4Brains Labs

From the engineering team at 4Brains Technologies

Free tools, engineered like products.

We build interactive systems for live events. Along the way we make small browser tools we needed ourselves — and open them to everyone. No signups, no watermarks, no “pro” tier.

Browse the toolsWhy we give them away →
  • 2tools live
  • 0paywalls
  • 0watermarks

What’s on the bench

How we work

Built for our own work first

Every tool here started as something we needed on a real project — engraving serials on a batch of printed parts, making artwork for an activation. If it saves us time, it will save you time.

Free without the catch

We don’t run these on expensive render farms; most of them run entirely in your browser. There is no server bill to recover, so there is nothing to lock behind a paywall. The sites carry a few ads and that covers hosting.

Your data stays yours

Tools process as much as possible on your device. Where a file has to touch a server, it is deleted automatically within days and never used for anything else.

The studio behind the lab

4Brains Technologies designs and deploys integrated hardware and software systems for experiential environments — live stages, brand activations, infrastructure projects and public installations across India, from AI brand activations at Lollapalooza 2025 to kinetic LED architecture. 4Brains Labs is where the tooling we build along the way gets a public home.

See the studio’s work

Have a tool in mind?

If there is a small, annoying job you keep doing by hand, tell us. The best tools on this page came from exactly that kind of message.

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