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RRename.Tools

A powerful browser-based bulk file renaming tool. Supports regex, rule chains, live preview — all processing done locally with complete privacy.

Local file processing · No file uploads

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Guides

Practical file renaming guides

Learn reliable workflows for cleaning up photos, media libraries, downloads, and archive folders with live preview and local processing.

By task

  • Bulk file renaming basics: import, preview, execute
  • Bulk Rename Files with Regex: Examples & Patterns
  • Create stable filenames with sequence numbering
  • Add a Prefix or Suffix to Multiple Filenames
  • Replace Spaces in Filenames with Underscores or Hyphens

By material

  • Batch Rename Photos by Date & Sequence
  • Organize music libraries and video episode filenames

Featured workflows

Two imported camera filenames, before adding rules.

Getting started

Bulk file renaming basics: import, preview, execute

Learn the safest bulk rename workflow: add files, build a rule chain, inspect the preview, resolve conflicts, and execute locally.

9 min read2026-09-21
The fixed-date Tokyo template replaces the name and preserves .JPG and .HEIC.

Photos

Batch Rename Photos by Date & Sequence

Rename camera photos with date prefixes and padded sequence numbers so albums stay sortable and easy to scan.

10 min read2026-09-21
Date capture groups and space cleanup produce invoice_client-a_2026-05-22.pdf.

Patterns

Bulk Rename Files with Regex: Examples & Patterns

Learn practical regex bulk rename patterns for removing clutter, rearranging dates, and extracting useful filename parts.

11 min read2026-09-21

All guides

Getting started

Bulk file renaming basics: import, preview, execute

Learn the safest bulk rename workflow: add files, build a rule chain, inspect the preview, resolve conflicts, and execute locally.

Read guide

Photos

Batch Rename Photos by Date & Sequence

Rename camera photos with date prefixes and padded sequence numbers so albums stay sortable and easy to scan.

Read guide

Patterns

Bulk Rename Files with Regex: Examples & Patterns

Learn practical regex bulk rename patterns for removing clutter, rearranging dates, and extracting useful filename parts.

Read guide

Numbering

Create stable filenames with sequence numbering

Use padded sequence numbers, sorting, and per-folder numbering to create filenames that stay organized everywhere.

Read guide

Media

Organize music libraries and video episode filenames

Clean up music files and video episodes with metadata variables, sequence rules, regex patterns, and TMDb-assisted matching.

Read guide

Everyday tasks

Add a Prefix or Suffix to Multiple Filenames

Batch add project names, client prefixes or version suffixes while keeping original filenames and extensions. Try the rules with sample names before applying them locally.

Read guide

Everyday tasks

Replace Spaces in Filenames with Underscores or Hyphens

Batch replace or remove spaces in filenames, preserve extensions, and handle repeated whitespace. Compare literal replacement with regex using tested examples.

Read guide

Ready to try the workflow?

Open Rename.Tools, add a few sample files, and preview every rule before touching the real filenames.

Start renaming