MJSFX

Sounds and effects design studio

Designlive
Visit site ↗First seen 16d ago · 2 platforms

What this is

A native Mac app for creating and exporting layered game sound effects with MIDI control. No AI inside, though it ships an MCP server for agent integration.

Our one-line summary — not the founder’s tagline.

How it works
A native Apple Silicon Mac app for creating game sound effects: start from built-in generators, layer multiple voices each with their own effects chains and LFOs, or mutate/randomize sounds to explore variations, with undo on every action. Exports WAV at multiple sample/bit rates, including per-layer stems, and supports custom MIDI controllers.
What's different
Sound files are stored as JSON, and while the app itself has no AI built in, the direct download ships with an MCP server for agent integration.
Best for
Game developers and sound designers who want a native, layer-based SFX creation tool with MIDI control.

What we measured

Nobody else publishes this — it comes from knocking on the door every day.

Watched by us
16 days
Last checked
54m ago

Where it shows up

Every group here is a page of its own — each one checked daily.

The numbersIs it still shipping, is it overpriced, where did it land — and what the price is built from.
The takewhere this launch stands, in one glance
Still shipping?
Still shipping — the site changed today. Evidence, not an announcement.
Is it overpriced?
Priced at the anchor — no crowd premium. What you see is what the signals say.
Where did it land?
Strongest on Devhunt1 votes.
Reality anchor
474 (+5% since IPO)
Market price
474
Checked
Jul 28
League price & chart
Market priceREPRICED DAILY
474
▲ +3.5%
7-day
+1.3% today
Will it still be moving in 4 weeks?

No money. No seat. It goes on your record — and in 28 days reality settles it.

Calls are closed while we rebuild accounts. You can still read every one of them.

Key stats
MRRNot connected
SectorDesign
The story

Design. Launched 16d ago on Devhunt, picking up 1 votes. Today, the site itself changed 54m ago — evidence it's still shipping, not just announcing.

Is it still shipping?WE CHECK THE SITE DAILY
SiteLive
read 54m ago
Last shippedToday
the page itself changed — that's shipping
Fade clock0 days silent

Moving right now. The clock only starts when a launch goes quiet.

We check this site every day, ourselves. A founder can post “still working on it” — a claim like that doesn't price. What we price is what we can verify from the outside: evidence, not announcements. The real question isn't “will this be huge?” — it's “will they still be moving in four weeks?”

Shipping record

1 separate day we saw this ship · source: page changed

Jul 28page changed

Beyan değil kanıt: founder “çalışıyoruz” diye post atabilir, ama sevk ettiyse izi kalır. ⚠️ Kaydı olmayan ürün “sevk etmedi” demek değildir — o üründe izleyecek bir kaynağımız yok demektir.

The market viewHow this launch is priced and ranked in our league — the investor side of the page.
Where it stands
Bigger than 91% of live launchesof 17,855

ranked by the reality anchor, not the market price

Strongest on Devhunt with 1 votes · counts toward price on 1 of 2 boards
Why 474 points?REALITY PRICE

It launched on Devhunt with 1 votes. It also showed up on 1 other board — but didn't place well enough on any of them, so none of them add to the price. Listing on twelve directories is free; placing well on them isn't.

Backing it does not move the price.

No matter how much money goes in. There is no pump here — you can't make yourself right by buying more. The line only moves on things that actually happened: an award, revenue that grew, a new platform, code that shipped — or silence.

The story so farEVERY MOVE, AND WHY
Jul 27468-0.4%Went quiet — bleeding
Jul 26470+0.4%Went quiet — bleeding
Jul 25468+0.6%Went quiet — bleeding
Jul 24465+0.6%Went quiet — bleeding
Jul 23462+0.4%Went quiet — bleeding
Jul 22460+0.4%Went quiet — bleeding
Jul 21458+0.4%Went quiet — bleeding
Jul 20456Went quiet — bleeding
Jul 17450Went quiet — bleeding
Jul 16450Went quiet — bleeding
Jul 15450Went quiet — bleeding
Jul 14450Went quiet — bleeding

En eski 1 hareket bu listede yok — toplam 13 olay var. 4 quiet days in between are left out — nothing happened on them. A launch that goes quiet eases down a little at a time — never a cliff you could have run from the night before.

MomentumTRACKED DAILY

Daily tracking just started for this launch — the first point is on the board. A second reading lands with tomorrow's run, and the curve builds from there.

How the launch is moving on its own board, day by day — the crowd's attention.
A flat line is normal: votes stop within a day or two of launch, on every board. What's unusual — and what actually counts — is a launch that keeps pulling votes long after its day is over.

About

MJSFX is a free, native macOS sounds and effects design studio. Start from a generator (lasers, explosions, blips, hits, etc) then build with layered oscillators, each with its own pitch sweep, envelope, and filters. Chain reverb, delay, distortion, bitcrush, and more per layer or across the whole sound, plus LFOs that can modulate knobs, including other LFOs. Everything exports to WAV, including retro formats like 22kHz/8-bit and per-layer stems. Sounds are repo-friendly JSON files as are all configuration files. It has extensive MIDI hardware support with soft pickup and per-controller profiles, a built-in library with folders and filtering, workspaces, a live "Sound Portrait" visualization drawn from real engine output, and twenty themes plus a browser-based theme builder. No in-app AI, but the direct download (and homebrew) version ships with an MCP server. Docs on the site. No ads, no telemetry, and you own everything you make. Requires Apple Silicon and macOS 14+.

Where it launched

2 platforms
PlatformVotesCounts toward priceLink
Devhuntstrongest1sets the price
Product Hunt6no

The board it did best on sets the price. Every other board only adds to it if the launch also placed high on that board too — because just showing up somewhere isn't an achievement. Listing on twelve directories is free; placing well on them isn't.

Discussion (0)

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