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Random Number Generator Online
The online random number generator supports the generation of random integer values and random floating-point values. When unique is specified, all generated random numbers are not repeated.
Stopwatch Online
Online stopwatch timer supports online stopwatch timing, millisecond time, pause, mark and download functions.
Unit Converter Online
Unit converter online supports the conversion of multiple units such as length, weight, area, volume data.
Countdown Timer Online
Countdown timer online supports online countdown. After the countdown, you can set the sound of playing alarm.
Shelf Life Calculator Online
Shelf-life calculator online, input the production date, shelf-life duration, calculate the expiration time of the shelf-life of commodities, food, drugs and other items, and whether it expires.
Lottery Draw Turntable Online
Online lottery draw turntable tool, supporting setting lottery options, option weights, then random select lottery option. The lottery results can be downloaded locally.
Fuel Consumption Calculator Online
The online fuel consumption calculator provides functions such as fuel consumption calculation per hundred kilometers, fuel consumption calculation per unit mileage, and cost calculation per unit mileage.
Sudoku Generator Online
Online Sudoku generator, generates Sudoku tables online, supports selecting multiple difficulty modes, and can complete Sudoku games online or print locally.
Height Weight Chart Calculator
The online height and weight calculator calculates the corresponding healthy weight range, lean weight range, and obese weight range based on the entered height.
Generate Character Relationship Graph Online
Online generation of character relationship graph tool, input a list of character names and relationships between characters, and dynamically generate a network structure diagram of character relationships. This tool supports the use of random character avatars or uploading custom avatars, and the generated relationship diagrams can be downloaded locally.
RC5 Encryption and Decryption Online
The online RC5 encryption and decryption tool provides online RC5 encryption and decryption test. The encryption and decryption supports five encryption modes: CBC, CFB, OFB, CTR and ECB, and the input and output supports three formats: hex, string and base64.
Keyboard Event Information Online
Online keyboard key information tool, displaying key, code, keycode, location, modifiers and other key information of keyboard key events in web pages, and providing a key information query comparison table.
Latest Online
RTCM3 Data Parsing Online
The online RTCM3 data parsing tool supports the parsing of RTCM3 data from navigation systems such as GPS, Beidou, GLONASS, and Galileo. It can parse RTCM3 basic messages, ephemeris messages, and MSM messages, and allows for the downloading and parsing of results.
Trigonometric Function Calculator Online
Online trigonometric function calculator, supporting trigonometric and inverse trigonometric function calculations. Angle units support degrees and radians, and support setting result accuracy.
JSON to Markdown Table Converter Online
Online JSON to Markdown table tool, supporting the mutual conversion between JSON and Markdown tables. It supports expanding nested objects and arrays of JSON data, and supports escaping special characters in Markdown.
CIDR Aggregate Online
Online CIDR aggregation calculator, supporting the aggregation of multiple IPs or multiple sub-CIDRs into one CIDR, and supporting both IPv4 and IPv6.
JSON Key Rename Online
Online JSON key renaming tool, supports renaming keys of input JSON data, supports lowerCamelCase,UpperCamelCase,lowercase,UPPERCASE,lower_snake_case,UPPER_SNAKE_CASE,kebab-case, There are various renaming methods such as custom renaming rules. Support adding prefixes or suffixes to keys and setting rules for handling key name conflicts.
Number Sort Online
Online number sorting tool that supports sorting a large number of input numbers and supports multiple ways of inputting or extracting numbers. Supports sorting very large integers and very large floating-point numbers.
ChaCha20 Encrypt and Decrypt Online
Online ChaCha20 Encryption and Decryption Tool, supporting ChaCha20, XChaCha20, ChaCha20-Poly1305, and XChaCha20-Poly1305 algorithms for encryption and decryption, with input data formats including string, hex, and base64, and the ability to select from multiple character sets.
Information Entropy Calculator Online
The online information entropy (Shannon entropy) calculator supports calculating the entropy of binary data, text data, and probability distributions, and supports setting the logarithmic base to 2, e, and 10. Support setting result precision.
Protocol Buffers Encode and Decode Online
Online Protocol Buffer Encoding and Decoding Tool, supporting online decoding of protocol buffer data and online encoding of protocol buffer data. Supports opening multiple proto definition files and decoding and encoding multiple messages.
Geohash Encode Decode Online
Online Geohash encoding and decoding tool, supports Geohash encoding and decoding of latitude and longitude positions, supports querying all coordinate points within a specified radius of the center point, and supports querying the closest coordinate point to the center point.
BaseN Encode and Decode Online
Online BaseN encoding and decoding tool, supporting BaseN encoding and decoding of data such as string, hex, base64, files, etc., supporting algorithms such as base2, base8, base16, base32, base64, base58, base85, base91, base100, etc. This tool also supports custom algorithms.
MessagePack and JSON Converter Online
Online Message Pack and JSON conversion tool, supporting the conversion between binary data in Message Pack format and data in JSON text format. Message Pack data supports input formats such as hex, base64, byte arrays, etc.
