Converts M4A files to WAV format — Apple ecosystem to professional audio editing, mastering, and archival in DAWs and production software. All conversion happens locally in your browser with no file size limits.
Runs on FFmpeg
Content reviewed October 2026 · About Toolzum
Compress WAV masters to FLAC at ~60% size with zero loss — the archival standard. Archive studio recordings properly — local FFmpeg work, unlimited saves.
Convert M4A to AIFF for Logic Pro and GarageBand native ingest. Move Apple audio into pro workflows — local FFmpeg work, unlimited saves.
Convert WMA to uncompressed AIFF for Apple pro audio workflows. Bring legacy libraries into Logic — local FFmpeg work, unlimited saves.
Upgrade one GIF to APNG via FFmpeg apng codec at locked 10fps and source dimensions (Lanczos) — 24-bit color plus 8-bit alpha, no size/quality settings. Result panel shows GIF vs APNG KB with ±% change; saves as <name>.png. Modernize sticker packs — local FFmpeg work, unlimited saves.
Convert WebM videos to Apple-friendly MOV for Final Cut and QuickTime workflows. Bring web clips into Mac editing — local FFmpeg work, unlimited saves.
M4A (MPEG-4 Audio) uses lossy or lossless (AAC/ALAC) encoding and is best for Apple ecosystem — iTunes, iPhones, iPads, and macOS music libraries. WAV (Waveform Audio File Format) uses uncompressed lossless encoding and excels at professional audio editing, mastering, and archival in DAWs and production software. Converting between them lets you take advantage of each format's strengths — for example, using a compressed format for sharing and a lossless format for editing. All conversion happens locally in your browser with no file size limits.
Hugely: ALAC converts bit-perfectly (lossless to uncompressed); AAC loses a generation (transparent at high bitrates, but lossy). Check the source codec first.
Pro Tools, Logic, and Audition ingest WAV natively with sample-accurate editing. M4A containers complicate timelines — convert once at project start.
Roughly 10 MB per stereo minute at 44.1 kHz/16-bit. A 60-minute session needs ~600 MB disk — plan before batching.
No — conversion runs locally in your browser with FFmpeg. Saves never touch a meter — downloads on local tools are unlimited.
Text to Speech (TTS)
Generate natural-sounding speech from text using your browser's built-in voices. Adjust speed and pitch — download your text as .txt.
Audio Cutter
Trim and cut audio files online — MP3, WAV, M4A, FLAC, and OGG. Set start and end times with sliders, then download the trimmed MP3 clip.
MP3 to WAV
Converts MP3 files to WAV format — universal music playback and sharing across all devices and platforms to professional audio editing, mastering, and archival in DAWs and production software. All conversion happens locally in your browser; files up to 100 MB each.
Speech to Text
Dictate live microphone speech to text in multiple languages through your browser's speech service. Live captions for meetings and notes — free to start, no Toolzum account needed.
MP3 Compressor
Shrink MP3 files by lowering bitrate with quality presets — fit podcasts into feed limits. Cut a 50 MB episode to 15 MB cleanly — local FFmpeg work, unlimited saves.
Apple Music Preview Extractor
Extracts publicly available 30-second audio preview clips from Apple Music by resolving the store URL. Free to start with no signup.