✍️ TextWonder 📄 PDFWonder 📁 DocWonder 🖼️ ImageWonder 🛠️ DevWonder 🎓 StudentWonder 🧮 CalcWonder 🩺 HealthWonder 🎨 ColorWonder 💾 DataWonder 📐 UnitWonder
100% browser-based — your data never leaves your device

Dev tools for your everyday workflow

Free, instant developer utilities. Format JSON, decode JWTs, test regex, generate hashes, convert colors — all in your browser.

17 dev tools 100% browser-based 0 signups required
{ }

JSON Formatter

Beautify, minify, and validate JSON instantly.

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🔐

JWT Decoder

Decode and inspect JWT tokens without a secret key.

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.*

Regex Tester

Test and debug regular expressions with live match highlighting.

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🕐

Unix Timestamp Converter

Convert between Unix timestamps and human-readable dates.

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#️⃣

Hash Generator

Generate SHA-256, SHA-512, and SHA-1 hashes from any text.

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🆔

UUID Generator

Generate random UUID v4 values instantly.

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🎨

Color Converter

Convert colors between HEX, RGB, and HSL formats.

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0x1

Number Base Converter

Convert numbers between decimal, binary, hex, and octal.

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⏱️

Cron Expression Parser

Decode cron job expressions into plain English schedules.

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🔗

URL Parser

Break down any URL into its components and query parameters.

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</>

HTML Formatter

Beautify and format HTML markup with proper indentation.

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MD

Markdown Previewer

Write Markdown and preview the rendered HTML in real time.

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🔊

Text to Speech

Convert text to voice using your browser — choose voice, rate, and pitch.

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🔑

Password Generator

Generate strong, random passwords with custom rules.

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▦

QR Code Generator

Generate QR codes for URLs, text, and contact info instantly.

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B64

Base64 Encoder / Decoder

Encode text to Base64 or decode Base64 strings instantly.

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<p>

Text to HTML Converter

Wrap plain text paragraphs in HTML tags instantly.

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🛡️

Your data stays in your browser

All tools run entirely in your browser using native Web APIs and open-source libraries. No tokens, no hashes, no source code is ever transmitted to any server.

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