Every MediaVault tool
21 video and audio tools that run inside your browser tab. Files are read from your disk into local memory, processed on your own CPU, and saved straight back — none of them upload your media to a server.
Video Converter
Convert MOV, MKV, AVI and WebM to MP4 locally.
Discord Video Compressor
Get any clip under Discord's 8MB or 25MB limit.
Audio Editor
Denoise, pitch-shift and clean up recordings.
Video Compressor
Shrink video file size locally with FFmpeg — no upload, no watermark.
AI Subtitle Generator
Auto-generate SRT captions with Whisper running on your own device.
Video to GIF
Turn clips into looping GIFs with control over frame rate and size.
Audio Extractor
Pull the audio track from any video and save it as MP3 or WAV.
Vocal Remover
Separate vocals from backing tracks with local phase cancellation.
Screen Recorder
Record screen or webcam in-browser and keep the file on your device.
Video Resizer
Reformat video to portrait, square or landscape for any platform.
Silence Remover
Detect quiet gaps and auto jump-cut footage for a tighter edit.
Subtitle Converter
Convert captions between SRT, VTT, ASS and TXT.
Audio Denoiser
Strip hum, hiss and rumble out of voice recordings.
Video Merger
Join multiple clips into a single file without re-encoding.
Video Speed Changer
Speed up or slow down clips while keeping audio in sync.
Video Watermarker
Overlay text or a logo onto video for branding.
Video Splitter
Slice long recordings into equal parts or custom segments.
Thumbnail Extractor
Grab a high-res still frame at any timestamp.
Video Meme Generator
Add impact captions and caption boxes to clips.
Audio Visualizer
Turn audio into animated waveform video for social.
Teleprompter
Scroll your script on screen while you record.
Transcript Summarizer
Turn transcripts into descriptions, newsletters and posts.
Audio Modulator
Normalise volume, shift pitch and change tempo.
Format Converter
Fast container conversion in copy mode.
Convert between formats
Guides for the specific conversions people need most. Several of these are container changes rather than re-encodes, which means they finish in seconds and lose no quality.