RAKKOTOOLS

Extract domain names from text and web pages (URLs)

Extract email addresses from text and remove duplicates

Count characters, bytes, lines, and more

Sort a list

Convert and restore garbled Japanese text

A tool that converts text into gyaru character style for display

Compare text and show the differences

Search and replace text (supports regular expressions)

Look up Whois information for domains and IP addresses

Open multiple URLs at once

Convert a domain name to an IPv4 address

Check your IP address along with network and device information

Convert a string to Punycode, or convert Punycode back

Check whether a host is reachable

Check the state of ports on an IP address or host name

Check email address format and the reachability of the domain and MX records

Extract TITLE, DESCRIPTION, ROBOTS, and CANONICAL URL

Check the size and appearance of the OGP image, title, and description when sharing on social media

Extract headings, TITLE, and page character count

Detect WordPress themes, plugins, and servers from a URL

Create llms.txt for AI crawlers from form input

Create self-signed SSL certificates for free

Generate secure random passwords

Create a hashed password to write into a .htpasswd file

Convert SSL certificates to various formats

Display the contents of an SSL certificate

Protect a PDF by setting a password

Unlock a password-protected PDF

Pair-check an SSL certificate against a private key or a CSR file

Validate whether XML is valid against an XML schema (XSD)

Check HTML for syntax errors or formatting errors

Generate and verify cron expressions

Convert strings with MD5/SHA1/SHA256 and other algorithms to generate hash values all at once

Check the syntax of MySQL queries

Create an XML schema definition (XSD) from XML

Format JavaScript and CSS source code

Encode data into a JSON string, and decode a JSON string back into data

Extract TITLE, DESCRIPTION, ROBOTS, and CANONICAL URL

Extract all images on a website

Check HTML for syntax errors or formatting errors

Extract external and internal links

Encode convertible characters into HTML entities and decode HTML entities into characters

Create and edit HTML visually

Convert an Excel table into an HTML TABLE TAG

Preview all 36 CSS cursor types by hovering and copy the code instantly

Convert to Unicode characters and search for Unicode characters

Decode a Base64 string into an image

Convert between plain text and ASCII

Convert data to a Base64 string, and convert a Base64 string to data

Convert between text and decimal

Convert and restore garbled Japanese text

Encode convertible characters into HTML entities and decode HTML entities into characters

Two-way conversion between binary data and plain text

Create a count-up timer online

Create, share, and embed a digital counter that automatically counts up at a specified interval from a particular date and time.

Show the current time based on geolocation

Create a customizable countdown timer. Supports URL sharing and embedding

Convert a date and time to a timestamp, and a timestamp to a date and time

Count elapsed time to 1/100 of a second

Create an alarm timer

Show the date and time in cities around the world

Get a color code from a color palette or color space

Extract color codes from an image or image URL

Generate favicons and app icons from an image

Generate CSS gradient code with live preview by simply selecting colors and angles

Preview all 36 CSS cursor types by hovering and copy the code instantly

Generate an 11-shade palette (50–950) and configuration code for Tailwind CSS from a single Hex color code

Adjust effects like blur and brightness with sliders, preview and generate CSS filter code in real time

Draw one word from each of 5 categories to generate an illustration prompt in one sentence. Includes pinning and history.

Generate ASCII art from text or images

Extract all images on a website

Make a specific color in an image transparent to create a PNG image

Decode a Base64 string into an image

Add text to images to create memes

Generate a screenshot image from a URL

Extract color codes from an image or image URL

Convert videos to GIF

Randomly divide into teams and pick organizers or representatives

Randomly draw one from a list of numbers, names, and more

Choose a worldview and gender to generate up to 20 fictional full names at once

Arrange items you input in a circular wheel, spin it, and randomly select one

Get random conversation topics suited to any scene with just one button. Includes slot machine-style animation

Create a ladder lottery from participants and outcomes, then trace the lines to reveal results

Flip a coin and randomly decide heads or tails

Create bingo cards for multiple players in bulk as A4 print-ready PDF

Extract domain names from text and web pages (URLs)

Look up Whois information for domains and IP addresses

Convert a domain name to an IPv4 address

Convert a string to Punycode, or convert Punycode back

Encode characters and symbols into special codes, or decode URL-encoded strings

Check the DNS records of a domain name

Show regional information from an IP address, host, or domain

Diagnose name resolution by querying multiple DNS servers simultaneously

Convert videos to GIF

Add a background to your audio file and convert it to an MP4 video

Convert a web page into a PDF file

Extract all images from a PDF

Protect a PDF by setting a password

Unlock a password-protected PDF

Convert various files to PDF

Add a header and footer to each page of a PDF

Extract specified pages from a PDF to create a new PDF

Add page numbers to each page of a PDF

Count characters, bytes, lines, and more

Calculate the probability of getting a target item and the expected number of pulls to complete all items based on drop rates and number of pulls

Convert units of flow rate, concentration, density, viscosity, surface tension, and permeability

Convert units of speed

Convert units of equivalent dose, radioactivity, exposure, and absorbed dose

Convert units of energy

Convert units of weight and mass

Convert units of energy, work, heat, and electrical energy

Convert audio files

Trim audio files

Reads the current time aloud and automatically announces it at regular intervals you choose

Add a background to your audio file and convert it to an MP4 video

Look up Whois information for domains and IP addresses

Convert a domain name to an IPv4 address

Check your IP address along with network and device information

Calculate the range of IP addresses based on an IPv4 or IPv6 CIDR address

Convert an IPv4 address into IPv6 notation

Show regional information from an IP address, host, or domain

Determine if your connection supports IPv6

Generate ASCII art from text or images

Create username suggestions for SNS and games from your favorite words

Generate and verify cron expressions

Create a count-up timer online

Convert strings with MD5/SHA1/SHA256 and other algorithms to generate hash values all at once

Create, share, and embed a digital counter that automatically counts up at a specified interval from a particular date and time.

Generate secure random passwords

Create a hashed password to write into a .htpasswd file

Create username suggestions for SNS and games from your favorite words

Check the size and appearance of the OGP image, title, and description when sharing on social media

Extract domain names from text and web pages (URLs)

Extract TITLE, DESCRIPTION, ROBOTS, and CANONICAL URL

Extract all images on a website

Extract email addresses from text and remove duplicates

Extract external and internal links

Get a color code from a color palette or color space

Extract color codes from an image or image URL

Extract all images from a PDF

Check HTML for syntax errors or formatting errors

Check the syntax of MySQL queries

Format and validate JSON for readability

Check the syntax of PHP code

Paste a JWT to view its contents and verify the signature

Format JavaScript and CSS source code

Format HTML code in your preferred style

Format and validate JSON for readability

Format SQL statements for better readability

Format XML strings

Create self-signed SSL certificates for free

Convert SSL certificates to various formats

Display the contents of an SSL certificate

Pair-check an SSL certificate against a private key or a CSR file

Display the contents of a CSR (Certificate Signing Request)

Confirm that an SSL certificate is correctly installed on a server

Randomly divide into teams and pick organizers or representatives

Randomly draw one from a list of numbers, names, and more

Calculate the probability of getting a target item and the expected number of pulls to complete all items based on drop rates and number of pulls

Measure your tap speed and get your CPS and 5-level rank

Arrange items you input in a circular wheel, spin it, and randomly select one

Create a ladder lottery from participants and outcomes, then trace the lines to reveal results

Flip a coin and randomly decide heads or tails

Draw numbers from 1 to 75 and display them large on the board and history

Randomly divide into teams and pick organizers or representatives

Generate ASCII art from text or images

Randomly draw one from a list of numbers, names, and more

A tool that converts text into gyaru character style for display

Add text to images to create memes

Measure your tap speed and get your CPS and 5-level rank

Convert between characters and Morse code, and play the code as audio

Visualize your 3 biorhythm cycles—physical, emotional, and intellectual—as graphs based on your birth date