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Developer Tools

25 Utilities Available

Free developer utilities — JSON formatter, regex tester, Base64 encoder, diff checker, UUID generator, cron parser.

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ZeroDayCops JSON Formatter & Validator

Validate, format, minify, and check syntax of JSON strings with highlighting.

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ZeroDayCops Base64 Encoder / Decoder

Encode text to Base64 format or decode Base64 back into readable text.

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ZeroDayCops UUID / GUID Generator

Generate cryptographically secure RFC4122 Version 4 UUIDs.

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ZeroDayCops URL Encoder

Encode text into URL-safe formats. Replaces unsafe characters with % hex representations.

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ZeroDayCops URL Decoder

Decode URL-safe percentage encoded strings back into readable text.

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ZeroDayCops Binary Text Converter

Translate normal ASCII text into binary streams or parse binary back to text.

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ZeroDayCops Hex Text Converter

Translate plain text into hexadecimal notation.

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ZeroDayCops ROT13 Obfuscation Tool

Rotate alphabets by 13 shifts to obfuscate text strings.

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ZeroDayCops XML Formatter

Prettify, validate, and format XML tags with custom indent rules.

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ZeroDayCops HTML Formatter

Prettify, indent, and format raw HTML documents.

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ZeroDayCops CSS Formatter

Format, indent, and organize CSS stylesheets.

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ZeroDayCops SQL Formatter

Pretty print and format database SQL queries.

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YAML ↔ JSON Converter

Convert YAML configurations to JSON schemas and vice versa.

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Text Diff Checker

Compare text inputs and highlight line-by-line differences.

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Cron Expression Parser

Parse and translate cron expressions to readable text.

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Timestamp Converter

Translate Unix Epoch timestamps to human dates and vice versa.

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Markdown Previewer

Write and preview markdown formatting client-side.

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HTML/CSS/JS Minifier

Compress source code sizes by stripping whitespaces and comments.

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Code Beautifier & Indenter

Beautify and indent loose scripts for cleaner code structure.

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Color Code Converter

Convert color formats between Hex, RGB, and HSL formats.

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Lorem Ipsum Generator

Generate placeholder text elements for mock layouts.

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QR Code Generator

Generate QR codes for URLs, text, or contacts client-side.

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URL Slug Generator

Translate normal text strings into URL-safe dash slugs.

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Case Style Converter

Convert text cases between UPPERCASE, lowercase, camelCase, and snake_case.

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HTTP Status Code Reference

Quick reference catalog detailing HTTP status code definitions.

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