Free Online Audio Tools
FileCrank's Audio Tools are the professional online alternative to Audacity and GarageBand — no installation, no signup, no limits. Convert between MP3, WAV, FLAC, AAC, OGG, M4A, AIFF, OPUS, and more. Edit with precision: trim to the exact millisecond, merge tracks with custom crossfades, boost quiet recordings, remove background noise, and apply studio-quality reverb or EQ. Extract audio from any video, create iPhone and Android ringtones, detect BPM, and generate waveform images for podcast thumbnails. Most tools run entirely in your browser — your files never leave your device.
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All Audio Tools (22)
Audio Converter
Convert audio between MP3, WAV, FLAC, AAC, OGG, M4A, AIFF, OPUS, WMA, AMR
Video to Audio
Extract audio track from any video file as MP3, WAV, or AAC
Audio to Ringtone
Trim any audio to an iPhone ringtone (M4R, max 40 seconds)
Audio Trimmer
Cut audio to exact start and end times with waveform scrubber
Audio Merger
Join multiple audio files into one with optional crossfade
Audio Splitter
Split audio into multiple segments by silence, equal parts, or markers
Audio Compressor
Reduce audio file size with bitrate and quality controls
Audio Speed Changer
Change playback speed (0.25×–4×) with optional pitch preservation
Audio Pitch Changer
Shift pitch up or down in semitones without affecting speed
Audio Volume Booster
Normalize, boost, or reduce volume with peak limiting
Audio Noise Remover
Remove background noise and hiss from recordings using AI
Audio Reverb
Add room, hall, plate, or spring reverb with wet/dry mix control
Audio Equalizer
Apply 10-band EQ with real-time preview and export
Audio Fade
Add fade-in and fade-out with configurable duration and curve shape
Audio Reverse
Reverse an audio file — play it backwards
Stereo to Mono
Mix stereo audio channels to mono — essential for podcasting
Audio Channel Splitter
Split stereo audio into separate left and right channel files
Audio Waveform Generator
Generate a visual waveform image (PNG/SVG) from any audio file
Audio Mixer
Multi-track mixer: up to 4 tracks with faders, EQ, reverb, and export
Audio Recorder
Record from microphone in the browser — capture, preview, and export
BPM Detector
Detect the beats per minute (BPM) of any audio file
Audio Metadata Editor
View and edit ID3 tags: title, artist, album, year, genre, album art
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Got Questions?
Frequently Asked Questions
- Are all audio tools completely free?
- Yes. Every audio tool on FileCrank is free with no subscription, no watermark, and no signup required. Client-side tools process files in your browser — no upload at all.
- Which audio formats does FileCrank support?
- FileCrank supports MP3, WAV, OGG, FLAC, AAC, M4A, AIFF, OPUS, WMA, and AMR for format conversion. Editing and processing tools accept MP3, WAV, OGG, and FLAC. Video-to-audio extraction supports MP4, MOV, MKV, AVI, and WebM as input.
- Is my audio kept private?
- Most tools (trimmer, merger, EQ, reverb, pitch changer, volume booster, and more) run entirely in your browser — your audio never leaves your device. For format conversion tools, files are uploaded over HTTPS, processed immediately, and deleted within one hour. The audio recorder never sends anything to a server.
- What is the maximum audio file size?
- Client-side tools support audio files up to 200 MB (limited by your device memory). Server-side conversion tools support files up to 200 MB for audio inputs and up to 500 MB when extracting audio from video.
- How do I convert MP3 to WAV without losing quality?
- Use the Audio Converter tool and select WAV as the output format. Note that MP3 is a lossy format, so converting to WAV does not recover the quality that was lost when the MP3 was originally encoded. However, WAV is lossless from this point forward — no further quality is lost in subsequent edits. For archival, converting FLAC to WAV is truly lossless.
- How do I remove background noise from an audio recording?
- Use the Audio Noise Remover tool. It analyses the audio spectrum and applies a noise gate and spectral subtraction to reduce steady background noise — fan hum, HVAC noise, mic hiss. For best results, the recording should have at least one second of pure background noise at the start or end that the algorithm can use as a noise profile.
- How do I create a ringtone from a song?
- Use the Audio to Ringtone tool. Upload your MP3 or WAV file, select the clip start and end time (iPhone ringtones must be under 30 seconds; Android supports longer clips), choose M4R for iPhone or MP3 for Android, and download. The tool trims and encodes the file to the correct format automatically.
- What is BPM detection used for?
- BPM (Beats Per Minute) is the tempo of an audio track. DJs use BPM to match tracks for smooth transitions. Video editors use it to sync cuts to the beat. Music producers use it to set the correct project tempo before sampling. The FileCrank BPM Detector analyses the rhythmic content of your audio file and displays the detected BPM in seconds.
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