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Free, private file tools that run entirely in your browser.
No uploads. No servers. Just code running on your device.
FileMint started as a response to a security paradox I encountered during my high school computer science finals. I needed to merge several encrypted PDF documents, but every "online" tool I found required me to transmit those bytes to an unknown cloud server.
As a student developer obsessed with the low-level architecture of the web, I knew this wasn't necessary. Modern browsers are not just document viewers - they are high-performance computing environments. I realized that by combining React for the UI and Rust-compiled WebAssembly for the heavy lifting, I could build a tool that executes complex file logic entirely within the local V8 engine sandbox.
I built FileMint to prove that privacy is not just a policy - it is an engineering choice. By eliminating the back-end processing layer, I created a trustless system. I do not have to ask you to trust me with your data, because my code is architecturally incapable of seeing it. This zero-server-upload model is the core of our technical DNA.
"I engineered FileMint to bypass the centralized server paradigm. Your data stays precisely where it belongs: on your disk."
View Full Technical Bio →FileMint runs on a high-performance stack of React, Rust, and C++ compiled to WASM. I chose this architecture because it's the only way to keep your files on your device while still performing heavy-duty processing.
Most online tools send your data to a server in the cloud. My tools use WASM to bring that processing to you. By porting professional-grade libraries like libheif or PDF.js to run in the browser, I can extract text or convert photos without ever seeing your sensitive documents. It's fast, private, and works even if you go offline.
Instead of uploading files, my code reads them into ArrayBuffer objects. This keeps your data strictly in your browser's private memory. When you finish a task, the memory is cleared. No footprint, no logs, and no traces on our end.
I built FileMint to be transparent. Non-essential scripts are disabled by default or rely on your consent. My priority is providing a tool that works for you, not building a database of your habits.
AI Engineering Student & Privacy Architect
I'm a student developer dedicated to building the next generation of privacy-transparent tools. I believe the future of productivity lies in the browser, specifically through the use of client-side execution to bypass traditional, centralized data-collection models.
When I'm not studying for midterms, I'm usually digging into the V8 engine source or exploring how WebAssembly can be used to port high-performance desktop C++ and Rust libraries to the web. FileMint is my primary contribution to this vision of a more private, decentralized internet.
Built with privacy, speed, and user experience as our core principles
Everything happens right in your browser. I don't want to see your files, and my code literally can't send them anywhere. Your data stays on your device, just like it should.
Waiting for files to upload is the worst. Since this runs on your own computer, it's instant. Even huge PDFs or photos process as fast as your CPU can handle.
I'm a student, not a corporation. I built this to help people, so there are no paywalls, subscriptions, or "pro" versions. Just tools that work.
I hate signing up for stuff just to do one quick thing. You don't need an account or an email to use FileMint. Just open the page and go.
If you lose your Wi-Fi, the tools still work! Once the page loads, you can go into airplane mode and keep editing your files. Pretty cool, right?
Analytics are limited and consent-based. The product is focused on utility first, with transparent controls for non-essential scripts.
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