Audio cutter, free and private

Open the file, drag the two handles on the waveform (or type the start and end time), press Play to hear the selection and save. With several files, “Use this cut for all files” applies the same start and end everywhere.

WAV and FLAC are lossless. MP3, M4A and OGG are compressed: 192 kbit/s sounds like the original for almost all music, 128 kbit/s is fine for voice. Converting a compressed file to another compressed format cannot add back detail, so pick a bitrate at least as high as the original. “Same as the file” copies the audio without re-encoding when the format stays the same; a cut MP3 is encoded again at its own bitrate.

Yes. Choose 1 to 10 seconds for the fade in and the fade out; the waveform shows them right away. A fade means the audio has to be encoded again, so it is not available together with a lossless copy.

It reads MP3, M4A, AAC, WAV, FLAC, OGG and Opus, and the sound track of MP4, MOV, MKV and WebM videos. It writes MP3, M4A (AAC), WAV, OGG (Opus) and, in browsers that can encode it, FLAC.

Yes. Files are read in pieces and the waveform is built while decoding, so hour-long recordings and big WAV files work on a phone too. Long WAV outputs are written straight to the browser's private storage instead of memory.

Yes. Drop a whole folder or choose as many files as you like. They are converted one or two at a time, with a progress bar and time left for each, and you can pause, stop, retry, and save everything as a ZIP or straight into a folder.

No. Your videos are read, converted and saved by your own browser, using your device’s video hardware where it has it. Nothing is sent to a server, so even private or very large videos stay on your phone or computer.

Yes, with no account, no watermark and no limit on the number of files. FotoJock is made by Foto Jocković, a photo shop in Belgrade.