UTF8 File BOM Detector

Quickly detect if a UTF8 file contains a BOM mark and provide a one-click removal function to optimize file encoding.

File MD5 Batch Modifier

Batch modify file MD5 hash values, generate new MD5 checksums, and solve duplicate file verification issues.

Batch File MD5 Verification

Online batch verification of file MD5 values, quickly verifying file integrity and consistency.

Batch File Encoding Detection

Batch detect file encoding format online, quickly identify text encoding types, solve garbled characters, and improve processing efficiency.

Serpent Encryption and Decryption

Serpent encryption and decryption online tool, supporting Serpent algorithm data encryption and decryption, ensuring information security and privacy.

BlowFish Encryption and Decryption

Online encryption and decryption tool, providing efficient symmetric algorithms to protect data security and privacy. Supports multiple encoding formats.

TripleDES Encryption and Decryption

TripleDES encryption and decryption tool, providing data security protection, supporting multiple modes and padding schemes, efficient and convenient.

Rabbit Encryption and Decryption

Rabbit Encryption and Decryption

RC4 Encryption and Decryption

RC4 online encryption and decryption tool, providing fast and easy-to-use encryption and decryption services for the RC4 symmetric stream cipher.

Random UserAgent Batch Generator

Online batch generation of random User-Agent strings to simulate different browsers and effectively circumvent anti-crawler detection.

Batch Random MAC Address Generator

Batch random MAC address generator, used for network testing, device simulation, privacy anonymity, and other scenarios.

Bulk Random IP Generator

Efficient online IP generator, bulk create random IPv4/IPv6 addresses, customize quantity and range, suitable for network testing, data filling.

Bulk Random Mobile Number Generator

Online bulk random mobile number generator, customize number segments and quantity, quickly generate test data, protect user privacy.

Bulk Random Email Generator

Bulk generate random email addresses, supporting custom domains and prefixes, suitable for software testing, website registration, and personal privacy protection.

Bulk Detection of Empty/Invalid Mobile Numbers

Bulk detect empty, suspended, and active mobile numbers, efficiently filter valid numbers, and assist in precise marketing.

Batch Verification of Mobile Number and Name (Two Elements)

Batch verify whether mobile numbers and names are genuinely consistent, quickly authenticate user identity information, support enterprise-level data verification, efficiently prevent fraud risks, and ensure information security and compliance.

Batch Verification of Enterprise Business Four Elements

Batch verification of enterprise business four elements, efficiently verifying enterprise identity and compliance, and improving data authenticity.

Batch Verification of Enterprise Business Two Elements

Efficiently batch verify enterprise business two elements, quickly confirm the authenticity of enterprise names and unified social credit codes, and avoid operational risks.

Age Difference Calculator

Online age difference calculator, quickly calculate the time interval between two people or two dates, accurate to year, month, and day, with convenient operation.

Children's Day Countdown

Children's Day countdown tool, real-time display of days, hours, minutes, and seconds until June 1st Children's Day, celebrating the holiday.

Thanksgiving Countdown

Real-time accurate Thanksgiving countdown, easily plan holiday arrangements.

Halloween Countdown

Halloween countdown tool, accurately calculates how many days are left until Halloween, helping you plan holiday activities and parties in advance.

Father's Day Countdown

Father's Day countdown tool, accurately calculates remaining time, don't miss any warm and grateful moment.

Mother's Day Countdown

Accurate Mother's Day countdown tool, real-time display of remaining days until Mother's Day, warm reminder, helping you express gratitude.

April Fools' Day Countdown

Accurately calculates the remaining time until April Fools' Day on April 1st each year, with a real-time countdown to help you plan your day of joyful pranks in advance.

Apollo 11 Mission Countdown

Apollo 11 moon landing mission countdown, real-time tracking of historical events, important moment reminders.

Countdown to the Founding of the United Nations

Accurately calculates the remaining time until the anniversary of the United Nations' founding, providing a real-time countdown to reflect on history and look forward to important moments.

Litigation Fee Calculator

Online litigation fee calculator, accurately calculates various case acceptance fees, property and non-property dispute fees, quickly estimates litigation costs, helping you clearly understand litigation fees

House Deed Tax Calculator

Calculate house deed tax, stamp duty, maintenance fund, and other home purchase taxes and fees online to help you clearly understand home purchase costs.

After-tax Salary Calculator

Reverse calculate pre-tax salary and individual income tax, based on after-tax salary and social security contributions, helping you understand your salary composition clearly.

Five Insurances and One Housing Fund Calculator

Quickly calculate individual and company contributions for five insurances and one housing fund, social security, and provident fund, helping you understand your salary composition.

Car Loan Calculator

Online car loan calculator, quickly calculate car loan amount, monthly payment, total interest, and repayment plan to help you easily plan your car purchase budget.

Bank Card Four-Element Batch Query

Batch query bank card four elements online, verify identity information and reserved mobile number.

Batch Query of Corporate Account Affiliation

Batch query the opening bank affiliation (province and city) of corporate bank accounts to improve financial risk control efficiency.

Bank Card Two-Factor Batch Verification

Batch verification of bank card name and card number two-factor consistency, supporting fast real-name authentication and ensuring transaction security.

Bank Card Three-Element Batch Verification

Bank card name, card number, ID card number three-element batch verification, quickly verify identity, prevent fraud.

TDEE Daily Total Energy Expenditure Calculator

Accurately calculate your Total Daily Energy Expenditure (TDEE) to help you scientifically plan your calorie intake and achieve health goals such as fat loss, muscle gain, or weight maintenance.

Ovulation Calculator

Online ovulation calculator, accurately predicts women's fertile window, aids scientific conception planning and understanding of the menstrual cycle.

Fetal Gestational Age Comparison Chart

Quickly determine fetal gestational age using ultrasound measurements such as crown-rump length (CRL) and head circumference (HC), covering early to late pregnancy, to help you understand fetal development.

Fetal Gestational Age Calculator

Fetal Gestational Age Calculator: Accurately calculate fetal gestational age based on ultrasound data (e.g., Crown-Rump Length, Biparietal Diameter, Head Circumference, Femur Length) to help you understand pregnancy weeks and estimate your due date.

Fetal Weight Gestational Age Reference Table

NICHD Asian singleton fetal gestational age weight reference table, helping you quickly assess fetal development.

Fetal Growth Parameters Reference Chart

Provides reference values for fetal biparietal diameter, head circumference, abdominal circumference, femur length, and other biological parameters for each gestational week, assisting in the assessment of fetal growth and development.

Water Intake Calculator

Quickly calculate the recommended daily water intake based on weight, scientifically hydrate, and help you stay healthy.

Maximum Heart Rate MHR Calculator

Estimate Maximum Heart Rate MHR based on age, helping you exercise scientifically and manage your health.

Waist-to-Hip Ratio WHR Calculator

Calculate WHR online, assess central obesity risk, and monitor physical health.

Ping Test

Ping test tool, quickly detects network connectivity, latency, and packet loss rate, easily diagnoses network faults.

CIDR Subnet Calculator

CIDR subnet calculator, quickly get IP address subnet mask, network address, broadcast address, and available host range to facilitate efficient network planning.

Port Detection

Online port detection tool, quickly scans IP or domain port open status, a powerful tool for network troubleshooting and security verification.

License Plate Extractor

Online license plate extraction tool, AI technology accurately identifies license plate numbers from images, provides license plate region of origin information, fast and efficient.

Date Extractor

Intelligent date extractor, quickly identifies and parses various date and time information in text online, efficient and convenient.

Bank Card Extractor

Bank card BIN query and verification, identify issuing bank, country/region, card organization, and card type in advance.

URL Extractor

Online URL extractor, quickly parses and extracts all valid URL links from any text.

Batch IP Address Location Query

Accurate batch query of IP geographic location and network information, supporting multi-dimensional data analysis

Global Public DNS Resolution IP Database

Global public DNS resolution IP address database, query common public DNS servers in various countries, optimize network connection and resolution speed.

Perfect Cube Expansion Calculator

Online perfect cube expansion calculator, quickly find the algebraic expansion of (a+b)³ and (a-b)³, master cube formulas.

Perfect Square Expansion Calculator

Quickly expand perfect square expressions online, simplifying (a±b)² algebraic calculations and learning.

Sum of Cubes Formula Calculator

Calculate the sum of cubes of numbers online, quickly solving problems involving the sum of cubes of integers, natural numbers, and consecutive numbers.

Cube Difference Formula Calculator

Online cube difference formula calculator, quickly finds the value of a³-b³, supports integer and decimal operations, simplifies algebraic calculations.

Difference of Squares Formula Calculator

Online difference of squares formula calculator, quickly calculates (a+b)(a-b) expressions, simplifies algebraic operations.

Nth Power Calculator

Online Nth power calculator, quickly calculates the Nth power of any number, supports large numbers and floating-point numbers, convenient and efficient.

Cube Calculator

Online cube calculator, quickly calculates the cube (third power) of any number, convenient and efficient, aiding mathematical and engineering calculations.

Square Calculator

Online square calculator, quickly calculates the square of integers and decimals, simple and efficient.

Nth Root Calculator

Online Nth root calculator, accurately calculates the Nth root of any number, efficient root extraction tool, supports integer and fractional powers.

JSON Compression

Online JSON compression tool, efficiently streamlines JSON data, reduces file size, and improves transmission and storage efficiency.

JSON to Typescript Zod Class

Efficiently convert JSON data structures into TypeScript Zod type validation schemas, simplifying front-end development and enhancing data security and code quality.

JSON to Typescript Effect Schema Class

JSON online to Typescript Effect Schema class definition, quickly generate efficient data validation.

JSON to Smithy Class

Online JSON to Smithy class tool, quickly convert JSON data structures into Smithy model definitions, simplifying API design.

JSON to SCALA3 Class

Online conversion of JSON data structures to Scala 3 case classes, quickly generating data model code to improve development efficiency.

JSON to PIKE Class

JSON to PIKE class converter, efficiently generates PIKE language class definition code from JSON data structures online, simplifying data model construction.

JSON to JSON Schema Class

Online JSON to JSON Schema tool, automatically generates data structure definitions, simplifies data validation and standardization.

JSON to Javascript PropTypes Class

JSON data structure to JavaScript PropTypes class, automatically generates React property validation code, improving front-end development efficiency.

JSON to FLOW Class

JSON data to FLOW class, automatically generate data model code, simplify development.

Remove PDF Password

Online tool to remove PDF open passwords, easily unlock encrypted documents, and protect private data.

MARKDOWN to PDF

Professional Markdown to PDF tool, quickly converts MD files into high-quality PDF documents.

HTML to PDF

Quickly convert HTML files to PDF format online, simple and easy to use.

Image to PDF

Online image to PDF tool, supports batch conversion of multiple images, various layouts and color modes, easily create PDF documents.

PDF to PPT

Online PDF to PPT tool, supports converting PDF to PPTX, PPT, and ODP formats, helping you easily convert files.

PDF to XML

Online PDF to XML tool, quickly converts PDF document content to XML format for easy data extraction and structuring.

PDF to Word

Quickly convert PDF documents to editable Word files (DocX, Doc, Odt) online, convenient and efficient.

PDF to HTML

Online PDF to HTML tool, accurately converts PDF documents to HTML web page format with one click.

PDF to Markdown

Online PDF to Markdown tool, quickly and accurately extracts PDF content into Markdown format.

Batch QR Code Parser

Online batch parsing of multiple QR codes in images, efficiently identifying and extracting text, links, and other information to improve data processing efficiency.

Chinese National Standard Paper to PX Conversion

National standard paper size to PX pixel online tool, quickly calculate pixel values for A4, A3 and other paper sizes at a specified DPI.

Business Card Size to PX Converter

Quickly convert business card dimensions to pixels (PX), online tool supports DPI settings, accurately calculates business card width and height in pixels.

Photo Size to PX Converter

Photo size to pixel tool, online conversion of physical dimensions to pixel resolution.

Print Paper RA/SRA to PX Conversion

Accurately converts RA/SRA standard print paper dimensions (millimeters) to pixel values (PX), adapting to digital design and print output, supporting custom DPI. It is an ideal online tool for design typesetting and print presets.

Japanese JIS Paper to PX Converter

Japanese JIS paper size to PX tool, accurately converts standard paper to pixel values at a specified DPI.

Barcode Batch Generator

Generate barcodes in batches online, supporting multiple types, quickly create and download for easy printing and use.

Barcode Generator

Online barcode generator, supports multiple encoding formats, quickly generates high-definition barcode images for easy printing and recognition.

QR Code Batch Generator

Free online QR code generator, quickly converts text, URLs, business cards and other content into high-quality QR codes, supports customization, convenient for scanning and sharing.

Breath Counter

Online breath counter, accurately counts breathing rate and times, conveniently monitors health status, assists with exercise and meditation training.

Random Ukrainian Address Generator

Free random generation of realistic Ukrainian addresses, including street, city, postal code, etc., for data testing, simulation, and privacy protection.

Random Czech Address Generator

Online random generation of virtual Czech addresses, providing detailed information such as street, city, and postal code, suitable for testing and privacy protection.

Random Danish Address Generator

Generate random Danish addresses online, with a realistic format, for development testing, data filling, and privacy protection.

Random Finnish Address Generator

Randomly generate realistic Finnish addresses, including street, city, postal code, etc., to meet needs such as test data and privacy protection.

Random Norwegian Address Generator

Online random generation of Norwegian-formatted address information, including street, postal code, city, etc., for development testing, data filling, or privacy protection.

Random Swedish Address Generator

Generate realistic random Swedish addresses online, supporting custom quantities, usable for testing, privacy protection, and data simulation needs, fast and convenient.

Random Vietnamese Address Generator

A professional random Vietnamese address generator, providing realistic and reliable virtual addresses for software development, data testing, and privacy protection.

Random Thai Address Generator

Randomly generate detailed Thai addresses for testing, data filling, and privacy protection.