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Developer Toolbox

A high-performance collection of 55 utilities that run entirely in your browser. No server calls. No data collection. Just instant results.

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An interactive and searchable ASCII table with decimal, hex, octal, binary, and HTML entity representations.

Generate various barcode formats (Code128, EAN-13, UPC, etc.) with customizable dimensions, colors, and human-readable text labels.

Encode text to Base64 or decode Base64 strings back to plain text instantly in your browser.

Generate secure Bcrypt hashes for passwords and verify plain-text passwords against existing hashes.

An interactive calculator to generate and understand Linux file permissions (chmod) in numeric and symbolic formats.

Convert colors between HEX, RGB, HSL, and CMYK formats with a live visual preview and contrast checker.

Easily create complex crontab schedules using an interactive UI. Generate valid CRON expressions for your automated tasks and scripts.

Visually design complex, organic CSS shapes using advanced border-radius properties.

Visually design complex CSS box shadows and drop shadows with a live preview and instant code generation.

Visually build complex CSS Flexbox and Grid layouts and instantly copy the generated code.

A visual tool to create beautiful, cross-browser CSS linear and radial gradients with interactive controls and real-time preview.

Convert tabular CSV or Excel data directly into clean, semantic HTML <table> markup.