// Free Tools · The Toolkit

Free Tools

I built these free audio tools because most of the stuff producers need to look up (compressor settings, EQ ranges, loudness specs, polar patterns) is scattered across blog posts and YouTube comments. These tools put it all in one place with no sign-up required. Pick a tool, get the answer, and get back to work.

● Free
Mod 01Mentor AI
Why does my snare lose its crack when I compress it?
DAttack-time issue. If it's too fast you're clamping the transient before it punches through…
AI Mixing Mentor
AI-powered mixing advice trained on 20 years of real-world engineering. Like having a mix engineer in your pocket.
› Launch Module
● Free
Mod 02EQ Hz
EQ Frequency Chart
Find Problem Frequencies
EQ cheat sheet and interactive frequency spectrum: 24 instruments, masking detection and mix diagnostics.
› Open
 ● Free
Mod 03Comp Viz
Compression Visualiser
See What Your Compressor Does
Watch attack and release in real-time. Finally see why a slow attack creates punch.
› Open
Mod 04Comp Calc
Source Vocal ▾
Atk20ms
RelAuto
Ratio3:1
Find Your Starting Point
Select what you're compressing and what you want to achieve. Settings based on real-world practice.
› Open
Mod 05LUFS dB
Spotify−14
Apple Music−16
YouTube−14
Check the Specs Before You Master
LUFS, true-peak and normalisation specs for every platform. Music, film, podcasts, broadcast.
› Open
Mod 06Mic Polar
Polar Pattern
See How Your Mic Picks Up Sound
9 polar patterns. Drag a source around the mic and watch the pickup change live.
› Open
Mod 07Fix Dx
What's going wrong?
Lost the punchFlat / squashedPumpyHarshCan't hear it
Diagnose & Fix Common Problems
Pick a symptom, get a specific fix. 72 endpoints across 10 symptom paths.
› Open
// Made by Dan · Products The Compression Code. All products →

Get the Compression Cheat Sheet

Starting points for every common source and compression goal, in a printable PDF. Keep it next to your DAW so you're not guessing mid-session.