Audio & Video Tools
Free audio and video tools that run in your browser — trim, convert, compress, extract audio, make GIFs and generate subtitles. Files never leave your device.
Auto Subtitle GeneratorGenerate subtitles from audio or video with AI — accurate timed captions in 9+ languages, edit each line, then download as SRT or VTT. Free, no signup.Audio Noise ReducerReduce hum, rumble and hiss from audio in your browser with high-pass/low-pass filters and a noise gate. Free WAV output, private, no signup.Remove Vocals from SongMake a karaoke instrumental by removing vocals with phase cancellation, right in your browser. Stereo tracks needed. Free WAV downloads, no signup.M4A to MP3 ConverterConvert M4A/AAC audio to MP3 in your browser at 128–320 kbps. Free, private, no signup — nothing is uploaded to a server.MP3 to WAV ConverterConvert MP3 to uncompressed 16-bit WAV in your browser, with optional sample-rate choice. Free, private, no signup or upload.WAV to MP3 ConverterCompress bulky WAV files to MP3 at 128–320 kbps right in your browser. Free, private, no signup — nothing is uploaded.Audio Volume BoosterMake audio louder or quieter (0.5×–4×) with optional loudness normalization, in your browser. Free, private, no signup or upload.Audio JoinerMerge multiple audio files into one, in any order, right in your browser. Reorder the list, pick a format, download. Free, private, no upload.GIF CompressorShrink animated GIFs in your browser by tuning frame rate, size and colors with smart palette optimization. Free, private, no upload.GIF to MP4 ConverterConvert animated GIFs to compact H.264 MP4 video in your browser — far smaller, smoother playback. Free, private, no upload.Mute VideoRemove the audio track from any video in your browser without re-encoding — no quality loss, same format. Free, private, no upload.Webcam RecorderRecord your webcam and microphone in the browser, preview instantly, and download as WebM or convert to MP4. Free, private, no upload.Voice RecorderRecord your voice in the browser with a live level meter and timer, then download as WebM or convert to MP3. Free, private, no upload.Subtitle EditorEdit subtitle text and timings, shift or convert between SRT and VTT — all in your browser. Free, private, no signup or upload.Audio ConverterConvert audio between MP3, WAV, M4A, OGG and FLAC in your browser, with a bitrate choice. Free, private, no signup or upload.Audio CutterTrim an audio file to a start and end time in your browser and keep the same format. Free, private, no signup or upload.Audio Pitch ChangerShift audio pitch up or down by semitones while keeping the same length, in your browser. Free, private, no signup or upload.Audio Speed ChangerSpeed up or slow down audio (0.5×–2×) in your browser, keeping the pitch natural. Free, private, no signup or upload.Extract Audio from VideoPull the audio track out of any video and save it as MP3, M4A or WAV, in your browser. Free, private, no signup or upload.GIF MakerTurn a short video into an animated GIF in your browser with frame-rate and width controls. Free, private, no signup or upload.Loop VideoRepeat a video a chosen number of times into one continuous file, in your browser. Free, private, no signup or upload.Video RotatorRotate a video 90°, 180° or flip it horizontally or vertically, in your browser. Free, private, no signup or upload.Video TrimmerCut a video to a start and end time in your browser and keep the good part. Free, private, no signup or upload.Video to GIF ConverterConvert a chosen segment of a video into a crisp animated GIF, with trim, size and frame-rate control. Free, private, no upload.AVI to MP4 ConverterConvert old AVI videos to modern H.264 MP4 in your browser, with a quality choice. Free, private, no signup or upload.Add Subtitles to VideoEmbed an SRT subtitle track into your MP4 as a selectable caption track, in your browser. Free, private, no signup or upload.MKV to MP4 ConverterConvert MKV videos to H.264 MP4 for phones, browsers and editors, in your browser. Free, private, no signup or upload.MOV to MP4 ConverterConvert Apple QuickTime MOV videos to widely-compatible H.264 MP4, in your browser. Free, private, no signup or upload.WebM to MP4 ConverterConvert WebM (VP8/VP9) videos to H.264 MP4 for editors and older devices, in your browser. Free, private, no upload.MP4 to WebM ConverterConvert MP4 videos to efficient WebM (VP9 + Opus) for the web, in your browser. Free, private, no signup or upload.Video CropperCrop a video to a custom region — width, height and position — right in your browser. Free, private, no signup or upload.Video ResizerResize a video to new dimensions for any platform or device, in your browser. Free, private, no signup or upload.Video CompressorShrink video file size with a simple quality slider, right in your browser. Free, private, no signup or upload.Video ConverterConvert video between MP4, WebM, MKV and MOV with a quality choice, in your browser. Free, private, no signup or upload.Add Audio to VideoReplace or mix a soundtrack onto a video in your browser and download the result. Free, private, no signup or upload.Reverse VideoPlay a video backwards, with optional reversed audio, right in your browser. Free, private, no signup or upload.Video Speed ChangerSpeed up or slow down a video (0.5×–2×), with matching audio, in your browser. Free, private, no signup or upload.GIF ResizerResize an animated GIF to a new width while keeping the animation smooth, in your browser. Free, private, no upload.