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JSON Formatter beautifies messy JSON with proper indentation and validates it so you can spot errors instantly. Paste minified JSON to make it readable, or check that an API response is well-formed. It runs entirely in your browser.
Regex Tester lets you build and debug regular expressions with live match highlighting. Enter a pattern and test string to see exactly what matches as you type. Perfect for developers fine-tuning validation and search patterns. It runs in your browser.
Generate bcrypt hashes.
Generate your Italian tax code based on personal details.
Base64 Encoder converts text to Base64 and decodes Base64 back to plain text. Useful for embedding data, debugging APIs, and handling encoded strings. Encoding and decoding happen instantly in your browser with no data sent anywhere.
Format SQL queries.
Format XML files online.
Minify CSS code.
Generate CSS gradients visually.
Generate htpasswd files.
Verify the Verhoeff checksum of a 12-digit Aadhaar UID.
Test your internet connection speed directly in the browser. Measure download speed, upload speed, latency (ping), and jitter with animated gauges. Works on mobile and desktop — no app required.
Check the Digito Verificador of a Chilean ID.
URL Encoder converts text into a safe, URL-encoded format and decodes encoded URLs back to readable text. Handle special characters in links, query parameters, and API requests correctly. It runs instantly in your browser.
Convert Unix timestamps.
Encode HTML entities.
Verify the mathematical checksum of a KSA Iqama.
Validate SA ID numbers and extract Date of Birth & Gender.
Verify AFIP / ANSES tax identity numbers.
HTML Formatter cleans up and indents messy HTML so it is easy to read and maintain. Paste minified or tangled markup and get neatly structured code back. It runs entirely in your browser, so your code stays private.
CSV to JSON Converter turns CSV data (with a header row) into a clean JSON array of objects, automatically converting numbers and handling quoted fields. Copy the JSON or download it for use in APIs, apps, and config files. It is a fast, private developer tool that runs entirely in your browser with no uploads.
Minify JS code.
Preview markdown online.
Generate UUIDs online.