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100% Client-Side Sandboxed Security

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Format data, encode text, generate codes, compress images, create passwords, and convert files — all running directly in your browser. No data leaves your device, no account needed, works offline.

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JSON FormatterText Diff CheckerBase64 Text EncoderBase64 UTF-8 DecoderRFC 3986-Style URI Component EncoderHTML Formatter with Preview
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Focused subcategories surface the right tools without forcing you through the entire catalog.

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JSON Processing

Free JSON minifier, key sorter, and dot-path flattener for compacting and restructuring data.

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Try itJSON MinifierMinify JSON to compact format instantly. Remove whitespace and reduce file size — no upload needed.
Try itJSON SorterSort JSON keys alphabetically with recursive support. Client-side processing — no upload needed.
Try itJSON FlattenerFlatten nested JSON to dot notation instantly. Client-side processing — no upload needed.
Try itJSON UnflattenerUnflatten dot-notation JSON to nested structure instantly. Client-side — no upload needed.

JSON Converters

Free converters from JSON to CSV, XML, and YAML with configurable array and nesting options.

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Try itJSON to CSVConvert JSON arrays to CSV instantly. Client-side conversion with header support — no upload needed.
Try itJSON to XMLTransform JSON to XML with one click. Client-side conversion — no upload needed.
Try itJSON to YAMLConvert JSON to YAML format instantly. Client-side processing — no upload needed.

Regex, URL & Email Validators

Free regex tester with match highlighting, plus URL and email validators with detailed results.

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Try itRegex TesterTest JavaScript regex patterns with real-time match highlighting, capture groups, and flag toggling. Built-in cheat sheet reference.
Try itURL ValidatorValidate URL format instantly with protocol, domain, and path checks. Client-side — no upload needed.
Try itEmail ValidatorValidate email addresses instantly with syntax check and format verification. Client-side — no upload.

Image Compressor & PDF Creator

Free image compressor for PNG, JPEG, and WebP plus PDF creator with page size and layout options.

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Try itImage to PDF and Image Extension ConverterConvert images to PDF instantly. JPG, PNG, WebP support — client-side, no upload.
Try itImage Compressor and Dimension ResizerCompress images to WebP/JPEG/PNG instantly. Reduce file size 50-80% — client-side, no upload.

Hash & HMAC Generators

Free hash generator for MD5, SHA-1, SHA-256, SHA-384, and SHA-512 using the browser Web Crypto API.

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Try itHash GeneratorGenerate MD5, SHA-1, SHA-256, and SHA-512 hashes from text using Web Crypto API. Hardware-accelerated, client-side.
Try itJWT DecoderDecode JWT tokens instantly. View header, payload, and signature — client-side, no upload.

Case Converter & Line Sorter

Free case converter with six case styles and text line sorter with configurable ordering and deduplication.

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Try itText Case ConverterConvert text case instantly — UPPERCASE, lowercase, camelCase, snake_case. Client-side, no upload.
Try itText SorterSort text lines alphabetically or numerically with duplicate removal. Client-side — no upload.

Recommended Multi-Step Pipelines

API Payload Review

Turn a captured JSON response into a readable document, then compare it with a known reference payload.

JSON FormatterText Diff Checker
Local Web Asset Preparation

Compress browser-ready images, assemble approved visuals into a PDF, and translate colors into implementation values.

Image Compressor and Dimension ResizerImage to PDF and Image Extension ConverterHEX, RGB and HSL Color Converter

Private by architecture

Your files and input stay in browser memory. Tools run locally without upload APIs or private processing servers.