Web apps for manipulating files that work entirely client-side
Table of Contents
Privacy concerns have driven a new wave of web applications that process files entirely in your browser. These tools leverage modern web technologies like WebAssembly and the File API to perform complex operations locally, ensuring your data never leaves your device. Here are some examples:
SimpleTool by QuickQuick
Includes utilities for Excel files, PDFs, images, text files (Markdown, JSON, CSV), videos, audios, and more. Everything runs directly in your browser.
Client-Side Kit
Convert images, edit documents, optimize files — powerful utilities that run entirely in your browser. Nothing uploaded. Nothing tracked.
FileSlim
Compress images, PDFs, documents and audios, generate QR codes, convert between different formats. No servers. No sign-up. No limits.
brevtool
120+ tools that process PDFs, images, video, code, and data entirely in your browser. Nothing uploaded. Nothing tracked.
Toolbox
Process files entirely in your browser. Built with privacy and performance in mind. No signup, no ads, no tracking. Your files are never uploaded to our servers.
omne
Your browser is the toolkit. Convert, edit, generate — all in your browser. Files never leave your device.
Fernwork
Fernwork is a free suite of productivity tools that run entirely in the user’s browser. Documents and data you process are not transmitted to any server.
yourbrowsercandoit
Free PDF, image, video, text and developer tools that run on your device. Nothing gets uploaded.
Convrs
Convert files to different formats. All conversions happen directly in your browser. Your files never leave your device.
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