Artifacts

Plays animated GIF, APNG and WebP files backward.

Rotates or flips animated GIF, APNG, WebP and AVIF files.

Speeds up or slows down animated GIFs.

Splits an animated GIF into individual frames.

Overlays captions or text on animated GIFs.

Converts animated GIFs to MP4 video.

Crops video to a chosen rectangle.

Cuts a section out of a video by start and end time.

Removes the audio track from a video.

Changes the dimensions of a video.

Plays a video clip backward.

Speeds up or slows down a video.

Converts a video file or URL to an animated GIF with trim and size options.

Converts a video clip into an animated WebP.

Creates animated WebP files from a sequence of images.

Converts and compresses video, audio, image and PDF files online.

Online guitar tuner that runs in the browser.

Lookup charts of guitar chord fingering diagrams, scales and keys.

More than a thousand guitar chord charts with theory notes and playing tips.

Series of test sounds to judge headphone frequency response, stereo imaging and distortion.

Type a formula and hear it as music in the browser, an early bytebeat player.

Plays left and right channel sounds to check speaker or headphone placement and channel order.

Free open lyrics database with synced lyrics you can search and download.

Metronome with adjustable BPM, time signatures, accents and subdivisions.