Free File Tools, Zero Uploads
Rename files in bulk, change extensions, and organize your digital life — all inside your browser. No uploads, no servers, no sign-up required. Your files stay on your device, always.
Available Tools
Choose a tool below to get started. Each one runs locally in your browser for maximum speed and privacy.
Bulk File Renamer
Rename multiple files at once directly in your browser. Find & replace text, add prefixes or suffixes, change letter casing, and insert sequence numbers — all without uploading a single file.
Batch Change File Extensions
Change file extensions in bulk directly in your browser. Convert .txt to .md, standardize casing from .PNG to .png, add missing extensions, and more — all privately and instantly.
How FileTango Works
Three simple steps to rename or modify your files — no technical skills required.
Select Your Files
Click the file picker to choose one or many files from your computer. Everything stays local — no upload occurs.
Configure Rules
Set your renaming options: find & replace text, add prefixes or suffixes, change casing, insert sequence numbers, or swap extensions.
Preview & Download
Review a live preview of all changes. When satisfied, download a ZIP containing your renamed files. Originals remain untouched.
Why Choose FileTango?
Built from the ground up with privacy, speed, and simplicity as core principles.
Complete Privacy
Your files are processed entirely within your browser. They are never sent to any server, never stored remotely, and never visible to anyone but you. We physically cannot access your data.
Blazing Fast
Because processing happens locally, there is no upload or download delay. Rename thousands of files in seconds, regardless of your internet connection speed.
100% Free
All FileTango tools are free to use with no hidden fees, no premium tiers, and no limits on the number of files you can process per session.
Works Offline
Once the page loads, FileTango tools work without an internet connection. Process sensitive files on an air-gapped network with complete confidence.
Cross-Platform
FileTango runs in any modern web browser — Chrome, Firefox, Safari, or Edge — on Windows, macOS, Linux, and mobile devices. No installation required.
Non-Destructive
Your original files are never modified. FileTango creates renamed copies and packages them in a ZIP archive. If something goes wrong, your originals are safe.
Who Uses FileTango?
Professionals, students, and everyday users who value privacy and efficiency.
📸 Photographers
Organize thousands of photos with date prefixes, location tags, and sequential numbering — all in one batch.
💻 Developers
Standardize asset names across projects, convert extensions for build pipelines, and clean up legacy file naming.
🎓 Students & Teachers
Rename assignment submissions, organize lecture recordings, and prepare materials with consistent naming schemes.
🏢 Office Workers
Tidy up email attachments, prepare files for archival, and standardize document names before sharing with colleagues.
Frequently Asked Questions
Everything you need to know about using FileTango.
Are my files uploaded to a server?
No. Every FileTango tool runs entirely inside your web browser. Your files are read, processed, and packaged locally on your device. We have no servers that receive, store, or even see your files.
Is FileTango really free?
Yes, all tools are completely free to use with no limits on the number of files or sessions. FileTango is supported by non-intrusive advertising.
Do I need to install anything?
No installation is required. FileTango works in any modern web browser — Chrome, Firefox, Safari, or Edge. Simply open the page and start using the tools.
What browsers are supported?
FileTango works in all modern browsers including Google Chrome, Mozilla Firefox, Microsoft Edge, and Apple Safari. We recommend keeping your browser updated for the best experience.
Can I use FileTango on my phone or tablet?
Yes. FileTango is fully responsive and works on mobile devices. However, for the best experience when processing many files, we recommend using a desktop or laptop computer.
What file types can I process?
FileTango works with any file type. Since the tools operate on file names and extensions rather than file contents, they support documents, images, videos, code files, archives, and every other format.
Ready to Organize Your Files?
Pick a tool and start renaming or converting in seconds. No sign-up, no upload, completely free.