LIHA Tools

FLV to MP3 audio Converter

Convert FLV video to MP3 audio in a browser-only batch. Files, streams, metadata, and results are never uploaded.

Files stay in this browser tab and are never uploaded. Up to 250.0 MiB per file and 10 files.

Common output settings

Advanced video, audio, and stream settings

The private batch workspace is ready. Video encoding becomes available after the verified browser engine is loaded.

How FLV to MP3 audio conversion works

FLV probe and decode → stream-aware conversion → MP3 audio verify

Reading FLV

FLV input is parsed for supported Flash video codecs, audio tracks, timestamps, and bounded script metadata.

Creating MP3 audio

MP3 output extracts one selected audio stream using the approved audio conversion contract.