Add prefix
Add suffix (before ext)
Numbering
Add sequential number
Position
Prefix (before name)
Suffix (before ext)
Replace name
Start at
Pad digits
Separator
Extension
Change extension
New extension
Case Transform
No change
lowercase
UPPERCASE
Title Case
Sort Order (for numbering)
By name (A→Z)
By name (Z→A)
By extension
By size
By date
✏️
Load files to preview renames
PowerShell
Bash
CMD
Copy Script
Download
Script generated from current Bulk Rename settings. Review before running. Run from the directory containing the files.
// Set up rename rules and generate script