BIRO Tools

Simple, fast and useful web utilities.

Services / Info

Power outages Serbia

Search planned electricity outages by location and date.

*The data are related to the territory of Serbia and do not represent the official data of the distributor.

Serbian version

Developer tools

CRON generator

Create CRON expressions with examples for Linux and Java (Quartz) with validation and examples.

Open tool

URL Encode

Fast percent‑encoding.

Open tool

URL Decode

Decode percent‑encoded URLs (UTF‑8).

Open tool

WHOIS/RDAP

Check domain or IP by WHOIS or RDAP query.

Open tool

Calculators

Interest calculator

Compute interest for a given principal, period and rate.

Open tool

Salary calculator Serbia

Net/gross breakdown with taxes and contributions.

Open tool

Educational tools

Serbian declension

Automatically inflect Serbian words across grammatical cases.

Open tool

Games

Welcome to BIRO Tools

A tidy collection of useful web utilities — grouped by purpose.

ℹ️ Information

Service & info pages (power outages…).

See services

🛠️ Developer tools

CRON builder, URL conversions and more.

See dev tools

📚 Educational

Serbian declension and other language tools.

See educational

🎮 Games

Short games for a quick break.

See games