Box MP4
Sostituisce i box di metadati supportati con box liberi delle stesse dimensioni.
MP4 · On-device
MP4 video metadata remover
Replace supported MP4 metadata boxes with same-size free boxes while preserving video data offsets.
- 1Scegli un MP4
- 2Pulisci i box
- 3Scarica l'MP4
Elaborazione sul tuo dispositivo: i file originali non vengono caricati sul nostro server.
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MP4 · On-device
Clean boxes while preserving offsets
MP4 files contain structural boxes. This tool replaces supported udta, meta and ilst metadata boxes with same-size free boxes, leaving all media byte offsets unchanged.
It does not re-encode video or audio. Open and play the downloaded copy before publishing.
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Un solo passaggio di elaborazione
Informazioni MP4 elaborate
Offset preservati
Le posizioni dei byte dei dati video non cambiano.
Verifica la riproduzione
Apri di nuovo la copia scaricata prima di usarla in un progetto.
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Procedura consigliata
An MP4 verification workflow
1
Choose an MP4
Use a file below 15 MB.
2
Make a clean copy
Replace supported metadata boxes without shifting other boxes.
3
Play it back
Verify duration, picture and sound in the download.
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Guida approfondita
Why MP4 offsets must stay fixed
MP4 index tables refer to byte positions of audio and video samples. Replacing supported metadata with same-size free boxes leaves those positions unchanged.
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Guida approfondita
Verify the cleaned video
Play the new file from start to finish and check its sound. Metadata in unsupported structures or within frames may remain.
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FAQ
Domande frequenti
Is the video uploaded?
No. It is processed on your device.
Is video re-encoded?
No. Audio and video payload stays at the same byte offsets.
Does it remove all MP4 metadata?
No. Only supported boxes; some UUID or track-specific data can remain.
Should I test playback?
Yes. Play the downloaded copy and verify sound, picture and duration.
Can it remove a video watermark?
No. A watermark in a frame is not an MP4 metadata box.
Pulisci i metadati dell'MP4.
Nessun account. Elaborazione sul tuo dispositivo.
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