Biribá Tools

Online tools that just work

A growing set of small, focused tools for tech and finance. Pick one below.

  • Free
  • No sign-up
  • Fast

Tech

⚡

ESP / NerdMiner web flasher

Flash NerdMiner v2 firmware to ~30 ESP32 boards from your browser — mirrored, SHA-256 verifiable.

🌐

What's my IP

See your public IP address and network info — plus a simple JSON API.

🔳

QR code generator

Create QR codes for links, text, wifi and more.

Finance

📈Coming soon

Compound interest

Project your savings over time, with a chart.

🏠Coming soon

Mortgage calculator

Simulate a home loan (SAC/Price) with a chart.