File Renamer
$4.99 day pass · or $9.99/moRename dozens of files at once with patterns, numbering, or find-and-replace.
How to use File Renamer — step by step
- 1Open the tool you want. Done — this page is saved in your browser, so it opens with no connection.
- 2Turn on airplane mode (optional).Anyone can claim a tool is private. Airplane mode is what proves it — with the connection off, there's nowhere for your file to go. Skip it and everything still works, but you won't have the added privacy protection of a 100% internet disconnect.Press the airplane-mode button on your own phone, tablet or laptop.The switch is on your device, not on this page. On some laptops and phones the airplane button leaves Wi-Fi or Bluetooth running — if the instrument still shows a connection, turn those off yourself. It reads Offline the moment the connection is really gone.
- 3Add the files you want to rename.
- 4Set your rule — a name pattern, find-and-replace, or automatic numbering.
- 5Check the new names in the preview.
- 6Download the renamed files.
About File Renamer
File Renamer is a browser-based online everyday file tool from Relavancy. Rename dozens of files at once with patterns, numbering, or find-and-replace. Unlike most web-based tools that upload your files to a remote server, File Renamer runs entirely in your browser — your documents, photos, and text never leave your device. It works on iPhone and Android as well as desktop, with no app to install and no account to create.
Why use File Renamer?
- Batch rename — rename batches of files.
- 100% private: your files are processed in your browser and never uploaded to a server.
- No login, no account, no watermarks on your output.
- Works on iPhone, Android, Mac, and Windows — any modern browser, no install.
- Included with a $4.99 day pass or $9.99/month plan — try the free tools first to feel the quality.
- Instant output you can download or copy in one tap.
Common uses for File Renamer
- Quickly fix filenames, sizes, and metadata before sharing files online.
- Everyday tasks — QR codes, compression, renaming — done in seconds.
- Anyone who needs file renamer without installing software or creating an account.
Is File Renamer right for you?
- Runs entirely in your browser — nothing is saved between visits, so download your result before closing the tab.
- Your day pass or subscription unlocks this tool across all your devices, but your processed files are never stored — each session starts fresh.
Frequently asked questions
- Is the file renamer free?
- It's included with a $4.99 day pass or $9.99/month plan. Eight tools are free with no signup: QR Code Generator, QR Code Scanner, Image Compressor, Read Aloud, PDF to Word, Word to PDF, PDF Merge, and PDF Compress.
- Are my files uploaded anywhere?
- No. Renaming happens entirely in your browser. Your files never leave your device.
- Can I rename files in place on my computer?
- The tool outputs a zip of renamed copies. It doesn't rename the originals directly on your disk.
Pricing & privacy
File Renamer is part of Relavancy's suite of 38 browser utilities. Eight tools — QR Code Generator, QR Code Scanner, Image Compressor, Read Aloud, PDF to Word, Word to PDF, PDF Merge, and PDF Compress — are free with no signup. Every other tool is included with a $4.99 day pass or $9.99/month plan. Because processing happens locally in your browser, your files are never uploaded to a server, making File Renamer a private, secure choice for sensitive documents.