Audio to Video Converter
Turn an audio file into a video with an animated waveform visualisation, rendered frame by frame in your browser.
VideoOpen tool
Category
Video Tools
Convert, compress, resize, cut, join and speed-change video, or turn it into audio or a GIF — with real FFmpeg encoding in your browser.
Eighteen video tools built on FFmpeg compiled to WebAssembly, plus the browser's native decoders where they suffice. Convert containers, control quality with CRF, resize, trim, merge, change speed or frame rate, and export audio or animated GIFs.
Video Tools list
Video Format Converter
Convert video between MP4, WebM, MKV, MOV and AVI — or pull out an audio track or an animated GIF — without uploading a single byte.
VideoOpen tool
MP4 Converter
Convert almost any video file into MP4 with H.264 video and AAC audio: the combination that plays on phones, televisions and browsers.
VideoOpen tool
MOV to MP4 Converter
Turn QuickTime MOV files — including iPhone recordings and ProRes exports — into MP4 that plays anywhere.
VideoOpen tool
MKV to MP4 Converter
Convert Matroska (MKV) files to MP4 for devices that do not support the container, with a clear account of what happens to extra streams.
VideoOpen tool
WebM to MP4 Converter
Convert WebM files with VP8, VP9 or AV1 video into MP4 that older devices, editors and televisions can actually play.
VideoOpen tool
Video Compressor
Shrink a video file by real H.264 encoding, with the actual size saving measured and reported before you download.
VideoOpen tool
Video Resizer
Change a video's pixel dimensions by preset, by width, or by an exact width and height you specify.
VideoOpen tool
Video Cutter
Cut a clip out of a video by setting a start and end time, with a fast stream-copy mode and a frame-accurate re-encode mode.
VideoOpen tool
Video Trimmer
Trim the start and the end of a video so it begins and finishes exactly where the content does.
VideoOpen tool
Video Joiner
Merge several video clips into one continuous file, in the order you list them, with a fast or a safe merge mode.
VideoOpen tool
Video to GIF Converter
Turn a video clip into an animated GIF with a genuine LZW encoder and a proper 256-colour palette.
VideoOpen tool
GIF to Video Converter
Convert an animated GIF into a real video file — often a fraction of the size — using a GIF decoder written for this tool.
VideoOpen tool
Video Resolution Converter
Convert video between standard resolutions — 4K, 1080p, 720p, 480p, 360p — with the aspect ratio preserved.
VideoOpen tool
Video FPS Converter
Change a video's frame rate to match a delivery specification, or lower it to reduce the file size.
VideoOpen tool
Video Speed Changer
Speed a video up or slow it down from 0.25× to 4×, with correct audio handling either way.
VideoOpen tool
Video Subtitle Extractor
Inspect a video file for subtitle tracks and get a straight answer about what a browser can and cannot extract.
VideoOpen tool
Popular in other categories
MP3 Converter
Turn WAV, FLAC, M4A, OGG, Opus or the audio track of a video into a clean MP3 at any bitrate from 64 to 320 kbps.
AudioOpen tool
MP4 Converter
Convert almost any video file into MP4 with H.264 video and AAC audio: the combination that plays on phones,…
VideoOpen tool
Image Compressor
Reduce an image's file size with a quality slider and optional downscaling, and see the real saving before you…
ImageOpen tool
Image Resizer
Resize any JPG, PNG or WebP image by width, exact dimensions, percentage or a maximum box, with the aspect ratio kept…
ImageOpen tool