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Online Developer Tools

JSON formatting, Base64 conversion, password generation, text counting, color conversion — all processed in your browser.
Nothing is sent to any server.

🔥 Popular Tools

4 essential tools used by most developers

🧰 More Tools

Additional useful tools for daily work

Text Counter

Count characters, words, lines, and bytes in real time.

Docs

Color Converter

Convert between HEX, RGB, HSL color codes with live preview.

Design

Timestamp Converter

Convert Unix timestamps to human-readable dates and times.

Dev

HTML Encoder/Decoder

Escape special characters to HTML entities or revert them.

Dev

QR Code Generator

Turn URLs or text into scannable QR code images instantly.

Utility

Text Case Converter

Convert text to UPPER CASE, lower case, Capital Case, snake_case, camelCase and more.

Docs

UUID Generator

Generate multiple UUID v4 (GUID) identifiers at once.

Dev

Hash Generator

Generate MD5, SHA-1, and SHA-256 hashes in real time.

Security

JWT Decoder

Decode JWT token header, payload, and signature to inspect claims.

Security

Regex Tester

Test regex patterns in real time with match highlighting and replacement.

Dev

CSV ↔ JSON Converter

Convert CSV data to JSON array and JSON to CSV freely.

Dev

CSS Formatter

Prettify CSS code or minify it to reduce file size.

Design

Markdown Previewer

Render Markdown syntax to HTML in real time with live preview.

Writing

PX ↔ REM/EM Converter

Convert px to rem/em with adjustable base font size.

Design

Image to Base64

Encode image files to Base64 string via drag & drop or file picker.

Utility

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