Convert any file instantly & securely
The professional grade web file converter. 100% client-side, privacy-focused, with no file size limits and no registration.
Why use Flux?
Fastest Browser-Based Tool
Instant file conversion without server delay.
All-in-One File Converter
Universal utility for developers and professionals.
Free Unlimited Batch Converter
No file size limits and no registration.
Secure, No Upload Required
100% client-side, sensitive data stays on device.
The browser-based file converter for sensitive data. Works entirely offline after loading.
114+
converters
254+
inputs
9
categories
100%
secure
The ultimate privacy-focused file conversion tool
Welcome to Flux, the safest way to convert files online. Unlike traditional cloud converters that require you to upload your sensitive documents to their servers, Flux operates entirely client-side. This means your files never leave your device.
Whether you need an online converter with no file size limit or a secure browser-based file converter for sensitive data, our Advanced WASM and Canvas technology ensures instant file conversion without server delay.
- Free unlimited batch file converter: Convert as many files as you need, simultaneously.
- No registration file converter online: Start converting immediately, no account required.
- Professional grade web file converter: Support for 300+ formats across developers, creators, and enterprise data.
Why use Flux?
Fastest Browser-Based Tool
Instant file conversion without server delay.
All-in-One File Converter
Universal utility for developers and professionals.
Free Unlimited Batch Converter
No file size limits and no registration.
Secure, No Upload Required
100% client-side, sensitive data stays on device.