Freedom251 › AI Music Mastering Software
Fire Lit AI Mastering
What Fire Lit AI Mastering is
Fire Lit AI Mastering is a free web tool for preparing finished audio mixes for distribution. It adjusts loudness, EQ, and compression, and accepts WAV or AIFF files in mono or stereo. Processing runs locally in the browser; the page says files are not sent to a server. No account or installation is required. Master for Release sets integrated loudness to –9 LUFS and the True Peak ceiling to –1.0 dB. Loudness Only Mode skips EQ and glue compression, raising loudness with a True Peak limiter. Other controls include a high-pass filter, with 80–120 Hz recommended for most tracks, subtle tone cuts near 320 Hz and 3.2 kHz, and light glue compression. You can compare the original with the mastered version and download the result. The release settings address loudness normalization and codec conversion on Spotify and Apple Music. Fire Lit AI identifies SubController LLC, established in 2024, as the operator; the company is based in Kawasaki, Japan.
Who it suits
It suits musicians who want to prepare a finished WAV or AIFF mix for distribution in a browser. The two mastering modes offer a choice between release-oriented processing and loudness adjustment without EQ or glue compression.
What it does well
- Free plan; no account or installation required
- Processes audio locally in the browser
- Accepts mono and stereo WAV or AIFF
- A/B comparison and mastered-file download
What to know first
- Web access only
- Input is limited to WAV or AIFF files
Plans
| Plan | Billed and limits | Price |
|---|---|---|
| Free online automatic mastering | No sign-up · WAV or AIFF · mono or stereo · runs in browser · download mastered file | Free |
As firelitai.com lists them, read 9 Oct 2026. The maker's own page has the final word.
Getting started
- Open the Fire Lit AI Mastering website
- Choose a WAV or AIFF file in mono or stereo
- Select Master for Release or Loudness Only Mode
- Adjust the available filter, tone cleanup, or glue compression options
- Compare the original and mastered versions
- Download the mastered file
Verdict
Fire Lit AI Mastering offers a focused set of mastering controls at no cost. Its local browser processing, two modes, and export options suit users preparing a finished mix for release.
Questions
Is Fire Lit AI Mastering free?
Yes. The online automatic mastering plan costs 0.00 USD and is described as completely free.
Do I need an account or installation?
No. The tool requires no software installation and no account.
Which audio formats are accepted?
It accepts WAV and AIFF files, in mono or stereo.
Are files uploaded to a server?
Processing runs locally in the browser, and the page says files are not uploaded to a server.
What does Master for Release do?
It normalizes integrated loudness to –9 LUFS and sets a True Peak ceiling of –1.0 dB.
Can I compare and download results?
Yes. You can A/B compare the original and mastered versions, then download the mastered file.
Facts from Fire Lit AI Mastering's own pages
- Company location and founding
- Subcontroller LLC lists its location as Kawasaki, Kanagawa, and says it was established on April 8, 2024. · subcontroller.co.jp, 9 Oct 2026
- Compare and export
- Users can A/B compare the original and mastered versions, then download the mastered file. · firelitai.com, 9 Oct 2026
- Founded
- 2024 · firelitai.com, 28 Sept 2026
- Glue compression
- Glue compression applies light bus compression to make elements in the stereo mix feel cohesive. · firelitai.com, 9 Oct 2026
- Headquarters
- Saiwai-ku, Kawasaki, Kanagawa, Japan · firelitai.com, 28 Sept 2026
- High-pass filter
- The high-pass filter cuts frequencies below a specified cutoff, with 80–120 Hz recommended for most tracks. · firelitai.com, 9 Oct 2026
- Input formats
- The tool accepts WAV or AIFF files and supports both stereo and mono audio. · firelitai.com, 9 Oct 2026
- Installation and account
- The tool requires no software installation or account, and is described as completely free. · firelitai.com, 9 Oct 2026
- Integrations
- The page mentions Spotify and Apple Music as streaming platforms whose loudness normalization and codec conversion are relevant to its release mastering settings. · firelitai.com, 9 Oct 2026
- Local processing
- Audio processing runs locally in the browser, and the page says files are not uploaded to a server. · firelitai.com, 9 Oct 2026
- Loudness-only mode
- Loudness Only Mode bypasses the EQ and glue compression stages and raises loudness with a True Peak limiter. · firelitai.com, 9 Oct 2026
- Operator
- Fire Lit AI identifies SubController LLC as its operator. · firelitai.com, 9 Oct 2026
- Purpose
- Fire Lit AI Mastering automatically adjusts loudness, EQ, and compression for audio files. · firelitai.com, 9 Oct 2026
- Release mastering
- The Master for Release option normalizes integrated loudness to –9 LUFS and sets a True Peak ceiling of –1.0 dB. · firelitai.com, 9 Oct 2026
- Tone cleanup
- Tone cleanup applies subtle cuts around 320 Hz and 3.2 kHz to reduce muddiness and harshness. · firelitai.com, 9 Oct 2026
- Use case
- The page describes mastering as a final step before music distribution to help finished mixes sound consistent across listening environments. · firelitai.com, 9 Oct 2026
Where Fire Lit AI Mastering stands on Freedom251
- AI Music Mastering Software#12 of 50