Dashcam footage, client deliverables, personal recordings. AES-256 encryption handles even multi-gigabyte videos without uploading a single byte.
MP4, MOV, AVI, MKV , any format, any size
Processes video files of any size using chunked encryption. Real-time progress with speed indicator.
A single leaked video can end careers, violate privacy laws, or destroy trust. Whether it is surveillance footage under regulatory requirements, unreleased creative work, or personal recordings, video files demand the same encryption standard used by intelligence agencies.
Most "video encryption" services require you to upload your footage to their servers. For a 4GB video, that means 20+ minutes of upload time on a fast connection , and a copy of your file now sits on someone else's server. FilesLock processes everything locally using your browser's native Web Crypto API.
Video files are the largest files most people handle. FilesLock shows real-time progress with speed indicators so you always know exactly how long encryption will take. No timeouts, no upload failures, no server errors.
There is no artificial limit. Since encryption happens in your browser, the practical limit depends on your device's available memory. Most modern computers handle files up to 2-4 GB smoothly. For very large files, close other browser tabs to free up memory.
Speed depends on your device's processor. Typical speeds: 20-60 MB/s on modern hardware. A 1 GB video takes roughly 20-50 seconds. The real-time progress bar shows exact speed and estimated completion.
Yes. FilesLock encrypts raw bytes regardless of video codec or resolution. 4K ProRes, H.265/HEVC, RAW cinema files , all work the same way.
Only slightly. AES-256-GCM adds a small header (salt, IV, authentication tag) of about 60 bytes. For a 1 GB video, the overhead is effectively zero.