KKitorra
12 tools live · more every week

Small tools for everyday problems.

Calculators, converters, and utilities that run entirely in your browser. No signup, no uploads, no tracking — just open a tool and use it.

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A Kitorra tool running in the browser
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Tip Calculator

Split a bill and work out the tip in seconds, with custom percentages and per-person totals.

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Tip percentage

$11.52

Tip

$75.52

Total

$37.76

Per person

Browse by category

37 tools across 8 categories, with more added every week.

Finance

1 live

Health

1 live

Study

3 live

Daily

4 live

Ambient

1 live

Web

1 live

Files

0 live

Fun

1 live

One tool for one job

A cross-section of what's live now — plus a few still on the way.

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Live

Tip Calculator

Split a bill and work out the tip in seconds, with custom percentages and per-person totals.

Live

Sleep Cycle Calculator

Find the best bedtime or wake-up time based on 90-minute sleep cycles.

Live

CGPA Calculator

Calculate your CGPA on a 4.0 scale with support for multiple semesters, credit weighting, and instant results.

Live

Unit Converter

Convert length, weight, temperature, volume, and speed between common units.

Live

Color Palette

Generate color palettes and check contrast ratios for accessible design.

Live

Password Generator

Create strong, random passwords with adjustable length and character rules.

Live

Decision Maker

Flip a coin, roll dice, or spin a wheel when you can't decide.

Coming soon

PDF Tools

Merge, split, and convert PDFs entirely in your browser — files never leave your device.

From the blog

Guides that go deeper than a calculator result.

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Student Life

How to Calculate CGPA: A Complete Guide With Examples

A plain-language walkthrough of the CGPA formula, a worked example semester by semester, and the mistakes that most often throw off the number.

5 min read