14 conversions · 100% local · zero uploads
Free file conversions that run in your browser
Every conversion below runs entirely on your device with WebAssembly. No upload, no watermark, no sign-up - and each page is a working converter, not just instructions.
Video conversions
Change video containers and codecs for compatibility.
MOV to MP4
Convert MOV (QuickTime) videos to MP4 directly in your browser. Free, no upload, no watermark
MKV to MP4
Convert MKV (Matroska) videos to MP4 in your browser. Free and private
AVI to MP4
Convert old AVI videos to modern MP4 in your browser. Free, offline, private
WebM to MP4
Convert WebM videos to MP4 locally in your browser. Free and private
MP4 to WebM
Convert MP4 videos to WebM (VP9/Opus) in your browser for smaller, web-optimized files. Free, private, no upload.
MP4 to MOV
Convert MP4 videos to QuickTime MOV in your browser. Free and private
Audio conversions
Switch audio formats for any device or workflow.
M4A to MP3
Convert M4A (AAC) audio to MP3 in your browser. Free, private, no upload
WAV to MP3
Convert WAV audio to compact MP3 files in your browser. Free and private with no upload
OGG to MP3
Convert OGG Vorbis audio to MP3 in your browser. Free, private, offline
MP3 to WAV
Convert MP3 audio to uncompressed WAV in your browser for editing, DJ software, or burning CDs. Free, private, no upload.
FLAC to MP3
Convert lossless FLAC audio to MP3 in your browser. Free, private, no upload
Audio extraction
Pull the audio track out of a video file.