Popular Recommendation
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.
Morse Code Convert Online
Morse Code Convert Online supports encoding text (including Chinese) into Morse code and decoding Morse code into ordinary text. Text supports all unicdoe characters.
Text Shuffling Order Tool Online
Online text shuffle order tool, support word by word or line by line to shuffle the input text, the shuffling mode can be set to shuffle all characters or only text (do not shuffle punctuation, etc), processing results support download to the local.
Datetime Format Converter
Online date time format conversion tool that converts date time into various formats such as ISO, RFC, Unix timestamp, UTC, Excel time, etc. Supports single time conversion and batch time conversion.
Digital Binary Converter
Support float and binary / hexadecimal conversion, double and binary / hexadecimal conversion, short and binary / hexadecimal conversion, int and binary / hexadecimal conversion, long and binary / hexadecimal conversion. The byte order needs to be selected during conversion, and the default is large end order. Big end mode means that the high byte of data is saved in the low address of memory. Small end mode means that the high byte of data is saved in the high address of memory.
RSA Signature and Verification Online
Online RSA signature and verification tool, supporting signature generation and verification functions for RSA, DSA, ECDSA and other algorithms.
JSON to Java Class Converter
Online JSON strings generate Java entity classes, JSON strings generate JavaBeans,JSON strings to Java POJO.This tool support intelligent processing of keywords, special class names, naming rule checking and other features.
Private Key Encrypt and Decrypt Online
Online private key encryption and decryption, supporting encryption and decryption of private keys for RSA, DSA, and ECDSA algorithms. The input private key supports PEM and DER formats.
World Time Query
Online world time query, query the world time corresponding to the selected time, and query the time zone information around the world.
Latest Online
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.
Fetal Weight Calculator Online
Online fetal weight calculator predicts and calculates fetal weight based on parameters such as uterine height, abdominal circumference, biparietal diameter, and femur length. Support viewing the distribution of fetal weight, biparietal diameter, abdominal circumference, femur length, and other parameters at different weeks.
ABC Music Notation Editor Online
Online ABC score editor, using ABC notation method to edit scores, supports real-time preview of generated staff, and supports downloading as MIDI and WAV files.
Nano ID Generator Online
Online Nano ID generator, supports batch generation of Nano IDs, supports custom alphabet, and custom Nano ID length.
Mermaid Chart Editor Online
Online Mermaid Chart Editor, supports real-time input and preview of text generated charts in Mermaid syntax format, and supports downloading charts in SVG, PNG, JPEG, and WebP formats.
NMEA-0183 Protocol Analysis Online
Online NMEA-0183 protocol parsing tool, supports parsing dozens of messages including NMEA-0183 DTM, GBS, GGA, GLL, GNS, GRS, GSA, GST, GSV, THS, RMC, ROT, VTG, ZDA, etc., and supports NMEA-0183 checksum generation.
