Developer Tools

Developer utilities for formatting, validating, and converting common technical data — focused on practical day-to-day tasks.

Tools in this category

Live
Base64 Encoder / Decoder

Encode or decode text to and from base64, with a URL-safe variant.

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Text Diff Checker

Compare two blocks of text and see added and removed lines side by side.

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Sort & Deduplicate Lines

Sort lines alphabetically, numerically, or by length, and remove duplicates.

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Whitespace & Line-break Cleaner

Collapse extra spaces, trim lines, and remove blank lines or line breaks.

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Case Converter

Convert text between camelCase, snake_case, kebab-case, Title Case, and more.

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HTML Entity Encoder / Decoder

Encode text to HTML entities or decode entities back to text.

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Lorem Ipsum Generator

Generate placeholder lorem ipsum text by paragraphs, sentences, or words.

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Number Base Converter

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

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JSON ↔ CSV Converter

Convert JSON arrays to CSV and CSV back to JSON, in your browser.

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Regex Tester

Test a regular expression against text and see matches and capture groups.

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Color Converter & Contrast Checker

Convert colors between HEX, RGB, and HSL, and check WCAG contrast.

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Cron Expression Explainer

Translate a cron expression into plain English and a field-by-field breakdown.

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