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.
Countdown Timer Online
Countdown timer online supports online countdown. After the countdown, you can set the sound of playing alarm.
Unit Converter Online
Unit converter online supports the conversion of multiple units such as length, weight, area, volume data.
Caesar Cipher Encode and Decode Online
Online Caesar cipher encryption and decryption tool, supporting Caesar cipher encryption for text and decryption of Caesar ciphertext. The characters that support encryption include English lowercase letters, English uppercase letters, and Chinese characters.
Barcode Generator Online
Barcode Generator Online, which supports online barcode generation. This tool supports the generation of bar codes in CODE128, EAN13, CODE39, ITF, MSI and other formats
JSON Format/JSON Parse Online
JSON Format/JSON Parse Online tool support online verification of JSON data format, formatting JSON data display, parsing JSON data, compressing JSON data and escaping JSON data. JSON data source supports inputting strings, opening local files and opening URLs.
Generate Cartoon Avatars Online
Online cartoon avatar generation tool, supporting random generation of cartoon avatars, supporting the generation of cartoon avatars with specified parameters such as accessories, hair, clothing, facial expressions, eyebrows, mouth, skin color, etc. The generated cartoon supports downloading as png and svg files.
JS Beautify and Minify
JS beautify tools and minify tools online provide one click JS beautification function and one click JS minimization function.
Text Add Line Number Online
Add line numbers to multi line text online. You can customize the format of adding line numbers, whether they are aligned, and appear at the beginning or end of the line.
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.
Random Color Generator Online
Online random color generator, supporting the random generation of colors in all formats such as RGB, RGBA, HSL, HSV, CMYK, YUV, hex, etc. The generated colors support preview and download.
Latest Online
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.
SM2 Signature and Verification Online
Online SM2 signature and verification tool, supporting signature generation and verification functions for SM2 algorithms.
SM2 Encryption and Decryption Online
Online SM2 encryption and decryption tool, supporting public key encryption and private key decryption of the SM2 algorithm. Supports input of public and private keys in PEM and HEX formats, and supports input data and output results in string, hex, and base64 formats.
String Escape Online
Online string escaping tool, supporting escaping rules for languages such as JSON, Java, JavaScript, XML, HTML, CSV, etc., and supporting custom rule string escaping. This tool also supports unescape of strings.
SM4 Encryption and Decryption Online
The online SM4 encryption and decryption tool provides online SM4 encryption and decryption test. The encryption and decryption supports six modes: CBC, CFB, OFB, CTR, GCM and ECB, and the input and output supports three formats: hex, string and Base64.
