Developer Tools

Developer Tools

Browser-first utilities for debugging, encoding, generating, validating, and formatting. Built for quick work without account gates.

HAR File AnalyzerInspect HAR files for slow requests, waterfall timing, large assets, and HTTP issues.PerformanceBase64 Encoder / DecoderEncode text to Base64 or decode Base64 strings back to plain text.EncodeURL Encoder / DecoderPercent-encode special characters for safe URLs, or decode them back.URLJSON Formatter & ValidatorBeautify, minify, and validate JSON with live error feedback.JSONUUID GeneratorGenerate cryptographically secure UUID v4 or time-ordered UUID v7 identifiers.IDsRegex TesterTest regular expressions with live matches, capture groups, and replace mode.RegexPassword GeneratorGenerate secure passwords with configurable length and character sets.SecurityJWT DecoderDecode JSON Web Token headers and payloads locally in your browser.TokensUnix Timestamp ConverterConvert epoch timestamps into local, UTC, and ISO dates.TimeURL ParserBreak URLs into protocol, host, path, hash, and query parameters.ParseJSON CSV ConverterConvert JSON arrays to CSV and CSV tables back to JSON.DataHash GeneratorGenerate SHA hashes from text using the browser Crypto API.CryptoCSS JS Minifier and BeautifierMinify or format CSS and JavaScript snippets quickly.Code

Local-first helpers

Most utilities run directly in the browser, which keeps snippets, tokens, and test data on your device.

Daily workflow tools

Format data, test URLs, decode tokens, generate IDs, and inspect network traces from one focused toolbox.

No setup step

Open a tool, paste the input, and copy the result. The interface is tuned for quick repeat use.