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Description
Free! This will make your videos smaller in size. Choose the quality of the video output Compress Video Files — shrink big videos right in your browser, with nothing ever uploaded. Compress Video Files is a free, privacy-first video compressor that makes your videos dramatically smaller without sending them anywhere. Every byte is processed locally on your own computer — your footage never leaves your browser, never touches a server, and never waits in an upload queue. No accounts, no watermarks, and no file-size caps imposed by a website. WHY PEOPLE USE IT Video files are huge, and almost everything has a limit: email attachments, messaging apps, Discord, WhatsApp, Slack, course uploads, web forms, and storage quotas. This extension turns a multi-hundred-megabyte clip into something small enough to send in seconds — while keeping it looking good. POWERED BY REAL COMPRESSION This release rebuilds the engine from the ground up. Under the hood it now runs a modern WebAssembly build of FFmpeg with true H.264 video encoding (and VP9 for WebM), so your videos actually get smaller — often dramatically — instead of being re-saved at a similar or even larger size. Audio is re-encoded efficiently too, and MP4 output is web-optimized so it starts playing instantly. THREE SIMPLE CHOICES No confusing codec menus. Just pick the result you want: • Smallest file — maximum compression, perfect for email and messaging. • Balanced (recommended) — the best size-to-quality trade-off for everyday use. • High quality — gentle compression that keeps near-original clarity. Each option shows an instant size estimate before you start, so there are no surprises. IT WILL NEVER MAKE YOUR FILE BIGGER A lot of compressors quietly hand back a file that's the same size — or larger. This one won't. If your video is already efficiently compressed, the extension tells you and keeps your original untouched, so you never end up worse off than you started. SEE EXACTLY WHAT YOU SAVED Watch real-time progress with a live percentage as it works — no fake spinner, no guessing whether it froze. When it's done, you'll see a clear before-and-after: original size, new size, and the exact percentage saved. One click downloads your compressed video. DESIGNED TO BE EFFORTLESS • Drag and drop a video anywhere on the page, or click to browse. • A clean, modern, single-screen interface — no multi-step wizard to wade through. • Cancel any time mid-compression if you change your mind. • It remembers your preferred quality setting for next time. • Works fully offline once installed. BROAD FORMAT SUPPORT Compress videos in all the common formats, including MP4. Whatever your camera, phone, or screen recorder produced, there's a good chance it just works — and your compressed file keeps a format you can play and share anywhere. 100% PRIVATE BY DESIGN Because all the work happens inside your browser using WebAssembly, your videos are never transmitted over the internet. There is no upload step, so there is nothing for a third party to store, leak, or scan. This is genuinely local software that happens to live in your browser — ideal for sensitive, personal, or confidential footage you would never want to hand to an online service. WHAT'S NEW IN THIS VERSION • A brand-new, modern interface that is faster and far simpler to use. • A completely new compression engine with real, efficient H.264 results. • Live progress, time remaining, and a Cancel button. • A clear before-and-after size and percentage-saved summary. • A built-in safeguard that never returns a larger file. • Drag-and-drop, remembered settings, and a friendly warning for very large files. • Clearer messages when something goes wrong — plus an automatic fallback engine so more files succeed. FREE AND OPEN Compress Video Files is free to use, with no watermark, no trial, and no sign-up. It is built on FFmpeg and other open-source software; full open-source license information is included in the extension (see the "Licenses" link in the app). HOW TO USE 1. Click the toolbar icon to open Compress Video Files. 2. Drag in a video — or click to choose one from your computer. 3. Pick Smallest, Balanced, or High quality. 4. Click Compress and watch the progress. 5. Download your smaller video. That's it. A quick note: because everything runs on your own device, very large or very long videos depend on your computer's available memory and may take a little longer than a cloud service — but in exchange, your files stay completely private and you are never stuck in an upload queue. Shrink it. Send it. Keep it private. Install Compress Video Files and take control of your video sizes today.