Video tools
18 toolsConvert, compress and trim videos on your device.
- Trim VideoKeep only the part of a clip you need, with its sound, in the same format it came in. Nothing leaves your device.
- Mute VideoStrip every audio track from a video and keep the picture exactly as it was recorded. Runs on your device.
- Video to GIFPick a few seconds of any video and get a silent, endlessly looping GIF that plays wherever images do.
- Convert VideoChange a video's format so it plays on the device, site or editor you need, without handing the file to a server.
- Screen RecorderCapture a screen, a window or a single tab, with sound and narration, straight from your desktop browser. The recording stays on your computer.
- Webcam RecorderTurn on your camera, check how you look, and record a clip with sound that is saved straight to your device.
- Compress VideoShrink a video so it fits an email, a chat app or an upload limit, with a preset or a target size, without sending it anywhere.
- Resize VideoScale a video to a standard resolution or to the exact width and height a platform asks for, in the format it already has.
- Crop VideoRemove black bars, stray edges or everything outside the part of the frame that matters, and keep the clip's full length and sound.
- Rotate VideoTurn a video the right way up, or mirror it, without losing quality when the format allows it.
- Video Speed ChangerMake a clip faster or slower and keep voices sounding natural, then save it in the same format, all on your device.
- Reverse VideoRewind a clip for real: the last frame becomes the first, ready to share as an ordinary video file.
- Merge VideosPut clips from different phones, cameras and apps end to end in one file, with their sound, without uploading any of them.
- Add Audio to VideoLay a music track or narration over your footage, keep or replace the original sound, and leave the picture exactly as it was.
- Extract Frames From VideoTurn moments of a video into full-resolution still images, one exact frame or a whole series, downloaded together as a ZIP.
- GIF to MP4Turn a heavy animated GIF into a light, sharp video file that social networks, presentations and web pages accept.
- SRT to VTT ConverterPaste or open a subtitle file, get it back in the format your player or platform expects, with the timing checked and fixable.
- Burn Subtitles Into VideoDraw your subtitles permanently into the picture, so they appear wherever the video is played, muted autoplay included.
How these tools work
Video files are large and often personal, which makes uploading them to an online converter slow and uncomfortable. These tools run FFmpeg, the open-source engine behind many desktop video apps, compiled to WebAssembly so it works inside your browser. The engine, about 31 MB, is downloaded once from this site the first time you press Convert and then cached; your video itself never leaves your device.
Convert Video changes MOV, MKV, WebM, AVI or MP4 files into MP4, WebM, MOV or AVI with three quality presets. Trim Video cuts the start and end off a clip, either as a fast lossless cut or a frame-accurate one. Mute Video strips every audio track while copying the picture untouched, so it is quick and loses nothing. Video to GIF turns up to 30 seconds of a clip into a looping GIF at the frame rate and width you pick.
Compress Video and Resize Video make clips fit email and upload limits, while Crop, Rotate, Speed, Reverse and Merge Videos cover quick edits. Add Audio to Video lays music or a voice-over on top, Burn Subtitles hardcodes captions, SRT to VTT converts subtitle files, and Screen Recorder and Webcam Recorder record straight to a file.
Each video can be up to 500 MB, although files over 200 MB may need more memory than your browser allows. Speed depends on your device: a laptop handles a few minutes of HD footage comfortably, while long or 4K files take longer, especially on phones.
Frequently asked questions
Is my video uploaded to convert it?
No. The conversion runs in your browser with FFmpeg compiled to WebAssembly. Only the converter itself is downloaded from this site the first time you use it; your video is never transmitted.
Why does the first conversion take longer?
The video engine is about 31 MB and downloads the first time you use a video or audio tool. Your browser keeps it, so later conversions start straight away.
Which format plays everywhere?
MP4 is the safest choice: Convert Video encodes it with H.264, which phones, browsers, editors and social sites all accept. WebM is efficient on the web but less widely accepted by upload forms.