RAKKOTOOLS

Extract domain names from text and web pages (URLs)

Extract email addresses from text and remove duplicates

Count characters, bytes, lines, and more

Compare text and show the differences

Search and replace text (supports regular expressions)

Sort a list

Convert the case of text

Preview Markdown in real time

Look up Whois information for domains and IP addresses

Create QR codes for a variety of purposes

Open multiple URLs at once

Convert a domain name to an IPv4 address

Check your IP address along with network and device information

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

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

Convert a string to Punycode, or convert Punycode back

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

Generate secure random passwords

Create self-signed SSL certificates for free

Confirm that an SSL certificate is correctly installed on a server

Create a hashed password to write into a .htpasswd file

Convert SSL certificates to various formats

Check the security measures in HTTP response headers

Unlock a password-protected PDF

Display the contents of a CSR (Certificate Signing Request)

Generate and verify cron expressions

Check the syntax of MySQL queries

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

Check HTML for syntax errors or formatting errors

Check the syntax of PHP code

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

Format HTML code in your preferred style

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

Create and edit HTML visually

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

Convert an Excel table into an HTML TABLE TAG

Preview Markdown in real time

Two-way conversion between binary data and plain text

Generate favicons and app icons from an image

Convert between text and decimal

Convert between plain text and ASCII

Convert to Unicode characters and search for Unicode characters

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

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

Decode a Base64 string into an image

Create a count-up timer online

Create an alarm timer

Create a customizable countdown timer. Supports URL sharing and embedding

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

Count elapsed time to 1/100 of a second

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

Show the current time based on geolocation

Show the date and time in cities around the world

Generate favicons and app icons from an image

Extract color codes from an image or image URL

Get a color code from a color palette or color space

Extract all images on a website

Generate ASCII art from text or images

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

Generate favicons and app icons from an image

Extract color codes from an image or image URL

Decode a Base64 string into an image

Convert videos to GIF

Generate a screenshot image from a URL

Randomly divide into teams and pick organizers or representatives

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

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

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

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

Convert videos to GIF

Unlock a password-protected PDF

Add page numbers to each page of a PDF

Compress a PDF to reduce its file size

Add a text watermark to a PDF

Extract specified pages from a PDF to create a new PDF

Convert a web page into a PDF file

Protect a PDF by setting a password

Convert various files to PDF

Count characters, bytes, lines, and more

Quickly calculate a variety of expressions

Convert temperature units

Convert units of pressure

Convert various units such as length and force

Convert units of volume and capacity

Convert units of magnetomotive force, magnetic field strength, magnetic flux, and magnetic flux density

Convert area units

Trim audio files

Convert audio files

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

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

Convert an IPv4 address into IPv6 notation

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

Generate ASCII art from text or images

Create a count-up timer online

Create QR codes for a variety of purposes

Generate secure random passwords

Create a customizable countdown timer. Supports URL sharing and embedding

Generate and verify cron expressions

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.

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 color codes from an image or image URL

Extract external and internal links

Extract specified pages from a PDF to create a new PDF

Get a color code from a color palette or color space

Check the syntax of MySQL queries

Check HTML for syntax errors or formatting errors

Check the syntax of PHP code

Format and validate JSON for readability

Paste a JWT to view its contents and verify the signature

Format HTML code in your preferred style

Format and validate JSON for readability

Format XML strings

Format JavaScript and CSS source code

Format SQL statements for better readability

Create self-signed SSL certificates for free

Confirm that an SSL certificate is correctly installed on a server

Convert SSL certificates to various formats

Display the contents of a CSR (Certificate Signing Request)

Display the contents of an SSL certificate

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

Randomly divide into teams and pick organizers or representatives

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

Randomly divide into teams and pick organizers or representatives

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

Generate ASCII art from text or images

Add text to images to create memes