Countdown

See the remaining time until the date and time you selected.

Free and ad-free. No membership required. File operations work on your device; Voice reading and dictation can use the browser's online service.

How to use countdown?

See the remaining time until the date and time you selected. Fill in the relevant fields or select the supported entry. Use the action button on the page and check the result.

Before using the result

Lists and tracking data are stored on your device; It doesn't automatically sync between accounts or devices.

Related tools

Tools

What do you want to do?Category

My IP address and internet speed

Public IP, approximate country and city, network setup, and download/upload speed test.

Cut, combine and convert audio

MP3/WAV output, speed and volume adjustment.

Cut and edit video

Trim, mute, add subtitles and WebM/MP4 output.

Extract audio from video

Download the audio of the video that your browser can open as MP3 or WAV.

Create GIF from video

Save a short video segment as an animated GIF.

Word and character counter

Character, word, line and approximate reading time.

Clean and transform text

Case, space and repeat line cleaning.

Compare two texts

See differences between two texts based on line position.

File management

Create and unzip ZIP

Put files in a ZIP archive or unzip a ZIP archive.

File management

Batch rename file

Download files as ZIP with new names; Your original files remain untouched.

File management

Find identical files

Group files with identical content using SHA-256.

Create strong password

Generate passwords on your device with cryptographic random characters.

Check password strength

Local format control; No queries are made to the leaked password database.

File verification summary

Calculate the SHA-256 digest and compare it to the expected digest.

Pomodoro and timer

Set, pause and reset work/break times.

Work schedule

Create work schedule with days and times.

Replay cards

Create question and answer cards, shuffle them and test yourself.

To-do list

Add tasks, complete them, and export your list.

Habit tracking

Track your daily habits on your device.

Countdown

See the remaining time until the date and time you selected.

Edit JSON

JSON validation, indentation and compression.

Convert color code

Conversion between HEX, RGB and HSL values.

URL encode and decode

Secure encoding and decoding for URL components.

Base64 encode and decode

Convert Unicode text or file to Base64.

Try regular expression

Examine matches in a separate time-limited transaction.

Have text read aloud

Listen to the text with sounds available in the browser.

Convert speech to text

Dictation via microphone in supporting browser; can be sent to the audio provider.

Four operations and scientific calculation

The four operations are exponent, square root and factorial.

Number of days between two dates

Day, week and working day; optional deadline and holiday list.

Calculate age

Year, month, day and total days lived.

Add day, month or year to date

Forward or backward date calculation; The month end is adjusted automatically.

Time between two hours

Hour and minute difference, including hours past midnight.

Calculate percentage

Percentage of a number, percent change, and ratio.

Calculate discount

Discount amount and discounted price.

Calculate VAT

Calculate included/excluded amount with the rate you selected.

Unit conversion

Length, area, volume, mass, temperature, speed, time and data size.

Installment and credit account

Assumption of fixed interest and equal monthly installments; Additional fees are not included.

Simple and compound interest

The annual rate, duration and compounding frequency you select.

Savings account

Estimated savings with initial and end-of-month contribution.

Split account between persons

Total, tip and payment per person.

Fuel cost

Travel cost based on distance, consumption and liter price.

Electricity consumption calculation

Cost based on device power, operating time and kWh price.

Profit and profit margin

Cost, selling price, margin and profit above cost rate.

Compare unit price

Compare the unit cost of two products with the same unit of measure.

Average and weighted average

List of numbers or value/weight pairs.

GPA

Average with course grade and credit/weight.

Exam net

True, false and the error coefficient of your choice.

Calculate proportion

Find the unknown in the equation a/b = c/x.

Fraction calculation

Add, subtract, multiply or divide fractions.

Area, perimeter and volume

Rectangle, circle, triangle, box and cylinder.

Speed, distance and time

Find the third of the two values.

Convert amount with exchange rate

Calculate with the exchange rate you entered; Live exchange rate is not offered.

Amount after deduction

Net amount with the percentage and fixed deduction you determine.