Format, minify, escape, and convert Unicode in JSON

Visually edit JSON data, supports code mode and tree mode with real-time sync

Quickly format and beautify HTML code

Quickly format and beautify JavaScript code, supports ES6+

Quickly format and beautify CSS code

Quickly format and beautify SQL statements

Test HTTP/HTTPS APIs online, supports GET, POST, PUT, DELETE and more

Test WebSocket connections online, view message history in real-time

Test regular expressions online with real-time match results

Calculate MD5, SHA-1, SHA-256 hashes of files, processed locally without upload

Encode/decode Base64, URL, HTML entities, and generate MD5 hashes

Compare two texts and highlight differences, supports line-by-line and character-by-character comparison

Generate and parse Cron expressions with second precision, preview next 5 execution times

Parse JWT tokens, view Header, Payload, and Signature information

Generate various Nginx configuration files online, covering basic, security, advanced, and application scenarios

Convert between Unix timestamps and human-readable dates, supports seconds and milliseconds

Convert JSON data to Excel spreadsheet files

Convert JSON format to PHP array format in real-time

Convert JSON format to TypeScript interface definitions in real-time

Convert JSON format to Go language struct definitions in real-time

Convert between JSON and XML formats, supports bidirectional conversion

Convert between JSON and YAML formats, supports bidirectional conversion

Convert between JSON and URL Query String formats with automatic encoding/decoding

Convert between Docker Run commands and Docker Compose configuration files

Convert Excel files to CSV format, supports sheet selection and custom delimiters

Convert CSV files to Excel format, supports custom delimiters and sheet names

Convert CSV or Excel files to JSON format, supports multiple sheets

Convert between images and Base64 encoding, supports upload, drag & drop, and paste

Batch convert image formats, supports JPG, PNG, BMP, GIF, WebP

Convert between HEX, RGB, HSL, CMYK and other color formats

Generate QR code images or decode QR code content, with custom size, color, and error correction

Upload and share temporary files, generate download links, up to 5 downloads

Record your screen, app windows, or browser tabs online, supports system audio and microphone

Download M3U8 videos online with multi-threaded download, visual progress, and retry on failure

Compress image size online, adjust dimensions and quality with real-time comparison

View photo EXIF metadata including camera, time, and GPS location

Add text or image watermarks with custom position, opacity, and size

Generate secure random passwords with custom length and character types, batch generation supported

Calculate the number of days between two dates, or find a date before/after a given number of days

Upload or paste an image, click to extract pixel colors in HEX, RGB, HSL and more

Full-screen scrolling LED text banner, custom speed and color, perfect for events and concerts

Simple task management tool, add, edit, and delete tasks with automatic local storage

Time management tool based on the Pomodoro Technique to help you stay focused and boost productivity

Look up IP address location, supports multiple authoritative data sources for cross-verification

Convert long URLs to short links, with QR code generation and visit statistics

Preview Markdown rendering in real-time, supports copying Markdown, HTML, and rich text

Merge multiple PDF files into one

Split PDF files into multiple documents or extract specific pages

Add text or image watermarks to PDF files

Remove specific pages from PDF files

Rotate pages in PDF files

Drag and drop to reorder PDF pages and generate a new PDF file

Compress PDF file size with multiple compression levels

Add handwritten electronic signatures to every page of PDF files, with custom position and size

Convert PDF files to image format

Merge and convert multiple images into a PDF file

Merge multiple Excel files into one, supports merging by sheets or by rows

Use AI to generate professional resumes, fill in basic info to create quickly, export to PDF and HTML

Enter work highlights, AI generates well-formatted weekly reports to boost efficiency

Enter job requirements, AI generates professional job descriptions to improve HR efficiency

Enter presentation topic, AI generates well-structured PPT outlines to quickly build presentation frameworks

Upload a photo, AI generates custom cartoon sticker packs in multiple art styles

Real-time exchange rate conversion, supports 100+ currencies

Calculate Body Mass Index (BMI) to assess weight health status

Calculate Basal Metabolic Rate (BMR) and Total Daily Energy Expenditure (TDEE) for scientific weight management

Calculate investment returns, compound growth, and regular investment yields

Calculate monthly payments, interest, and repayment schedules for mortgages, car loans, and more

Look up blood type inheritance rules, calculate possible blood types and probabilities for children

Translate between Chinese, English, and Japanese with automatic source language detection