---
title: "Free Audio Tools & Calculators: Online Utilities | ShoutingNow"
description: Browser-based audio editing and conversion tools. Every listing links to a free browser-based utility with instructions and FAQs on ShoutingNow, with no…
url: "https://shoutingnow.com/tools/category/audio-editing-tools/"
image: "https://shoutingnow.com/wp-content/uploads/2026/07/shoutingnow-preview-scaled.webp"
---

# Audio Tools

Browser-based audio editing and conversion tools. Open any card to start calculating instantly, then explore related converters and guides for the full workflow.

## Items
- [Online Audio Ducking Tool: Lower Music Under Voice](https://shoutingnow.com/tools/audio-volume-ducker/)
  Load background music and a voice or sidechain track, set duck amount and threshold, preview smooth automatic ducking in your browser, then export MP3, WAV, or other formats without uploading files.
- [Online Audio Reverser: Flip Audio Backward Free Online](https://shoutingnow.com/tools/audio-reverser/)
  Flip an MP3 or WAV clip backward in one click for effects, samples, or creative edits, preview it right on the waveform, then export privately from your browser, nothing to install.
- [Online Audio Silence Adder: Insert Timed Pauses Online](https://shoutingnow.com/tools/audio-silence-adder/)
  Drop a pause exactly where you want it, right at the playhead, for timing, breathing room between takes, or spacing before a join, then preview and export MP3 or WAV without leaving your browser.
- [Online Audio Speed Changer: Slow or Fast Playback](https://shoutingnow.com/tools/audio-speed-changer/)
  Slow down a podcast or lesson, or speed up a voice note, with a live preview of the change, then export MP3 or WAV straight from your browser, no account needed for a timing fix.
- [Online Audio Trimmer: Cut MP3 & WAV Files Free Online](https://shoutingnow.com/tools/audio-trimmer/)
  Cut intros, outros, and dead air from an MP3 or WAV file using millisecond-precise start and end times, preview the cut on the waveform, then export privately, nothing uploads while you edit.
- [Online Audio Volume Changer: Boost or Lower Gain Free](https://shoutingnow.com/tools/audio-volume-changer/)
  Boost a quiet phone recording or tame a harsh peak with live volume preview, then export MP3 or WAV right from your browser, no server upload needed for a simple gain fix.
- [Online Audio Editor: Trim Volume Pitch & EQ Online](https://shoutingnow.com/tools/audio-editor/)
  Trim, adjust volume, change speed and pitch, run an equalizer, reverse a clip, join tracks, and record voice, all in one browser-based editor with optional FFmpeg export and nothing uploaded to our servers.
- [Online Audio Equalizer: Graphic EQ & Presets Free Online](https://shoutingnow.com/tools/audio-equalizer/)
  Reduce mud, brighten a vocal, or shape music tone with EQ presets and graphic bands, watching the live preview as you go, then export MP3 or WAV, all free and on-device.
- [Online Audio Joiner: Merge MP3 Audio Files Online Free](https://shoutingnow.com/tools/audio-joiner/)
  Stack up multiple clips on a visual timeline, reorder or trim each one, preview the whole project, then export a single MP3 or WAV, one seamless track built entirely in your browser.
- [Online Audio Pitch Changer: Shift Key, Keep Tempo Free](https://shoutingnow.com/tools/audio-pitch-changer/)
  Shift the key of a voice or music clip up or down without rushing the tempo, using a smooth slider centered on Natural, preview it in your browser, then export MP3 or WAV, no studio software needed.

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