Converts AIFF files to AAC format — Apple professional audio to modern streaming services, YouTube, and devices where AAC is the native codec. All conversion happens locally in your browser with no file size limits.
Runs on FFmpeg
Content reviewed October 2026 · About Toolzum
Convert AAC to ultra-efficient Opus for voice streaming, bots, and VoIP. Shrink spoken audio to tiny bitrates — local FFmpeg work, unlimited saves.
Convert MP3 to AAC for better quality per bit on Apple devices and streaming. Modernize libraries for smaller sizes — local FFmpeg work, unlimited saves.
Convert OGG Vorbis to AAC for Apple and streaming compatibility. Move open audio into mainstream players — local FFmpeg work, unlimited saves.
Smooth shaky handheld footage with motion-compensated stabilization. Salvage walking tour videos without gimbals — local FFmpeg work, unlimited saves.
Shrink JPG, PNG, and WebP photos with an Image Quality slider (10–100%, default 80%) plus a Resolution Scale slider, shown in Before/After panels with exact KB and -% savings. Single-image uploads up to 50MB — local library work, unlimited saves.
AIFF (Audio Interchange File Format) uses uncompressed lossless encoding and is best for Apple professional audio — Logic Pro, GarageBand, and macOS music production workflows. AAC (Advanced Audio Coding) uses lossy compressed encoding and excels at modern streaming services, YouTube, and devices where AAC is the native codec. 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.
128 kbps AAC — full-bandwidth enough for approvals on any device. Masters stay AIFF/FLAC; previews travel light.
AAC sounds better per bit and Apple prefers it; MP3 only where legacy demands. Default AAC for 2026 sharing.
Normalize previews to −14 LUFS so clients hear intended balance on phones. Masters keep headroom separately.
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.