正則可視化 - Free Online Tool | PivaBox

將正則表達式視覺化為語法圖——直觀查看模式結構

如何使用正則可視化

  1. 在輸入框中輸入正則表達式，可選附帶標誌（如 g、i、m）
  2. 點擊 視覺化 在畫布上生成鐵路語法圖
  3. 使用 適應畫布 調整縮放級別，或 下載 PNG 將圖表儲存為圖片

Frequently Asked Questions

正則可視化免費嗎？

是的，PivaBox 正則可視化完全免費使用，沒有限制。

我的正則表達式會離開裝置嗎？

不會。所有解析和渲染完全在瀏覽器中進行。你的正則表達式不會離開裝置。

支援視覺化哪些正則特性？

視覺化工具支援字面量、字元類別（<code>[a-z]</code>）、量詞（<code>* + ? min,max</code>）、分組（<code>(...)</code>）、交替（<code>|</code>）、錨點（<code>^

PivaBox - Free Online Browser Tools

265+ free online tools for image processing, PDF editing, text manipulation, developer utilities, and more. All tools run entirely in your browser — your files never leave your device. Privacy-first, zero server uploads.

Image Tools

  • Image Converter — Convert images between PNG, JPEG, WebP, and AVIF
  • Image Compressor — Compress and resize images with quality control
  • Image Crop — Crop images interactively
  • Image Filter — Apply grayscale, sepia, blur, and more
  • SVG to PNG — Convert SVG vector graphics to PNG
  • Icon Generator — Generate icons from text and emoji
  • Image to Text (OCR) — Extract text from images
  • Color Picker — Pick colors from images
  • Meme Generator — Add captions to images

PDF Tools

  • PDF Image Extractor — Extract images from PDF files
  • PDF Merger — Merge multiple PDFs into one
  • PDF Splitter — Split PDFs into separate pages
  • PDF to Text — Extract text from PDF files
  • PDF Metadata — View PDF document properties

Text Tools

  • Text Diff — Compare two texts side by side
  • Markdown Preview — Write Markdown and preview HTML
  • Case Converter — Convert text case styles
  • Word Counter — Count characters, words, sentences
  • Lorem Ipsum — Generate placeholder text
  • Text Sorter — Sort, deduplicate, reverse, shuffle

Developer Tools

  • JSON Formatter — Format, validate, minify JSON
  • Regex Tester — Test regular expressions in real-time
  • UUID Generator — Generate UUID v4 identifiers
  • Hash Generator — Compute SHA-1, SHA-256, SHA-384, SHA-512
  • JWT Decoder — Decode JWT tokens
  • YAML ↔ JSON — Convert between YAML and JSON
  • Timestamp Converter — Convert Unix timestamps to dates
  • Base64 Encoder/Decoder — Encode/decode Base64
  • URL Encoder/Decoder — Encode/decode URL strings
  • Slug Generator — Convert text to URL slugs
  • Morse Code — Convert text to/from Morse code
  • Color Converter — Convert between HEX, RGB, HSL
  • Base Converter — Convert between binary, octal, decimal, hex
  • HTML Encoder/Decoder — Encode/decode HTML entities
  • JSON ↔ CSV — Convert between JSON and CSV
  • Password Generator — Generate strong passwords
  • CSS Generator — Generate box-shadow and gradient CSS
  • Cron Parser — Parse cron expressions

Other Tools

  • QR Code — Generate and decode QR codes
  • Unit Converter — Convert length, weight, temperature, area
lt;/code>）和跳脫序列。適用於教育和簡單模式。