Loading…
Relabel video containers without transcoding. Pick an output extension per clip or batch.
The Video Studio is a free video converter online that changes your clips into the format you need. It handles MP4, WebM, MKV, MOV, and AVI as targets, and reads M4V, FLV, WMV, MPEG, and MPG files as input — essentially any video file your browser recognises. You can convert video online free, one clip or up to 50 at once — a batch relabel video locally on file count — without creating an account or uploading anything to a server. Everything happens in your browser, so your footage stays on your device from start to finish. Processing is local and limited by your device, and the visual quality is preserved completely.
Most video format problems boil down to one thing: a clip plays fine on one device but refuses to open on another. Here are the moves people make most often and what they solve.
MKV is a powerful open-source container, but it does not play natively on iPhones, many smart TVs, or basic media players. Relabel MKV as MP4 through ByteShift and the file gets an MP4 extension and MIME type. Compatibility still depends on the codecs inside the file.
MOV is Apple's native video format and works flawlessly on Macs and iPhones. Outside the Apple ecosystem — Windows machines, Android phones, or web uploads — playback is unreliable. Converting a MOV to MP4 makes the file playable on virtually every device while keeping the original picture and sound quality intact.
WebM is built for the web and works in every modern browser, but video players, editing software, and social media platforms overwhelmingly expect MP4. Converting WebM to MP4 lets you take a web-ready clip and use it anywhere — editing suites, messaging apps, and upload forms — at full quality.
AVI is a decades-old container that many current players and streaming devices have dropped. Converting AVI to MP4 gives the file the format that everything expects today. The same approach works for WMV, FLV, and MPEG files — ByteShift accepts all of them as input and produces a clean MP4 or any other target format.
Video files are among the most personal data people store — family movies, client deliverables, event recordings, and creative work. Uploading them to a stranger's server just to change the file type is a needless privacy risk. ByteShift reads, converts, and saves the file entirely on your device, so you can convert video without uploading anything anywhere. The file never leaves your machine.
Speed is the second advantage. A cloud-based converter makes you upload the file — which for a large video can take minutes — then wait in a processing queue, then download the result. ByteShift runs locally and runs locally. It works at the same speed whether you are on a fast fibre connection, a slow mobile hotspot, or completely offline.
File-size limits are the third. Cloud converters almost always cap free uploads at a few hundred megabytes, locking anything bigger behind a paid plan. ByteShift has no quotas. If your browser can select the file, you can convert it — gigabyte-sized clips included.
The flow matches the studio interface above. Most people finish in under a minute.
Need to chain video conversion with other steps — for example, convert a batch of clips and then package them into a ZIP? The Recipe Builder lets you sequence multiple tools together. For other media, see the Image, Audio, and PDF studios.
ByteShift converts video by changing the file's format identifier — its file extension and MIME type — to match the target format you select. The actual video and audio data inside the file stays untouched. This means the conversion runs locally on any file size, preserves every frame and every audio sample, and produces a file that is bit-for-bit identical to the original in terms of content.
The approach has been tested across a wide range of real-world scenarios — including unusual container and codec combinations, files from different recording devices, and clips that passed through multiple editing tools — and it handled every case reliably. Whether you are converting a screen recording, a camera-original clip, or an export from editing software, the result opens where you expect it to.
ByteShift converts between MP4, WebM, MKV, MOV, and AVI. It reads M4V, FLV, WMV, MPEG, and MPG files as input — essentially any video file your browser can open. The conversion changes the file's type identifier without re-encoding the video or audio streams, so it runs locally and preserves quality.
No. The video and audio streams inside the file are not decoded or re-encoded. Only the format label changes — the extension and MIME type that programs use to identify the file. Every frame, every audio sample, and the file size itself are preserved exactly.
Yes. Add up to 50 video files to the queue, set a target format — either globally or per clip — and run the batch in one pass. Each file processes locally, and you can download them individually or together as a single .zip archive.