Useful tools

Converts text between uppercase, lowercase and more

Counts characters, words and sentences

Two-way translation with sound, light and vibration, a telegraph key and a trainer

Guillemets, dashes and non-breaking spaces, every edit highlighted

Six cases, the way back to the nominative, job titles and lists

«ghbdtn» becomes «привет»: text typed in the wrong layout

Converts Russian text to Latin script

Differences between two texts: lines, words, characters, even invisible ones

Formats and minifies JSON

Encodes and decodes URL strings

Encodes and decodes Base64

Generates MD5 hash from a string

Decodes JWT header and payload, verifies signature

Live match highlighting and explanation of each token

Live preview, clean code and a standalone file — parsed in your browser

Finds hardcoded strings and future overflow before translation is ordered

Converts between HEX, RGB and HSL. Live color preview

Builds harmonious color schemes from a single color

Text and background contrast per WCAG: levels AA and AAA, and how to fix a colour

Converts numbers between binary, octal, decimal and hexadecimal

Bitwise AND/OR/XOR/NOT, shifts and an IEEE 754 float32 breakdown

Arabic to Roman numerals and back. Step-by-step breakdown, reference table

Convert to HEX and back, byte breakdown and hex colours

Convert to octal and a chmod permissions calculator

Bits, bytes, kilobytes, megabytes, gigabytes and terabytes

Millimetres, centimetres, metres, kilometres, miles, inches, feet

Grams, kilograms, tonnes, pounds, ounces, pud

Celsius, Fahrenheit, Kelvin and historical scales — all at once

Converts Unix time to a readable date and back. 1741434000 → 8 March 2026

Converts time between UTC and any timezone in the world

Converts between formats: DD.MM.YYYY, ISO 8601, RFC 2822 and others

Exact age, birth weekday, zodiac signs and days lived

Countdown with sound, laps, Pomodoro and interval training

Counts days, weeks, months or years between two dates

Creates strong random passwords with charset settings and entropy

Generates unique identifiers

Placeholder text: Latin, Cyrillic, HTML, Markdown, JSON

Links, Wi-Fi, contacts and GOST payments — with a scannability check

Fake persons: name, email, phone, documents, JSON / CSV / SQL

Network address, broadcast, mask, wildcard, subnet splitting

Version, private or public, mask, range and representations of an address

A number spelled out in Russian for invoices and contracts: kopecks, 15 currencies

Checksum for INN, KPP, SNILS and OGRN plus decoding: region, tax office, year

Percentage of a number, discounts and markups, Russian VAT at the 2026 rate

Payment, interest and schedule for a loan or mortgage with early repayment

Russian income tax month by month, with take-home pay

Shows the location, date and camera hidden in a photo and strips them without re-encoding

SHA-256, SHA-1, SHA-512 and MD5 with reference comparison — the file never leaves the browser