Audio & Video tools

Record microphone audio in the browser and download it as WebM or M4A.

Cut a start and end point from an audio file and export a clean WAV.

Render an audio file as a waveform image for video, podcasts and thumbnails.

Slow down or speed up an audio file and export a WAV.

Raise or lower a recording to a consistent peak level and export WAV.

Play an audio file backwards and download the reversed WAV.

Generate sine, square, sawtooth or triangle test tones as WAV files.

Encode WAV or other audio to MP3 at 128–320 kbps in the browser.

Capture a still frame from any video at full resolution as a PNG.

Turn a short video clip into an animated GIF with adjustable size and frame rate.

Trim a video to a selected range and export WebM, with optional audio removal.

Strip the audio track from a video and download a silent WebM.

Record your screen or a window locally and download the WebM file.

Take webcam photos and record video clips locally in the browser.

Compress multiple files into a single ZIP archive locally.

Inspect a ZIP archive and download individual files without installing anything.

Batch-rename file extensions and stems, then download the renamed copies.

Inspect the raw bytes of any file as hexadecimal and ASCII.

Compare original and compressed file sizes and see the space saved.

Convert between SRT and WebVTT and shift subtitle timing.

Record your screen with a webcam overlay and mixed audio for demos and walkthroughs.

Edit videos in the browser: multiple clips, trimming, rotation, flips, canvas size, text overlays and background music.

Combine several videos into one file in your browser, with matching size and frame rate.

Crop a video to a rectangle or a social aspect ratio in your browser.

Rotate a video by 90, 180 or 270 degrees and flip it horizontally or vertically.

Change a video's resolution while keeping its aspect ratio, locally in the browser.

Repeat a video a chosen number of times and export a single looping clip.

Speed up or slow down a video from 25% to 400%, keeping the audio in sync.

Raise or lower a video's audio track from 0% to 300% without re-encoding the picture.

Add music or a voice track to a video, replacing or mixing with the original sound.

Overlay a logo, watermark or picture on a video with position, size and timing controls.

Add captions, titles or callouts to a video with colour, size, position and timing.

Blur or interpolate a region of a video to cover a logo or watermark, locally in the browser.

Apply basic stabilisation to handheld footage with the browser-based ffmpeg engine.