Toolbox — Useful Online Tools
Toolbox is a service with useful tools for everything. Convert units, calculate values, generate passwords and more — all in one place.
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Business Tools
A practical workflow for pricing, discounts and VAT before preparing an invoice, offer or agreement.
Open toolCalculators
Handy calculators for everyday tasks
VAT Calculator (Russia)
Add or extract Russian VAT at 22%, 10%, 5%, 7% or 0%. Calculate multiple items with different rates, quantities and discounts.
Tip Calculator
Calculate tip amount and split the bill among multiple people
Percentage Calculator
Find percentages, increases and decreases, add or subtract a percentage, or recover the whole from a known part.
Discount Calculator
Calculate sale prices, recover original prices, find discounts from two prices or apply successive discounts.
Margin and Markup Calculator
Calculate margin, markup and profit from cost and selling price, or find a price for your target percentage.
Amount in Words — Russian Rubles
Spell out an amount in Russian rubles and kopecks in Russian or English, then copy it into a document.
Self-employment: NPD and deduction
Calculate Russian NPD tax, the deduction and income remaining after tax.
Dates and workdays
Days between dates, deadlines and Monday–Friday workdays.
Home renovation
Wall area, reserve, paint, tiles and wallpaper for a room.
Loan and early repayment
Payment, interest, schedule and early-payment effect.
Generators
Random generators for various needs
Password Generator
Generate secure random passwords with customizable length and character types
UUID Generator
Generate random Universally Unique Identifier version 4 identifiers — multiple at once
Lorem Ipsum Generator
Generate Lorem Ipsum placeholder text in paragraphs, sentences, or words
Color Picker & Converter
Pick a color and convert between hexadecimal, RGB, and HSL color formats
Barcode Generator
Generate barcodes from text or numbers
QR Code Generator
Create QR codes for website links, Wi-Fi, contacts, email, calls, SMS, calendar events and text.
Random Number Generator
Generate random numbers within a custom range
Punto Switcher (Keyboard Layout)
Convert mistyped text between English and Russian keyboard layouts
Punycode Converter (Domain)
Convert domain names between Cyrillic (.рф) and Punycode (xn--) format
Dice Roller
Roll 1 to 4 dice and see your lucky numbers
Coin Flip
Flip a coin — heads or tails. Test your luck
3D Printing
Tools for inspecting 3MF files, planning orders, building FDM profiles and choosing fits.
3MF Inspector
Read model and profile settings from a 3MF file.
Print and order planner
Check a spool and calculate time, cost and order price.
FDM profile builder
Choose layer, walls, speed and flow for a nozzle and material.
Fit clearance
Choose clearance for free, press or snap fits.
Print calibration
Calculate shrinkage and choose a next temperature or retraction step.
Converters
Convert between different units of measurement
Length Converter
Convert between length units: meters, kilometers, miles, feet, inches, and more
Mass Converter
Convert between mass units: kilograms, grams, pounds, ounces, tons, and more
Temperature Converter
Convert between Celsius, Fahrenheit, Kelvin, and more
Volume Converter
Convert between volume units: liters, gallons, cups, milliliters, and more
Area Converter
Convert between area units: square meters, acres, hectares, square feet, and more
Speed Converter
Convert between speed units: kilometers per hour, miles per hour, knots, meters per second, and more
Time Converter
Convert between time units: seconds, minutes, hours, days, and more
Data Storage Converter
Convert between data storage units: bytes, kilobytes, megabytes, gigabytes, and more
Data Transfer Speed Converter
Convert between data transfer speed units: bits per second, kilobits per second, megabits per second, gigabits per second, megabytes per second, and more
Pressure Converter
Convert between pressure units: pascals, bar, pounds per square inch, atmospheres, and more
Energy Converter
Convert between energy units: joules, calories, kilowatt-hours, British thermal units, and more
Power Converter
Convert between power units: watts, kilowatts, horsepower, megawatts, and more
Numeral Systems Converter
Convert between numeral systems: binary, octal, decimal, hexadecimal
Practical tools
Local tools for processing files and images directly in your browser.
About Us
Toolbox is a free online service with handy tools for everyday tasks. Here you'll find unit converters, calculators, and generators — everything to quickly calculate, convert, or generate the data you need. All tools work entirely in your browser, and your data never leaves your device. We're constantly adding new features to make your work easier and more convenient.