Audio Trimmer / Cutter
Start–end slice with waveform + WAV export.
Cut, convert and inspect audio in your browser
Trim audio, adjust speed and volume, export supported formats, inspect waveforms and remove silence. Browser codec support and device memory vary.
FreeFastPrivateNo signupRuns in your browser
Edit
Fade In / Fade Out
Linear/exponential ramps, audition + export.
Volume Normalizer
Peak/RMS normalize to target dB.
Silence Trimmer
Auto-trim leading/trailing silence (threshold) + WAV export.
Mono ⇄ Stereo
Downmix/duplicate with level care.
Join Audios
Concat 2+ files, channels matched + WAV.
Tape Speed
Tape-style speed ×0.25–×4 (tempo+pitch together) + WAV export.
Convert
WAV Converter
Decode any → 16-bit PCM WAV export.
Opus/WebM Export
Real on-device encode (Opus/WebM/M4A by browser) + download. Encoder loads on first use.
MP3 Export
Real CBR MP3 via lamejs (128/192/320k) + download. Encoder loads on first use.
Analyze
Waveform Viewer
Peak-per-bucket waveform + dB reference lines.
Audio Metadata
Name/size/type/duration/channels/rate.
Noise Report
Clipping/DC-offset statistics.
Generate
Test Tone Generator
Sine/square/sweep WAV synthesis.
Advertisement
In-content · after first value section
In-content · after first value section
Why AudioForge?
Audio processing runs in the browser in the implemented client flows. Supported formats and output quality depend on browser APIs and the source file.
Processed locally in your device. Your file is not uploaded.
FAQ
Is it free?
Yes — every tool is free with no signup and no credits.
Is my data uploaded?
Selected files are processed in your browser and are not sent to a Tolari processing endpoint. Configured third-party scripts or resources may still load.
Does it work offline?
The app shell and deterministic tools can work after they are cached. Some file engines need an initial connection, and browser storage can be cleared.
Does it work on mobile?
Yes — touch-friendly, one-tap download, adaptive workers for weak devices.
How do you make money?
Ads may appear only after configuration and the required consent signal. No paywall or fake download buttons.
Guides
WAV vs MP3 vs OGG in one page · Normalize without clipping · Fades that don't click · MP3 without uploading anything · Join podcast takes — practical, original explainers with examples.