About Blocki

Welcome to About Blocki – Private In-Browser Tools. Blocki is a comprehensive collection of free, private, browser-based multimedia tools designed for creators, developers, designers, and everyday users. Our mission is to make file conversion, compression, and generation tools accessible to everyone without compromising on privacy, security, or quality. We believe that simple tasks like converting a video, extracting sound, or compressing an image should not require uploading personal data to external servers.

Traditional online converters upload your personal files to remote servers. This introduces security risks, privacy concerns, and latency due to file upload and download times. Blocki eliminates these issues by running all code client-side. Using modern technologies like WebAssembly, FFmpeg, and the Web Audio API, Blocki performs all computations directly on your computer. Your files stay on your device the entire time.

Our Core Principles

Privacy First: We do not collect, store, or view your files. All processing is completed inside your browser sandbox. Your data remains fully secure.
Completely Free: There are no premium accounts, no daily limits, no subscriptions, and no watermarks on your files. Every tool is available for everyone.
High Performance: We use near-native compilation technologies to run demanding operations like video compression, audio splitting, and image conversion at maximum speed.

Supported Technologies

By leveraging cutting-edge web technologies, we bring desktop-class tools to the browser. Blocki uses WebAssembly to execute C and C++ libraries at high speed, FFmpeg for audio/video codec encoding, and the Web Audio API for real-time sound processing and visualization.