MEDIA SIGNAL BAY

Every tool, labeled by where your bytes go.

Choose local processing whenever possible, signed cloud uploads for large files, and AI jobs for transcription, subtitles, synthesis and understanding.

Tier 1 · Browser-local tools

Files never leave this device

MP4 to MP3 Converter

Extract MP3 audio from MP4 video locally using FFmpeg.wasm. No server upload.

mp4 · mov · m4v · webm

Tier 2 · Cloud processing

Pro

Cloud Video Compressor

Large-file video compression with signed R2 upload, D1 job state and automatic deletion.

mp4 · mov · webm · mkv

Tier 3 · AI credits

AI credits required

AI Subtitle Generator

Generate SRT and VTT subtitles from video or audio, with timestamps and editable text.

mp4 · mov · webm · mp3 · wav · m4a

AI credits required

AI Voiceover / Text to Speech

Create narration from a script with consent gate, voice options and MP3/WAV export.

txt

AI credits required

AI Subtitle Translator

Translate SRT/VTT subtitles or transcribed media into any of 12 languages while preserving timestamps.

srt · vtt · txt · mp3 · wav · mp4