Daten bleiben auf dem Gerät

Text-, China- und Entwickler-Tools im Browser.

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Text

Bereinigen, sortieren, ersetzen

Remove Blank Lines
Delete extra blank lines; optionally keep one blank line between paragraphs.
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Remove Duplicate Lines
Deduplicate lines while keeping first-seen order.
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Word Counter
Count characters, Chinese chars, English words, lines and reading time.
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Sort Lines
Sort lines A–Z or Z–A, with optional unique and trim.
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Find & Replace
Find and replace text locally, with optional regex.
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Clean Whitespace
Trim, collapse spaces and tidy whitespace.
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Case Converter
UPPER, lower, Title, camelCase, snake_case and more.
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Punctuation Convert
Convert between Chinese and English punctuation.
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Add Line Numbers
Prefix each line with sequential numbers.
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Text Diff
Compare two texts and highlight differences.
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Chinesisch

Kurz-/Langzeichen, Pinyin

Simplified ↔ Traditional Chinese
Convert between Simplified and Traditional Chinese (OpenCC).
Chinesisch
Fullwidth ↔ Halfwidth
Convert fullwidth and halfwidth characters.
Chinesisch
Text Wrap / Unwrap
Wrap text to a width or join wrapped lines.
Chinesisch
Punctuation Tidy
Normalize Chinese punctuation and spacing.
Chinesisch
Chinese Number Convert
Convert between Arabic and Chinese numerals.
Chinesisch
Hanzi to Pinyin
Convert Chinese characters to pinyin with tone marks.
Chinesisch
Chinese Text Clean
Clean messy Chinese text formatting.
Chinesisch
Unicode Escape
Encode/decode Unicode escapes (\uXXXX).
Chinesisch
Vertical Text
Arrange text vertically for display.
Chinesisch

Entwickler

JSON, Encoding

JSON Formatter
Beautify, minify and validate JSON in your browser.
Entwickler
YAML Format & Convert
Format, minify and validate YAML, or convert YAML ↔ JSON locally.
Entwickler
SQL Formatter
Beautify or minify SQL locally for MySQL, PostgreSQL, SQLite and more.
Entwickler
Slug Generator
Turn titles into URL slugs; Chinese can use pinyin or keep characters.
Entwickler
Password Generator
在浏览器本地用 Web Crypto 生成高强度随机密码，可排除易混字符并批量输出。不上传、免注册，适合临时需要强密码时使用。
Entwickler
JSON Diff
在浏览器本地对比两个 JSON 的键级差异：新增、删除与修改。区别于文本 Diff，适合配置与 API 响应核对，数据不上传。
Entwickler
XML Toolkit
在浏览器本地格式化、压缩或校验 XML，并与 JSON 互转。使用 DOMParser，数据不上传，免费免注册。
Entwickler
TOML Toolkit
在浏览器本地格式化 TOML 或与 JSON 互转。轻量子集解析、不上传配置，适合 Cargo 与常见应用配置。
Entwickler
CSV Toolkit
在浏览器本地格式化、校验 CSV，或与 JSON 互转。PapaParse 本地解析，处理引号与换行，数据不上传。
Entwickler
Timezone Converter
在浏览器本地把同一时刻换算到不同时区，基于 Intl，不访问网络。支持 ISO 输入与 Unix 时间戳对照。
Entwickler
Date Calculator
在浏览器本地做日期加减或计算两日相差天数。免注册、不上传，适合排期与简单期限估算。
Entwickler
HTML/CSS/JS Minify
在浏览器本地轻量压缩 HTML、CSS、JS，查看体积节省。不上传源码；复杂项目请再用专业构建工具确认。
Entwickler
AES / HMAC Box
在浏览器用 Web Crypto 做 AES-GCM 加解密与 HMAC-SHA256。口令经 PBKDF2 派生，数据不上传，适合本地小密文处理。
Entwickler
Bcrypt Hash
在浏览器本地生成或校验 bcrypt 哈希。使用自托管 bcryptjs，不上传明文；适合学习与离线比对，非生产唯一方案。
Entwickler
Hex / Binary / Base32
在浏览器本地互转文本与 Hex、Binary、Base32。UTF-8 处理、不上传，适合调试与编码对照。
Entwickler
Gzip Compress
在支持 CompressionStream 的浏览器里本地 Gzip 压缩或解压文本，结果以 Base64 展示，数据不上传。
Entwickler
CSS Generators
在浏览器本地生成 CSS box-shadow、线性渐变、圆角与 Flex 代码。免注册、即时预览参数，适合快速拼样式。
Entwickler
robots.txt Generator
在浏览器本地生成 robots.txt：Allow/Disallow、Sitemap 与可选 AI 爬虫示例规则。不探测站点、不上传，复制即用。
Entwickler
CORS Headers Generator
在浏览器本地生成 CORS 响应头模板（原始 / Nginx / Cloudflare 注释）。不探测接口、不上传，避免 * 与 Credentials 冲突。
Entwickler
HTML Entities
Encode and decode HTML entities.
Entwickler
URL Encode / Decode
Percent-encode or decode URL components.
Entwickler
Base64 Encode / Decode
Encode or decode Base64 text locally.
Entwickler
CSV ↔ JSON
Convert between CSV tables and JSON.
Entwickler
Unix Timestamp
Convert between Unix time and readable dates.
Entwickler
Random String
Generate random hex or alphanumeric strings.
Entwickler
Markdown ↔ HTML
Convert Markdown to HTML and back.
Entwickler
Regex Tester
Test regular expressions with live matches.
Entwickler
Color Converter
Convert between HEX, RGB and HSL.
Entwickler
UUID Generator
Generate UUID v4 identifiers in bulk.
Entwickler
Hash Generator
MD5, SHA-1, SHA-256 and more — computed locally.
Entwickler
JWT Decoder
Decode JWTs locally without uploading tokens.
Entwickler
Cron Explainer
Explain five-field cron expressions.
Entwickler
JSONPath Tester
Query JSON with JSONPath entirely in your browser.
Entwickler
JSON Schema Infer & Validate
Infer a simple schema or validate JSON locally (Draft-07 subset).
Entwickler
HTML/CSS/JS Formatter
Beautify HTML, CSS and JavaScript with self-hosted Prettier.
Entwickler
RSA Key Pair Generator
Generate RSA-OAEP/PSS key pairs as PEM via Web Crypto.
Entwickler
TOTP Generator
Generate and verify RFC 6238 TOTP codes locally with otpauth URI.
Entwickler
htpasswd Generator
Create Apache htpasswd lines with bcrypt or apr1-md5 locally.
Entwickler
Cron Expression Builder
Build cron expressions visually with explain and next run times.
Entwickler
chmod Calculator
Convert between symbolic, octal and rwx Unix permissions.
Entwickler
CSP Header Generator
Build Content-Security-Policy header templates locally.
Entwickler
llms.txt Generator
Generate llms.txt / llms-full.txt from site fields locally.
Entwickler
JSON-LD Schema Markup
Generate FAQPage, Organization, WebApplication and HowTo JSON-LD.
Entwickler
Color Contrast Checker
WCAG contrast checks plus simple palette shades from a base hex.
Entwickler
JSON to TypeScript / Go Types
Infer TypeScript interfaces, Go structs, or Zod schemas from sample JSON locally.
Entwickler
Mermaid Diagram Editor
Edit Mermaid source and preview SVG locally with a self-hosted Mermaid build.
Entwickler

Dateien

Bilder, QR, Einheiten

Image Compressor
Compress images in the browser before download.
Dateien
QR Code Generator
Generate QR codes from text or URLs.
Dateien
HTML Cleaner
Strip or simplify HTML markup.
Dateien
Image ↔ Base64
Convert images to Base64 data URLs and back.
Dateien
Unit Converter
Convert length, weight, temperature and more.
Dateien

So funktioniert’s

Alles läuft im Browser. Kein Upload, kein Konto. Safari und Chrome.