About FileTango
FileTango is a collection of free, privacy-first file utilities that run entirely in your web browser. We believe that simple file operations like renaming and changing extensions should not require installing software, creating accounts, or uploading files to unknown servers.
Our Mission
Our mission is to provide fast, free, and privacy-respecting file utilities that work without compromise. Too many online file tools require you to upload sensitive documents to third-party servers, creating unnecessary privacy risks and adding frustrating upload delays. FileTango takes a different approach: every operation runs locally in your browser using modern web APIs.
We started FileTango because we needed a reliable way to batch-rename files without installing desktop software or trusting an unknown web service with our files. We built the tool we wanted to use, and decided to share it with everyone.
Our Values
🔒 Privacy by Architecture
We don't just promise privacy — we enforce it. Our tools physically cannot access your files because all processing happens in your browser. There is no server to breach, no database to leak.
⚡ Speed Without Compromise
Local processing means zero upload time. Rename thousands of files in seconds, not minutes. Your internet speed is irrelevant — only your device's power matters.
🎯 Simplicity First
Every tool is designed to do one thing well. No bloated interfaces, no confusing options, no learning curve. Select files, configure rules, preview, and download.
💰 Free for Everyone
All FileTango tools are free to use with no hidden fees, no premium tiers, and no file count limits. We sustain the project through non-intrusive advertising.
How It Works Under the Hood
When you select files in FileTango, the browser's File API reads their names and metadata without sending any data over the network. Your renaming rules are applied using pure JavaScript functions that run in your browser's main thread. The preview table is generated instantly from the computed results.
When you download, FileTango uses the JSZip library to create a ZIP archive entirely in browser memory. The archive is then offered as a download using the browser's native download mechanism. At no point do your files, their names, or their contents leave your device.
This architecture means FileTango works offline after the initial page load. You can disconnect from the internet, process your files, and only reconnect when you're done. This makes it ideal for working with sensitive or confidential files.
Technology Stack
FileTango is built with modern, well-maintained open-source technologies:
Frequently Asked Questions
Who is behind FileTango?
FileTango is an independent project created by a small team of developers who value privacy and simplicity.
We use these tools ourselves every day and are committed to keeping them free and well-maintained.
How do you make money if the tools are free?
FileTango is supported by non-intrusive display advertising. We do not sell user data (we don't collect any),
and we do not use aggressive ad placements that interfere with the user experience.
Will you add more tools?
Yes! We are actively developing new file utilities. If you have a suggestion for a tool you'd like to see,
please reach out through our contact page.
Can I use FileTango for commercial purposes?
Absolutely. FileTango is free for personal, educational, and commercial use. There are no restrictions
on how you use the tools or the files you process with them.
Get in Touch
Have feedback, a feature request, or a question? We'd love to hear from you. Visit our contact page to reach out, or explore our guides section for tutorials and tips on getting the most out of FileTango.