The lab
Experiments that run entirely in your browser, on your files. Nothing is uploaded anywhere; the codecs come to you.
Stream inspector See what a video file really is: every encoded packet on a timeline, keyframes standing tall, and a preview that seeks the way seeking actually works. Quantizer lab The knob under every codec: scrub a quantizer and watch a frame from your own video degrade, live, with what was thrown away made visible. Video transcode lab Convert video with your machine's hardware encoders, straight from the browser: MP4, WebM, resize, trim, audio extraction. Chroma subsampling lab Split an image into luma and chroma, apply 4:2:0 for real, and watch red text bleed while white text stays crisp. Washed-out colour lab Reproduce the washed-out export on demand: decode a frame with the wrong matrix or range, and measure exactly how far the colour moved. Encoder benchmark Race every codec your browser can encode on identical frames, and see which ones your machine has silicon for. Image codec lab Encode your images to JPEG, WebP, AVIF and JPEG XL with real wasm codec builds, live.
What each lab can do depends on the machine you are reading this on. See what your browser decodes before you blame the file.