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Batch File Rename Planner - safe local filename cleanup plan

Upload a batch, generate safe new filenames with sequence numbers and case rules, then export a CSV plan.

  • Runs locally
  • Category Generator
  • Best for Checking file type, size, metadata, and obvious mismatch signals before sharing.
Nothing is uploaded. Up to 50 files / 100 MB per batch; text and Base64 tools use lower browser-memory limits.
Output
example rename plan

What this tool does

Batch File Rename Planner helps you design a rename operation before touching the real files. Select a batch, choose a pattern such as {{n}}-{{name}}, normalize names to kebab-case, snake_case, lowercase, uppercase, or keep-as-is, and export a CSV with original name, proposed new name, and shell mv command. It is useful for photo sets, content assets, invoice files, classroom submissions, support attachments, and release artifacts. The tool does not rename or delete anything; it gives you a reviewable plan you can run outside the browser after checking for collisions.

Tool details

Input
Files + Text + Numbers
The page exposes text boxes, numeric controls, file pickers, or structured inputs depending on the tool.
Output
Live result + Copy + Download
The result area focuses on usable output, with copy, download, or preview actions when supported.
Privacy
Browser-side processing
The main tool logic does not call an external API, so inputs normally stay in the current tab.
Save / share
Shareable URL state
Key settings are encoded in the URL so another person can reopen the same setup.
Performance budget
Initial JS <= 34 KB
No WASM budget is declared, keeping the tool quick to open on mobile.
Best fit
Generator · Operations
Category and role tags drive related tools, internal links, and quick fit checks.

How to use

  1. 1. Input

    Paste or drop your content into the tool panel.

  2. 2. Process

    Click the button. All processing is local in your browser.

  3. 3. Copy / Download

    Copy the result or download to disk in one click.

How Batch File Rename Planner fits into your work

Use it before upload, handoff, archive, support review, or any moment where a file needs one local check before it leaves your machine.

File jobs

  • Checking file type, size, metadata, and obvious mismatch signals before sharing.
  • Preparing mixed folders for upload, archive, intake, or review.
  • Keeping sensitive files in the browser instead of sending them to an account-based service.

File checks

  • Do not treat the extension alone as proof of the real file type.
  • Review metadata before a file goes to customers, vendors, or a public page.
  • Keep the original file until the copied, converted, or exported result is verified.

Good next steps

These links move the current task into a more complete workflow.

  1. 1 URL Slug Generator Turn any title into a clean URL slug — lowercase, dashes, ASCII-safe transliteration, multiline batch — browser-only Open
  2. 2 Case Converter Convert text between camelCase, snake_case, kebab-case, PascalCase, Title Case, UPPER, lower — instant, browser-only Open
  3. 3 Duplicate File Finder Upload a batch and find exact duplicate files by SHA hash locally, with a Markdown cleanup report. Open

Real-world use cases

  • Normalize asset filenames

    Generate predictable names for a folder of images, PDFs, or content exports before uploading to a CMS.

  • Review rename commands before running them

    Export shell commands and inspect the CSV plan before applying changes outside the browser.

Common pitfalls

  • The tool does not detect every collision after filesystem normalization; review the CSV.

  • Shell commands should be run only in the intended directory.

Privacy

Only filenames and metadata are read locally. The plan can still reveal private project or customer names.

FAQ

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Made by Toolora · 100% client-side · Updated 2026-06-13