Built at FOH in Cologne · Free tools · Buy once

Doors in 0:59.
You’re ready.

The rider is on a laptop at home. The running order lives in a WhatsApp thread. The patch gets typed twice. I built these browser tools so show day stops going like that: show clock, stage plot, setlist, RF and power plan, all under one free account, in the browser on your laptop or tablet, and the show-day ones on your phone.

Create your free account Walk through a show day

Free tools, free account
Buy once, no subscriptions
No ads, no third-party trackers

Show Clock ● On schedule

Doors open in 00:59 19:59:01

Up next 20:00 Set Support — Static Bloom

FOH laptop
Monitor world
Stage manager
Backstage phone

This clock is live. Every crew phone shows the same second, synced in under 3 s.

One show day · 28 tools

From the first truck to the last encore.

Scroll through the day. Every tool does one job, and picks up where the last one left off.

11:00

Plan the rig

Before the truck rolls.

FreqSense Free Clean wireless-mic windows for DE, UK, US and EU, with the rules of 14 countries. PowerSense Free Loads per phase, cable checks and distro headroom. RoomSense Free SPL, LUFS, room modes and EQ in one reference. MicSense Free Specs, response curves and polar patterns. RiderSmith €29 Tech riders in 11 languages, built from your other tools DMX Dip Free DMX address to DIP switches and back, with your equipment list.

15:00

Load-in

The plan meets the stage.

Stage Plot Generator on a tablet: a five-piece band’s stage plan — drum kit upstage centre with the drummer’s mic and a wedge, guitar and bass amps on both sides, three vocal mics on the front line and four wedges, each with its channel or output number.

Stage Plot Generator €49 Stage plot, input list and DMX patch in one document. PatchSmith €24 Patch sheets, with channel names and colors straight into X32/M32 and SQ.

17:30

Soundcheck

Listen, measure, tune.

SpectraSense ringing out Wedge 3 in a browser: the live spectrum of the room noise and, below it, the card for the last ring, 1,120 Hz, grayed out as gone after its cut (GEQ 1k + 1.25k, pull both faders −3 dB) — then a new ring at 2,340 Hz grows out of the noise, is marked on the spectrum and flagged on the card, first growing, then ringing: D7 −7 cents, GEQ 2.5k, pull the fader −3 dB.

SpectraSense Free Rings out a wedge with you and writes down every frequency. Noise Bench Free Pink noise, M-Noise, STIPA and tones, with a live RTA. BPM Forge Free Tap tempo, metronome, tuner and delay times. TempoSense Free Hears the tempo from any input. PitchSense Free Hz ↔ note, cents and reference tones.

19:00

Doors to encore

Everyone on the same second.

Show Clock’s operator view on a laptop: a countdown ring running out the last seconds of Doors open, with the next slot below it and the night’s running order beside it — Doors LIVE, the support set NEXT.

Show Clock €49 Countdown and running order on every crew phone in 3 s. Up to 5 stages on one wall. Works offline. SetlistForge €29 Setlists with timing, Show Mode and royalty report prep. ClickSmith Live Coming soon Plays your set live: click, stems and cues, gapless. SelektorCue €39 Song requests from the dance floor, with BPM and key for the DJ.

Between gigs

Train and prep

Get better on the days off.

The SoundSense dashboard on a phone in phone-speaker mode: mono, mids and highs only, the stereo games hidden; below it the EQ training cards with level and personal best.

SoundSense €49 Ear training for sound engineers. 33 modules. ClickSmith Free Turn any song into an L/R click track. LoudSense Free Check a mix or a recording before it goes out: LUFS, true peak, clips. Nothing uploaded. RiggingSense Free Learn bridle and truss statics, step by step. LightSense Coming soon Eye training for lighting engineers — in development

On your computer

Desktop apps & plugins

Native, for the RF kit, the lighting network and the studio.

KlarFunk’s spectrum view in its browser demo, on synthetic data: a 470–700 MHz sweep with labeled carriers such as Vocal RX 1 and IEM Band L, occupied ranges shaded red and free ones green. The sweep is paused and the noise threshold dragged on the chart: up to −61 dB, then down into the noise floor at −99 dB, where everything counts as occupied — 0 free channels, 1 occupied range — and back to −82 dB, 10 free and 9 occupied.

KlarFunk €49 RTL-SDR spectrum scanner and frequency advisor. Lighting Watchdog Free beta Logs every Art-Net and sACN dropout with its likely cause. Free Art-Net calculator SubPress €19 Low-end control for live PA and bass. Zero latency. Airchain €19 FM radio airchain behind one SQUASH knob. LoudSense Plugin €19 The loudness verdict on your master bus, with the fix in dB. WidthForge €19 Multiband stereo width that stays mono-safe.

Free tools open as soon as you confirm your email. Full versions unlock with a one-time Gumroad key. The platform speaks 11 languages. (plus VAT where applicable, added at checkout)

Create free account

The rider problem

Where’s the latest version of your rider?

Somewhere on a laptop that’s at home. Or attached to an email from March. There’s the club version, the festival version and the one with the old drummer’s kit in it, and the venue just asked for “the current one, please”.

Here your rider lives in your account, not in a file. Your input list, wireless plan, power and set lengths already sit in the other tools. RiderSmith pulls them in, you check every row, and the venue gets one link. Changed something from your phone in the van? Press Update link and the same link shows the new version.

Stage Plot Generator €49 input list channels

FreqSense Free wireless plan frequencies

PowerSense Free load plan site total

SetlistForge €29 set lengths schedule

RiderSmith €29

✓ Pulled from 4 tools · nothing typed twice

FreqSense and PowerSense are free. Stage Plot Generator and SetlistForge have free plans that import too; their full versions are bought once. RiderSmith has a free plan too; the venue link is part of the full version. Stage Plot Generator feeds PatchSmith the same way.

All four full versions in one: the Advance Pack — €89 instead of €131 Stage Plot Generator · SetlistForge · RiderSmith · PatchSmith plus VAT where applicable, added at checkout

Audio plugins

For the DAW and the live rig.

Small, focused plugins: VST3, AU and standalone apps. Buy once, no subscription.

All audio plugins

One account, one show

Why every tool lives under one login.

Most tools make you start from an empty page every time. Squaresmile works the other way: you enter something once, and it’s there wherever you need it.

Type it once.

Channels from your stage plot go straight into PatchSmith and your rider. Frequencies come from FreqSense, power from PowerSense, set lengths from SetlistForge. No copying between tabs.

Your show on every device.

Plan on the laptop at home, open the same plot on the tablet at load-in, run the clock from your phone. Nothing to email to yourself.

Buy once, keep it everywhere.

Full-version keys are linked to your account, not to a browser. On a new laptop, you log in and everything is still there.

One place for your data.

No third-party trackers, no data brokers. If you delete your account, everything is removed with one button.

That’s why most of the free tools ask for an email, too. It’s what connects your whole show day.

Create your free account

Pay once. Own it. Leave whenever you want.

I got tired of subscriptions. Every tool I used on tour wanted a monthly fee, and the day you stopped paying, your work was locked away. So here it works the other way round: you buy a tool once and it’s yours, updates included. Nothing renews in the background.

No ad network watching. No analytics company. Nobody I sell your data to. Your setlists, plots and plans sit on my server for one reason: so they follow you from the laptop to your phone. Delete your account and it’s gone. Properly gone. No “soft delete”, no win-back emails.

I’d rather you pay once because a tool saved you an afternoon than every month because you’re scared of losing your files.

€0

To start

Every free tool. No card, no trial clock.

1×

Per full version

One Gumroad payment, updates included.*

Third-party trackers

No ads, no data brokers.

Delete

= gone

Your account and your data, hard-deleted.

*Browser tools include every future update. Desktop apps and plugins include updates within the major version you bought.

Why this exists

I built these at FOH, because I needed them.

I’m Timothy. I’ve worked in live production and at FOH for over ten years, in Cologne’s clubs and on festival stages, and artists from 52 countries have stood on my stages. Every night the same problems came back: a tool that needs an install, a login wall, a subscription, or a stage manager screen-sharing a timetable to six people at once.

So I started building the tools I wanted. Every one of them started as a problem at a gig.

More about me Timothy · FOH & monitor engineer · Köln

01
Show day comes first
A tool has to work ten minutes before doors: fast, readable in a dark venue, no hunting for files.
02
Crews share, not screen-share
The stage manager runs Show Clock; the crew opens a link on their own phone. In sync in about 3 seconds, no app.

On your Mac

Squaresmile, right in your Dock.

No App Store, no installer. Add the platform to your Dock from Safari and it opens in its own window, like any app — and Show Clock keeps running when the venue Wi-Fi drops.

Open squaresmile.de in Safari.
Click Share, then Add to Dock.
Keep the name and click Add.

On a phone or tablet? Add it to your home screen

30 seconds, no sound

Straight answers.

What is Squaresmile Tools?

Squaresmile Tools is a set of browser tools, desktop apps and plugins for live production: show clock, stage plot, setlist, RF, power and more. The free tools stay free; full versions are bought once. It is made by Timothy Schulz (Squaresmile Media), a live sound engineer in Köln.

Do I need an account?

For most free browser tools, yes, a free one: email and password, about 30 seconds, no card. A few things work without one: LoudSense, the online tuner, the MicSense microphone pages, the demos on the BPM Forge and PitchSense pages, and the KlarFunk download. People you share with (crew links, venue links, band links) never need an account.

Is anything here a subscription?

No. Full versions are one-time Gumroad purchases — pay once, own the license. The free tools stay free.

What happens if I stop paying?

There is nothing to stop. No recurring billing exists anywhere on the platform: you buy a tool once and it stays unlocked on your account — updates included.

Does it work offline?

Show Clock does — it installs as a full offline PWA, so the timer keeps running when venue Wi-Fi does not. SoundSense keeps working once loaded, and the KlarFunk desktop app is 100% local. The other browser tools need a connection.

Mac or Windows?

The browser tools run in any modern browser on any OS. Desktop apps and plugins: KlarFunk, Lighting Watchdog, WidthForge, SubPress and the LoudSense Plugin run on macOS and Windows. Airchain is VST3 / AU for macOS only.

● Live

The doors are open.

Free account, 30 seconds, no card. The free tools are yours tonight.

Create your free account Already in? Log in

LoudSense Plugin

Doors in 0:59.You’re ready.