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.

Generate bcrypt hashes.

Minify JS code.

Instantly check if a CPF or CNPJ is mathematically valid.

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.

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.

Verify AFIP / ANSES tax identity numbers.

Format SQL queries.

Verify the mathematical checksum of a KSA Iqama.

Minify CSS code.

Convert Unix timestamps.

Generate CSS gradients visually.

RGB to HEX Converter turns red, green, and blue color values into a HEX color code, and also shows the HSL equivalent and a live color preview. Use the sliders or type exact values to find the perfect color for your website, design, or CSS. It is a fast, free tool for developers and designers that works entirely in your browser.

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.

Generate htpasswd files.

Generate color palettes.

Generate UUIDs online.

Pick colors and get HEX/RGB codes.

Generate QR codes online.

Verify the structure of a Nigerian Bank Verification Number.

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.

Format XML files online.

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