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FreeConvertingTools
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Developer Tools

JSON formatters, regex testers, code minifiers, and dev utilities

JSON Formatter / Beautifier

Format, beautify, and validate JSON data. Tree view, syntax highlighting, and error detection.

FreeAPI

JSON Validator

Validate JSON syntax and structure. Clear error messages with line numbers.

FreeAPI

JSON Minifier

Minify JSON by removing all whitespace. Reduce file size for production use.

FreeAPI

UUID Generator

Generate random UUIDs (v4) and other UUID versions. Batch generate and copy.

FreeAPI

Regex Tester

Test regular expressions with real-time matching, group highlighting, and pattern explanation.

FreeAPI

JWT Decoder

Decode and inspect JSON Web Tokens. View header, payload, and verify signatures.

FreeAPI

CSS Minifier

Minify CSS code to reduce file size. Removes comments, whitespace, and shortens properties.

FreeAPI

HTML Formatter

Format and beautify HTML code. Proper indentation, tag alignment, and syntax highlighting.

FreeAPI

SQL Formatter

Format SQL queries with proper indentation and syntax highlighting. Supports multiple SQL dialects.

FreeAPI

Base64 Encode/Decode

Encode text to Base64 or decode Base64 back to text. Supports file encoding too.

FreeAPI

URL Encode/Decode

Encode special characters for URLs or decode percent-encoded strings.

FreeAPI

Unix Timestamp Converter

Convert Unix timestamps to human-readable dates and vice versa. Multiple timezone support.

FreeAPI

Cron Expression Explainer

Parse and explain cron expressions in plain English. Next run time preview.

FreeAPI

JavaScript Minifier

Minify JavaScript code to reduce file size for production deployment.

FreeAPI

HTML Entity Encoder

Encode special characters as HTML entities or decode entities back to characters.

FreeAPI

Markdown to HTML

Convert Markdown text to HTML with syntax highlighting and live preview.

FreeAPI

Code Diff Tool

Compare two code snippets side by side with syntax-aware diff highlighting.

FreeAPI

JSON to TypeScript Interface Generator

Generate TypeScript interfaces from JSON data automatically. Handles nested objects and arrays.

FreeAPI

JSON Path Finder

Click any value in JSON to see its full path. Query JSON with JSONPath expressions.

FreeAPI

CSS Gradient Generator

Create CSS gradients visually. Linear, radial, and conic with multi-stop color support.

FreeAPI

SVG Optimizer

Optimize and minify SVG files. Remove metadata, simplify paths, reduce file size.

FreeAPI

.htaccess Generator

Generate .htaccess rules for redirects, rewrites, security headers, and caching.

FreeAPI

Robots.txt Generator

Create robots.txt files for search engine crawlers. Set rules per user agent.

FreeAPI

Sitemap XML Generator

Generate XML sitemaps for your website. Add URLs with priority and change frequency.

FreeAPI