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Developer Tools
Fast utilities that keep your input in this browser.
Tools in this category
Browser-only
URL and HTML Encoder
Encode or decode URLs and HTML entities entirely in your browser.
Browser-onlyUUID Generator
Generate cryptographically random UUID v4 values locally.
Browser-onlyHash Generator
Generate SHA-256, SHA-384, SHA-512, or SHA-1 digests locally.
Browser-onlyJWT Decoder
Inspect JWT headers and payloads locally without validating or uploading tokens.
Browser-onlyRegular Expression Tester
Test JavaScript regular expressions and review matches instantly.
Browser-onlyMarkdown to HTML Converter
Convert Markdown text into clean HTML entirely in your browser.
Browser-onlyJSON to CSV Converter
Convert a JSON array of objects into CSV, with nested fields flattened.
Browser-onlyCSV to JSON Converter
Parse CSV text and convert it to a JSON array of objects.