SwissDojo

SwissDojo provides a collection of free online tools for working with video and image files, designed with a privacy-first approach. Every tool runs entirely in the browser using WebAssembly, meaning your files never leave your device.

Available tools:

• Video Splitter — Cut videos into clips by duration, file size, or equal parts. Supports fast mode for instant splitting and re-encoding mode for frame-accurate cuts.
• Video Converter — Convert between 12+ video formats including MP4, WebM, MOV, MKV, and AVI.
• Image Cropper — Crop images with pixel-perfect precision using preset aspect ratios (1:1, 16:9, 4:3) or freeform selection. Supports JPEG, PNG, and WebP.
• Audio Extractor — Extract audio tracks from any video file and save as MP3, WAV, FLAC, AAC, or OGG.

Powered by FFmpeg running client-side through WebAssembly, SwissDojo delivers professional-grade results without server uploads, accounts, or watermarks. The tools even work offline once the page has loaded. Whether you're a content creator splitting recordings for social media, an educator trimming lecture videos, or anyone who values keeping their files private, SwissDojo offers a fast and straightforward solution.