Converts AIFF files to MP3 format — Apple professional audio to universal music playback and sharing across all devices and platforms. All conversion happens locally in your browser with no file size limits.
Runs on FFmpeg
Content reviewed October 2026 · About Toolzum
Convert MP3 audio files to AIFF format directly in your browser. Audio never leaves your device — conversion and editing run locally in your browser with FFmpeg WASM. Private and free.
Convert WMA audio files to MP3 format directly in your browser. Audio never leaves your device — conversion and editing run locally in your browser with FFmpeg WASM. Private and free.
Convert OPUS audio files to MP3 format directly in your browser. Audio never leaves your device — conversion and editing run locally in your browser with FFmpeg WASM. Private and free. from VoIP and streaming sources.
Convert MP4/WebM to GIF animations. Videos up to 250MB. Videos never leave your device — compression and conversion run locally in your browser with FFmpeg WASM.
Inserts page number labels at user-chosen positions (bottom-center, top-right, etc.) with configurable font, size, and starting offset. Documents stay on your device — editing and conversion run locally in your browser.
AIFF (Audio Interchange File Format) uses uncompressed lossless encoding and is best for Apple professional audio — Logic Pro, GarageBand, and macOS music production workflows. MP3 (MPEG-1 Audio Layer 3) uses lossy compressed encoding and excels at universal music playback and sharing across all devices and platforms. 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.
Shrinking studio masters to portable size for everyday listening.
Uncompressed to lossy — 256–320 kbps preserves nearly everything audible.
Always — masters stay AIFF, conversions are disposable copies.
No — conversion runs locally in your browser; unlimited saves on local tools.
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.