Tools

Free, browser-based audio tools. Your files never leave your computer — everything runs locally in your browser.

100% Private No Upload Works Offline Free Forever
How Loopback Audio works with these tools: Record to TF card → plug TF card into your computer → drag files into the browser tool → get MP3 / WAV / FLAC → put files on any device. Round trip takes seconds.

Available Tools

Audio Converter & Trimmer

Convert AAC files to MP3, WAV, OGG, or FLAC. Trim the head and tail of recordings. All processing happens in your browser — files never leave your computer.

Formats: AAC ↔ MP3 ↔ WAV ↔ OGG ↔ FLAC
Privacy: 100% local, no upload, no tracking

Open the converter →

Coming Soon

Audio Merger

Combine multiple AAC / MP3 files into one. Useful for stitching together playlist recordings.

(coming Q4 2026)

Volume Normalizer

Match playback volume across tracks. Uses EBU R128 / ReplayGain-style analysis. Perfect for car stereos that don't auto-level.

(coming Q4 2026)

ID3 Tag Editor

Edit song title, artist, album, year, genre. Batch mode for cleaning up hundreds of recordings at once.

(coming Q1 2027)

Batch Converter

Convert entire TF card worth of recordings in one go. Drag a folder in, get a folder out.

(coming Q1 2027)

Silence Remover

Auto-detect and trim silence / ads from recordings. Smart silence detection (configurable threshold).

(coming Q2 2027)

Spectrum Visualizer

See the frequency spectrum of any audio file. Useful for verifying recording quality and format.

(considering)

Privacy Guarantee

Your audio never leaves your device

Every tool on this page runs entirely in your browser using JavaScript. We never see, upload, store, or process your files. Open your browser's DevTools → Network tab while using these tools — you'll see zero requests after the page loads.

We don't use server-side conversion, analytics on file contents, or third-party SDKs that touch your data. We do count page views (anonymous) so we know which tools are popular.

Suggest a Tool

Have an idea for a tool that should be on this page? Email hello@loopbackaudio.com or use the contact form. We ship new tools every 6-8 weeks based on user requests.

Last updated: 2026-10-18