Browser audio conversion, no uploads
Audio Converter
Browser-based audio converter for MP3, WAV, FLAC, and OGG. Set the bitrate up to 320 kbps, the sample rate (48, 44.1, 32, 24, or 16 kHz), channels, and loudness without sending audio to a server.
- Privacy-first: stays local
- Powered by a WASM audio engine
- One-time load, then fast
Private — runs in your browser
WASM audio engine, one-time load
First conversion downloads the engine (about 30 MB)
Built for clean handoffs
- Export MP3 for universal playback or OGG for lean web audio.
- Keep masters as WAV/PCM or FLAC when you want lossless files.
- Choose mono or stereo, adjust bitrate, and pick the right sample rate for your platform.
- Normalize loudness to EBU R128 targets for consistent delivery.
Export podcast episodes, interviews, stems, or reference tracks straight from the browser. The WASM audio core stays cached in this tab, so repeat exports feel instant.
Need video or image exports too? Try the Video Converter or Image Converter.
Practical presets that work
- Podcasts: MP3, 128–160 kbps, mono, 44.1 kHz, normalization on.
- Voiceovers: OGG, 96–128 kbps, mono, 24 kHz for small files.
- Mix reviews: MP3, 192–256 kbps, stereo, 44.1 kHz.
- Stems and masters: FLAC or WAV, stereo, 48 kHz, no normalization.
Preload the engine before exporting a batch to avoid waiting during handoff.
Frequently asked questions
Are my audio files uploaded to a server?
No. The conversion engine runs as WebAssembly inside your browser, so your stems, mixes, and recordings stay local.
Which formats can I export?
MP3 (LAME), WAV (PCM), FLAC (lossless), and OGG (Vorbis). Choose the format that matches your handoff or platform.
Can I control bitrate, sample rate, and channels?
Yes. Pick the target bitrate, sample rate (48k, 44.1k, 32k, 24k, or 16k), and mono or stereo output. You can also normalize loudness to EBU R128.
Does it work offline after the first load?
After the engine is cached (about 30 MB on first use), conversions run offline in this tab without sending audio anywhere.
Related tools
Most utilities process files in your browser. Any tool that uses a server or external service says so on its page.
View all tools- Image Format ConverterConvert images to PNG, JPG, WebP, GIF, BMP, or TIFF directly in your browser (AVIF/HEIC need native codecs).
- Video ConverterBrowser-native video converter for MP4, WEBM, or GIF with CRF, FPS, and resolution controls.
- Image to SVG TracerConvert raster images to vector SVG paths using potrace for B&W or vtracer for color graphics.
- Live Camera ASCIIStream your webcam and transform frames into ASCII art instantly without uploading video.
- PDF EditorMerge files, reorder or drop pages, extract ranges, rotate scans, add text boxes, and cover/remove text directly in your browser.
- AI Cost PlannerTurn public model pricing into a decision-maker shortlist with monthly scenario costs, hidden-fee pressure, and route-risk tradeoffs.
- AI Pricing ExplorerBrowse the pricing database directly with presets, filters, pinned comparisons, source freshness, and inline history.
- Breed MatchmakerRank dog breeds against apartment life, kids, first-time ownership, low shedding, quiet homes, activity, and hot climates.