Convert flv to aac

Converted on your device. Files never leave this tab. Output tops out around 2 GB.

Drop flv files here or click to choose

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The converter runs inside this page. Cut your network after it loads and it still works.

No account, no daily limit

No sign-up, no daily limit, no watermark, no queue behind other people's files. Batch as many FLV files as you like.

Real AAC output

Encoded by ffmpeg, the same library the command-line tools use — not a renamed extension.

Other flv conversions mp4 webm mov avi mkv wmv mp3 wav ogg flac m4a opus

Convert to aac from mp3 wav ogg flac m4a opus wma mp4 webm mov avi mkv

About FLV

Flash Video

Adobe's container for Flash Player, which carried most web video in the late 2000s, usually with Sorenson Spark, VP6 or H.264 video. Flash Player was discontinued at the end of 2020. Convert FLV to MP4 to play saved Flash-era video now that Flash is gone.

About AAC

Advanced Audio Coding

The lossy codec standardized in MPEG-2 and MPEG-4 as a successor to MP3, generally sounding better at the same bitrate. A .aac file is a bare ADTS stream without the MPEG-4 container an M4A has. Use it for players and streaming tools that want a raw AAC stream; for a music library, M4A holds the same audio with better tagging.