Avido
Runs on your device. Nothing is uploaded.
Images · PDF · Video

Smaller files. Same picture.

Compress images, PDFs and videos right in your browser. Smart mode measures every result against the original and keeps the smallest one you can't tell apart.

Drop images, PDFs or videos here
Drop hundreds of files or whole folders at once, or paste from the clipboard.
PNGJPGGIFWebPAVIFBMPPDFMP4MOVWebM

Files

    No images yet.

    What runs under the hood

    JPEG MozJPEG

    Trellis quantisation and progressive scans. Usually 30–70% smaller than camera or Photoshop output.

    PNG pngquant + OxiPNG

    A dithered palette, then a tighter compressed stream. Switches to lossless when a palette would show.

    GIF Gifsicle

    -O3 with lossy LZW. Every frame and the animation timing are kept.

    PDF MozJPEG + object streams

    Photos inside the PDF are resampled and re-encoded, loose streams are deflated, and objects are packed. Text and vector graphics stay sharp.

    Video WebCodecs · H.264

    Uses your device's hardware video encoder, so it's fast. Output is MP4, which plays everywhere. Bitrate never exceeds 75% of the original.

    Batch folders · ZIP

    Drop whole folders. Files run in parallel on background threads, and the ZIP keeps your folder structure.

    WebP · AVIF libwebp · libaom

    Pick "Smallest of all formats" and each image keeps whichever format wins.