Developer & Data
Format, convert, encode and inspect data locally in your browser.
JSON Formatter & Validator
Validate JSON, pinpoint syntax errors and format it with readable indentation.
Open tool →JSON Minifier
Remove unnecessary JSON whitespace after validating the document.
Open tool →Base64 Encoder & Decoder
Encode Unicode text to Base64 or decode Base64 safely in the browser.
Open tool →URL Encoder & Decoder
Encode text for a URL component or decode percent-encoded content.
Open tool →HTML Entity Encoder & Decoder
Escape HTML-sensitive characters or decode named and numeric entities.
Open tool →Secure Hash Generator
Create SHA-256, SHA-384 or SHA-512 digests locally with Web Crypto.
Open tool →UUID Generator
Generate standards-based UUID v4 identifiers using browser cryptography.
Open tool →Unix Timestamp Converter
Convert Unix seconds or milliseconds to ISO time and back with clear UTC values.
Open tool →Regular Expression Tester
Test a JavaScript regular expression and inspect bounded matches without sending text away.
Open tool →CSV ↔ JSON Converter
Convert simple RFC-style CSV rows to JSON or JSON arrays back to CSV.
Open tool →XML Formatter & Validator
validate XML syntax and turn compact markup into a readable document with consistent indentation.
Open tool →XML Minifier
remove insignificant whitespace between XML elements after confirming that the document is valid.
Open tool →HTML Formatter
make pasted HTML easier to inspect by placing nested tags on readable indented lines.
Open tool →CSS Formatter
expand compact CSS rules into readable blocks for review, debugging and hand editing.
Open tool →CSS Minifier
remove comments and unnecessary CSS whitespace for a smaller production snippet.
Open tool →Number Base Converter
convert integers between binary, octal, decimal and hexadecimal notation without rounding.
Open tool →JWT Payload Decoder
inspect the header and payload of a JSON Web Token without uploading it or claiming to verify its signature.
Open tool →Query String Parser & Builder
inspect URL query parameters as JSON or build an encoded query string from key-value rows.
Open tool →Unicode Code Point Inspector
reveal the code point, UTF-16 unit and visible label of every character in a string.
Open tool →HTTP Status Code Lookup
look up the meaning and response class of common HTTP status codes while debugging web requests.
Open tool →Markdown to HTML Converter
convert a safe Markdown subset into escaped semantic HTML with headings, lists, links and code blocks.
Open tool →List to Array Converter
turn delimited text into escaped arrays for JSON, JavaScript, Python, SQL, PHP, Ruby, Rust, Go, Java or C#.
Open tool →Cron Expression Explainer
validate a standard five-field cron expression and explain its minute, hour, day, month and weekday schedule.
Open tool →HTML Minifier
remove comments and safe inter-tag whitespace from pasted HTML without executing the document.
Open tool →No matching tools on this page.