Thirteen tools live · A Squaresmile Media platform
Browser-native tools for FOH, monitor world, backstage and the studio — show clocks, riders, power plans, RF coordination and more. License-locked, crew-shareable, and designed for people who’d rather mix sound than fight software.
Premium tool HTML never leaks via URL.
Show Clock master ⇄ shared view in ≤3 s.
Web Share, Clipboard, Fullscreen, Wake Lock.
Platform tool or standalone embed.
The Lineup
Each one does a single job well. See it in action on its own page, or create a free account and start using it now — premium tools unlock with a one-time Gumroad key. The whole platform speaks 11 languages.
Free
Tempo · Metronome · Setlists
Tap to lock a tempo, build a setlist with per-song BPM and time signature, then tune up — metronome, tuner and delay-time calc all built in.
Free
Wireless · Spectrum · DE/UK/US/EU
Plan your RF frequencies before you travel. See TV-channel occupancy and find safe wireless-mic windows across four regions — so your gear’s legal and clear in every country.
Free
Pitch · Cents · Reference tones
Hz to note, note to Hz, instantly. Read the cents you’re off pitch and play an audible reference tone — quick checks without firing up a tuner.
Premium
Stage timer · Realtime crew share
A full-screen stage timer for FOH and backstage. Run it from the booth and your crew watches the same countdown on their phones — synced in three seconds, no app.
Free
SPL · LUFS · Room modes
SPL, LUFS, room modes, EQ-delay and psychoacoustics in one reference. Save a profile per venue and pull it straight back up on stage at the next gig.
Free
Click tracks · Stereo WAV
Build a click track in the browser: load a song, set tempo and offset, pick your click, and export a stereo WAV — song left, click right.
Free
Loads per phase · Cable checks
Know your rig fits the venue power before load-in: loads balanced across L1–L3, cable gauge and voltage-drop checks, and a printable phase plan for the house electrician.
Free
Bridles · Truss loads · Training
Rigging statics you can feel: drag hoists and bridles in a live sandbox, check WLL and safety factors, and level up through a gamified trainer with worked explanations.
Premium
Setlists · Show Mode · Royalty reports
Build setlists with timing, notes and changeovers, run them on stage in Show Mode, and export performed-song reports for GEMA and other royalty agencies.
Premium
Ear training · EQ · Compression
Train your ears on real instrument stems: identify EQ moves, delays, panning, compression and more by ear — with mastery tracking, streaks and ranks.
Premium
Stage plots · Input lists
Drag a professional stage plot together, keep the input list in sync, and hand venues an export-ready tech rider.
Premium
Tech riders · 11 languages
Assemble the tech rider your venue actually reads: structured sections, professional clauses in 11 languages, your logo on top — with channel lists, frequencies and power plans imported from your other Squaresmile tools.
Premium
RTL-SDR · Live spectrum · Waterfall
One USB dongle, one desktop app. Sweep the UHF band in seconds, watch the live waterfall, and let the Frequency Advisor print an intermod-safe coordination plan for your mics and IEMs.
Premium
Low-band comp · Zero latency
Split the signal once between 40 and 400 Hz: compress the low band, saturate the high band, recombine phase-coherently with zero added latency. Tight enough for the mix, safe enough for front of house.
Eye-training for lighting engineers and designers — the visual counterpart to SoundSense. Learn to read colour, intensity, beam position and movement on real fixtures. In development.
In Three Steps
Email + password. Free tools unlock the moment you verify your email. No credit card, no trial gate, no SaaS theatre.
Buy any premium tool on squaresmile.gumroad.com, paste the key on the platform, done. Activation is verified server-side against Gumroad — your key is bound to your account.
Open the platform on the FOH laptop, on a tablet at monitor world, on your phone backstage. Share links let crew view in real time without an account.
Built for Engineers, by an Engineer
A decade running sound for festivals and tours taught me three things — and the platform is the answer to all of them.
Tools should disappear into the workflow. No login walls when you need a setlist NOW. Free tools work after a 30-second signup. Premium tools verify instantly against Gumroad.
Show Clock has a master / viewer model: stage manager runs the timer, crew opens a share link on any phone — sync in three seconds, no app, no install.
No tracking cookies. No analytics. No data brokers. Only technically-necessary session cookies for login. Cancel anytime, your account hard-deletes — no recovery, no “soft delete.”
Premium tools are Gumroad one-time purchases. No recurring billing, no “annual seats,” no “you cancelled so your data is locked.” Your license, your tool, forever.
Squaresmile Tools is a sub-brand of Squaresmile Media — sound direction, podcast production, and digital tools for audio professionals.
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