58 available tools
Web Development Tools
Free utilities to build, test, format, and optimize HTML, CSS, JavaScript, and web data directly in your browser.
Available tools
JWT Decoder
Decode a JWT header and payload locally without claiming its signature is valid.
Query String to JSON
Convert URL parameters to JSON without losing repeated values or Unicode.
JSON to Query String
Convert a flat JSON object to URL parameters with repeated array values.
URL Parser
Split a URL into protocol, host, port, path, parameters, and fragment.
Hash Generator
Generate SHA-256, SHA-384, or SHA-512 text hashes with Web Crypto.
File Checksum
Calculate a file SHA checksum locally without uploading it to a server.
JSON to TypeScript Interface
Infer valid TypeScript interfaces from JSON objects and arrays.
JSON to TypeScript Type
Generate TypeScript type aliases from JSON with reusable nested types.
HTTP Status Codes
Look up standard HTTP status codes by number, name, or family.
MIME Types
Look up common MIME types by extension, media type, or format.
XML to JSON
Convert XML to a clear JSON representation with attributes and repeated elements.
JSON to XML
Convert JSON objects and arrays to XML with a configurable root and compatible attributes.
YAML to JSON
Convert safe YAML to formatted JSON directly in your browser.
JSON to YAML
Convert valid JSON to readable YAML with two- or four-space indentation.
CSV to TSV
Convert quoted CSV to TSV without breaking embedded commas or line breaks.
TSV to CSV
Convert tab-separated data to CSV and protect values that spreadsheets may treat as formulas.
XML Formatter
Format XML with configurable indentation and structural validation.
XML Minifier
Remove structural XML whitespace without joining meaningful text.
XML Validator Online
Check whether XML is well formed and find syntax errors with line and column details when available. Runs locally; it does not validate XSD or DTD.
JSON Validator
Validate JSON quickly and inspect its root type, size, and approximate error position.
CSV to JSON
Convert robust comma-, semicolon-, or tab-delimited CSV into formatted JSON.
JSON to CSV
Convert JSON object arrays to CSV with configurable delimiter, flattening, and formula protection.
HTML Link Extractor
Extract href, link text, and link type from HTML without executing it.
HTML Text Extractor
Turn pasted HTML into readable text without executing scripts or styles.
Showing 1–24 of 58 tools
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Open any of the remaining available tools directly.
- HEX Color Extractor
- URL Tracking Parameter Remover
- JSON Escape / Unescape
- JSON Sort Keys
- JSON Flatten / Unflatten
- Unicode Inspector
- Text to Unicode Escape Converter
- Text to Binary Converter
- Text to Hex Converter
- UUID Validator & Inspector
- Email Syntax Validator
- CSS Gradient Generator
- CSS Border Radius Generator
- Flexbox Playground
- CSS Grid Playground
- HEX RGB HSL Converter
- Online Color Picker
- HTML Formatter
- Base64 Encoder and Decoder
- URL Encoder and Decoder
- UUID Generator
- Online HTML CSS JavaScript Editor
- JSON Formatter and Validator
- CSS Minifier
- JavaScript Minifier
- CSS Box Shadow Generator
- Regex Tester
- Unix Timestamp Converter
- Meta Tag Generator
- Open Graph Preview
- Markdown to HTML Converter
- HTML Entities Encoder and Decoder
- robots.txt Generator
- XML Sitemap Generator
Utilities for code and web data
Formatters and minifiers serve different purposes: formatters make code easier to read and review, while minifiers remove unnecessary characters before publishing. You can also validate JSON, test regular expressions, and transform data with Base64 or URL encoding.
Playgrounds help check HTML, CSS, and JavaScript in isolation. Color and CSS tools generate practical values, although final results should still be tested in the browsers your project supports.
Technical SEO tools for developers
Meta tag, Open Graph, robots.txt, and sitemap.xml generators help prepare markup and files, but every result should be reviewed against the real structure and rules of the site before publishing.
When a tool states that processing is local, content is transformed in your browser and is not sent to Utilsha. Code previews remain isolated in a restricted iframe.