Add Timestamps to Filenames: Easy Tools to Append Date and/or Time

Add Date and/or Time to Filenames: Best Software Tools for Batch Renaming

Why add date/time to filenames

• Improves versioning and sorting.
• Makes backups and photo archives easier to search.
• Prevents name collisions when merging files.

Top tools (cross-platform and single-platform picks)

• Bulk Rename Utility (Windows) — Powerful, free, many date/time tokens, steep UI.
• Advanced Renamer (Windows) — Scriptable presets, supports EXIF dates for photos.
• NameChanger (macOS) — Simple GUI, date/time insertion, good for casual mac users.
• A Better Finder Rename (macOS) — Feature-rich, handles metadata dates, reliable for pros.
• Command-line: PowerShell (Windows) / bash with rename/exiftool (macOS/Linux) — Fully scriptable, ideal for automation and complex rules.
• FreeFileSync / Syncovery (cross-platform, for backups) — Not primary renamers but can append timestamps during sync/backup tasks.

Key features to look for

• Date source options: file system modified/created, EXIF metadata (photos), or custom date.
• Formatting flexibility: custom date/time formats, separators, position (prefix/suffix).
• Batch preview: show final names before applying.
• Undo/backup: revert changes or create backups automatically.
• Filtering & rules: include/exclude by extension, date range, or regex.
• Scripting/API: for automation in workflows.

Recommended presets and examples

• Photo archive (use EXIF): YYYY-MM-DD_HH-MM-SS_originalname.jpg
• Document versioning: originalname_YYYYMMDD.ext
• Quick timestamp suffix: originalname_YYYY-MM-DD_HHMM.ext

Quick how-to (generic steps)

1. Open tool and add files/folders.
2. Choose date source (modified/created/EXIF/custom).
3. Set format and position (prefix/suffix/replace).
4. Preview results.
5. Run rename and verify; use undo if available.

When to use command-line instead

• Need repeatable automation, integrate into scripts, or process very large sets of files. Use PowerShell’s Get-ChildItem + Rename-Item or exiftool for photo timestamps.

If you want, I can: provide step-by-step instructions for a specific tool (name which), or generate sample PowerShell or bash/exiftool commands.