Kopivo
Private web tools: 100% client-side, no servers, no costs.
What it does
Kopivo is a privacy-first hub of web tools where all processing happens directly in your browser. Unlike other platforms, your files and data never leave your device, ensuring total security and zero server costs. We offer powerful utilities across four key verticals: PDF, Media, Security, and Developer tools. It’s fast, free, and built for users who refuse to compromise their data privacy.
Does the same job
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Privacy First Tools - Free and PrivateFeb 2026 · ▲10Free online tools for images, PDFs & more - 100% private
- TPToolKuai – Privacy-first, 100% client-side media toolsJan 2026 · toolkuai.com · ▲8
Hi HN, I’m Linn, the creator of ToolKuai (https://toolkuai.com). Like many of you, I’ve always been wary of "free" online file converters. Most of them are black boxes: you upload your private documents or images to a remote server, and you have no idea where that data ends up or how it’s being used to train models. I wanted to build a suite of tools (Video/Image compressor, OCR, AI Background Remover) that runs entirely in the browser. No files ever leave your machine. The Tech Stack To make this performant enough to rival server-side processing, I leaned heavily into modern…
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