Untracked › Free tools › Bulk-renaming files

Rename multiple files at once — free, without uploading them

Thirty photos named IMG_2041, IMG_2042… and you want barcelona-01, barcelona-02… Renaming by hand is tedious and error-prone. Here's how to rename a whole batch in one pass — with a preview of every new name before anything changes, free, without uploading anything.

Open the free bulk renamer →
Free · Unlimited small batches, free
Nothing uploaded · no account · works with Wi-Fi off

How to rename files in bulk here (free)

  1. Open the free bulk file renamer.
  2. Pick the folder (or drop the files in).
  3. Build your pattern: prefix/suffix, sequence counters, find & replace, date stamps, case normalization — combined freely. Every new name is previewed live before anything happens.
  4. Apply. A rename log with undo information is downloadable.

Naming patterns that cover 90% of real needs

GoalPatternResult
Client-ready photo namesprefix + counteracme-01.jpg, acme-02.jpg…
Strip camera clutterfind & replaceIMG_ → holiday-
Date-sort a scanned piledate stamp + counter2026-09-01-01.pdf…
Fix inconsistent casingcase normalizationReport.DOC → report.doc

The preview is the safety net

Bad batch renames are how files get lost. That's why nothing here renames blind: you see the complete before → after list first, and the tool writes a rename log with undo information as it applies. If a pattern turns out wrong, you see it in the preview — not after the fact.

Why not just do it in the file manager?

You can — if your operating system's renamer handles counters and find/replace (most do one, not both, and rarely with a preview). A browser-based tool gives the same capabilities with a full live preview and a downloadable undo log, and like everything on this site, your files never leave your machine. Rename with the Wi-Fi off if you like.

28 files — preview on this device:
  IMG_2041.jpg → barcelona-01.jpg
  IMG_2042.jpg → barcelona-02.jpg
  ✓ preview confirmed — never uploaded, 0 bytes sent

What a rename pass looks like (illustration — demo files, never real data):

Like the tool? Own it.

The free page handles unlimited small batches (up to about 20 files). The €5 Bulk File Renamer download removes the cap and adds saved presets and the same tool as a single file — offline forever on any computer. One-time payment — no subscription.

Get Bulk File Renamer — €5 once

Questions people ask

Do the files get uploaded before renaming?

No. The folder picker runs locally and the renaming logic executes inside the page. Your files stay on your disk — the tool works with the network cable unplugged.

Can I see the new names before applying?

Yes — every rename is previewed before anything changes, and a log with undo information is written when you apply.

How many files can I rename at once?

The free page handles unlimited small batches (up to about 20 files). The €5 download removes the cap and adds saved presets.

What's the difference between this free page and the paid download?

The free page does unlimited small batches on this website. The €5 download is the same tool as a single HTML file — no cap, offline forever, on any computer you own.

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