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FFMIT logo

FMIT

Flathub·Audio editing & DAW

FMIT is a free, open-source musical instrument tuner that estimates the fundamental frequency of an audio signal in real-time and displays it against the closest musical note. It offers advanced features including frequency and volume traces, multiple tuning scales (chromatic, historical temperaments, diatonic), microtonal support via Scala files, waveform and harmonics visualization, DFT analysis, and customizable panels. Users can select from ALSA or JACK audio systems and switch between simple analog tuner and advanced analysis views. It is designed for musicians needing precise instrument

Free
Linux
FFMIT logo
Visit Flathub↗

Overview

6 features

In the Audio editing & DAW space, FMIT takes a focused approach. Accurately tuning musical instruments by visualizing and comparing their fundamental frequency to musical notes and scales in real time. It is built as an open-source project for musicians and instrument players. The product is available for free. The product ships for Linux.

Behind FMIT is Gilles Degottex. Key capabilities include real-time frequency estimation, multiple tuning scales, and microtonal tuning support.

  • ✓Real-time frequency estimation
  • ✓Multiple tuning scales
  • ✓Microtonal tuning support
  • ✓Waveform and harmonics view
  • ✓DFT analysis
  • ✓ALSA and JACK support

Tags

musical-instrument-tunerfrequency-analyzerreal-time-audiomicrotonal-tuningscala-support

Built with & integrations

Runs on
Linux

Trust & compliance

LicenseProprietary
Verified signals
✓ HTTPS✓ Free tier

Recent events

Latest indexed changes and source events

  1. IndexedJul 20, 8:18 PM

    FMIT verified by the PulseGate indexer

    Source: PulseGate indexerOpen ↗

Frequently asked questions about FMIT

What does FMIT do?
Accurately tuning musical instruments by visualizing and comparing their fundamental frequency to musical notes and scales in real time. It is catalogued under Audio editing & DAW on PulseGate.
Who is FMIT for?
FMIT is an open-source project built for musicians and instrument players.
Is FMIT free?
Yes — FMIT is free to use.
What platforms does FMIT run on?
FMIT runs on Linux.
Is FMIT still maintained?
PulseGate's liveness checks currently classify FMIT as active.
What are alternatives to FMIT?
Similar tools tracked by PulseGate include Avantis4You, AudioVERT, and IOWah Pedal.Avantis4YouAudioVERTIOWah Pedal
Who makes FMIT?
FMIT is developed by Gilles Degottex.

At a glance

Platforms
Desktop
Languages
English
First seen
Jul 20, 2026
Activity
🟢 Active
Status
🟢 Active
Built for
Musicians and instrument players
Model
Open source
Solves
Accurately tuning musical instruments by visualizing and comparing their fundamental frequency to musical notes and scales in real time.

Developer

Gilles Degottex

Live coverage

Confidence
Medium · 70
Indexed
Jul 20, 2026
Lifecycle
Alive
Activity
Active
First seen
Jul 2026
Last seen
1d ago
Identity audit (9)
Entity ID
cmrto47w203ki12947x9s6qh6
Slug
fmit-flathub-org
Verification state
Indexed for public listing
Claim / listing state
Unclaimed · listed: yes
Index status
Included in index
Latest evidence snapshot
Jul 20, 2026
Timeline basis
Indexed-at chronology (no inferred launch/funding milestones).
Last updated
Jul 21, 2026
Canonical URL
https://flathub.org/apps/io.github.gillesdegottex.FMIT

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