Converts M4A files to AIFF format — Apple ecosystem to Apple professional audio. All conversion happens locally in your browser with no file size limits.
Runs on FFmpeg
Content reviewed October 2026 · About Toolzum
Convert WMA to uncompressed AIFF for Apple pro audio workflows. Bring legacy libraries into Logic — local FFmpeg work, unlimited saves.
Compress AIFF masters to FLAC at half size with zero loss — universal archival. Move Logic bounces into long-term storage — local FFmpeg work, unlimited saves.
Convert M4A audio to uncompressed WAV for DAWs and archival — bit-perfect from ALAC sources. Prep Apple recordings for Pro Tools — 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.
Burn text watermarks into a video with 5 position presets (bottom-right default, fixed 24px white on semi-transparent black box). Brand one clip at a time — 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. AIFF (Audio Interchange File Format) uses uncompressed lossless encoding and excels at Apple professional audio — Logic Pro, GarageBand, and macOS music production workflows. 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.
Logic and GarageBand ingest AIFF natively with full metadata and region support. M4A works but AIFF edits smoother on Apple timelines.
None from ALAC sources (bit-perfect); one lossy generation from AAC (transparent at high bitrates). Check the source codec first.
Uncompressed like WAV — ~10 MB per stereo minute. Large but edit-friendly; archive FLAC separately.
No — conversion runs locally in your browser with FFmpeg. Only saves touch the network — downloads 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.