所有在线工具

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.

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.

Generate bcrypt hashes.

Encode HTML entities.

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.

Instantly check if a CPF or CNPJ is mathematically valid.

Minify CSS code.

Generate CSS gradients visually.

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.

Format XML files online.

Verify AFIP / ANSES tax identity numbers.

Minify JS code.

Generate UUIDs online.

Generate your Italian tax code based on personal details.

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.

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.

Preview markdown online.

Verify the Verhoeff checksum of a 12-digit Aadhaar UID.

Verify the mathematical checksum of a KSA Iqama.

Generate htpasswd files.

Validate SA ID numbers and extract Date of Birth & Gender.

Generate QR codes online.