A free, open-source desktop app that compresses videos and images into tiny sizes using FFmpeg and other tools.
CompressO is a free and open-source desktop application that compresses video and image files into significantly smaller sizes. It solves the problem of large media files consuming excessive storage space and bandwidth by providing an efficient, offline compression tool. The app supports batch processing and includes additional features like trimming and subtitle embedding.
Developers, content creators, and general users who need to reduce media file sizes for sharing, storage, or web optimization without using online services.
Developers choose CompressO because it's completely free, open-source, and works offline, offering a privacy-focused alternative to subscription-based or cloud-dependent compression tools. Its cross-platform availability and use of proven tools like FFmpeg ensure reliable performance.
Convert any video/image into a tiny size. 100% free & open-source. Available for Mac, Windows & Linux.
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Licensed under AGPL 3.0, it offers full source code access and modification without cost, aligning with its philosophy of user freedom and avoiding subscription fees.
Works completely offline with no network requests, ensuring data privacy and independence from online services, as highlighted in the key features.
Provides native installers for Linux, Windows, and macOS, including AppImage and MSI packages, making it accessible across major desktop operating systems.
Includes trim/split, subtitle embedding, and metadata editing alongside compression, demonstrated in screenshots and the feature list for versatile media handling.
Lacks Apple notarization, forcing users to run terminal commands or use Homebrew to bypass misleading security warnings, as admitted in the FAQs due to cost avoidance.
Has known issues on Debian 13 and Ubuntu 24 with no current solution, limiting usability on newer distros because of missing Tauri packages.
Relies on third-party tools like FFmpeg and pngquant via standalone binaries, which may require manual updates or cause version conflicts, though they enable offline operation.