NIAN Tools - Free Developer Utilities

MX Lookup

Find Mail Exchange (MX) records for a domain.

AAAA Lookup

Find AAAA records (IPv6 addresses) for a domain.

A Lookup

Find A records (IPv4 addresses) for a domain.

CNAME Lookup

Find CNAME records (Canonical Names) to see alias targets for a domain.

WHOIS Lookup

Find domain registration information, registrar, and expiry dates.

SSL/TLS Checker

Verify SSL certificates, check expiration dates, and inspect security details.

TXT / SPF / DMARC Lookup

Find TXT records for a domain to verify SPF, DMARC, DKIM, and site ownership.

Ping & Port Scanner

Scan common TCP ports on a domain or IP address to verify connectivity.

HTTP Header Analyzer

Inspect the raw HTTP response headers returned by a web server.

URL Redirect Checker

Trace the path of a URL to see all redirects (301, 302) and its final destination.

Traceroute

Trace the network path to any host. See every hop, latency and location.

IP Lookup

Find geolocation and provider info for any IP address.

Chronometer

Monitor the duration of a thing. Basically a chronometer with simple chronometer features.

Temperature Converter

Degrees temperature conversions for Kelvin, Celsius, Fahrenheit, Rankine, Delisle, Newton, Réaumur, and Rømer.

Text Difference Checker

Compare two text files and spot the differences instantly. Useful for code, documents, or lists.

Text Statistics

Get detailed statistics about your text: words, characters, reading time and more.

Lorem Ipsum Generator

Generate placeholder text for your designs (paragraphs, sentences or words).

Token Generator

Generate random string with the chars you want.

Hash Text

Hash a text string using multiple algorithms simultaneously.

UUIDs generator

Generate Universally Unique Identifier (UUID) v1, v3, v4, v5.

ULID generator

Generate random Universally Unique Lexicographically Sortable Identifier (ULID).

Encrypt / decrypt text

Encrypt clear text and decrypt ciphertext using crypto algorithms like AES, TripleDES, Rabbit or RC4.

BIP39 passphrase generator

Generate a BIP39 passphrase from an existing or random mnemonic.

Hmac generator

Computes a hash-based message authentication code (HMAC) using a secret key and your favorite hashing function.

RSA key pair generator

Generate a new random RSA private and public pem certificate key pair.

Password strength analyser

Discover the strength of your password with this client-side-only analyser.

PDF signature checker

Verify the signatures of a PDF file to verify content integrity.

Date-time converter

Convert date and time into the various different formats.

Integer base converter

Convert a number between different bases (decimal, hexadecimal, binary, octal, base64, ...).

Base64 string encoder/decoder

Simply encode and decode strings into their base64 representation.

Base64 file converter

Convert a string, file, or image into its base64 representation.

Roman numeral converter

Convert Roman numerals to numbers and convert numbers to Roman numerals.

Color converter

Convert color between the different formats (hex, rgb, hsl and cmyk).

Case converter

Transform the case of a string and choose between different formats.

Text to NATO alphabet

Transform text into the NATO phonetic alphabet for oral transmission.

Text to ASCII binary

Convert text into ASCII binary code (8 bits).

Text to Unicode

Parse and convert text to unicode and vice-versa.

YAML / JSON converter

Convert YAML to JSON and JSON to YAML with this bidirectional tool.

YAML / TOML converter

Convert YAML to TOML and TOML to YAML with this bidirectional tool.

List converter

Process column-based data and apply various changes (transpose, add prefix/suffix, reverse, sort, etc).

XML / JSON converter

Convert XML to JSON and JSON to XML with this bidirectional tool.

Markdown to HTML

Convert Markdown to Html and allow to print (as PDF).

Encode/decode URL-formatted strings

Encode text to URL-encoded format (also known as "percent-encoded"), or decode from it.

Escape HTML entities

Escape or unescape HTML entities (replace characters like <, >, &, " and ' with their HTML version).

URL Parser

Parse a URL string to get all the different parts (protocol, origin, params, port, etc).

Device information

Get information about your current device (screen size, pixel-ratio, user agent, ...).

Basic auth generator

Generate a base64 basic auth header from a username and password.

Open graph meta generator

Generate open-graph and socials HTML meta tags for your website.

OTP code generator

Generate and validate time-based OTP (one time password) for multi-factor authentication.

QR Code Generator

Generate customizable QR codes for URLs, text, Wi-Fi, and more.

Kitchen Converter

Convert US volume units (cups, tbsp) to weight (grams) for baking.

MIME types

Convert MIME types to file extensions and vice-versa.

JWT parser

Parse and decode your JSON Web Token (jwt) and display its content.

Slugify string

Make a string url, filename and id safe.

HTML WYSIWYG Editor Pro

Advanced HTML editor with tables, images, links and alignment tools.

Email Template Editor

Notion-style editor for creating clean email templates with buttons and media.

User-agent parser

Parse user-agent strings to identify browser, OS, device, and engine details.

HTTP status codes

List of all HTTP status codes and their explanation.

JSON diff

Compare two JSON objects and highlight the differences (added/removed lines).

Outlook Safelink decoder

Decode Microsoft Outlook SafeLinks to reveal the original URL.

WiFi QR Code generator

Generate a QR code to connect to a WiFi network instantly.

SVG placeholder generator

Generate custom SVG placeholder images with specific dimensions and colors.

Git cheatsheet

A quick reference guide for the most common Git commands.

Crontab generator

Validate and generate crontab and get the human-readable description of the cron schedule.

Romanian - German Dictionary

Translate terms instantly between Romanian, German, and English.

JSON Prettifier & Formatter

Free online tool to validate, minify, and format JSON data. Debug your code instantly with syntax error highlighting.

JSON to CSV Converter

Convert JSON arrays to CSV format instantly. Free online tool to transform structured data into Excel-compatible spreadsheets.

SQL Prettify & Format

Format, beautify, and standardize your SQL queries online. Supports multiple dialects including MySQL, PostgreSQL, BigQuery, and SQL Server.

Chmod Calculator

Calculate Unix file permissions (777, 755) visually.

Docker run to Docker compose converter

Transforms "docker run" commands into ready-to-use docker-compose files!

XML Formatter

Prettify your XML string into a friendly, human-readable format or minify it.

YAML Prettify and Format

Prettify your YAML string into a friendly, human-readable format.

Email Normalizer

Normalize email addresses to a standard format for easier comparison. Useful for deduplication and data cleaning.

Regex Tester

Test your regular expressions in real-time with JavaScript engine.

Shared Tasks

A realtime shared to-do list for your team or family.

Morse Code Converter

Translate normal text into Morse signals (dots and dashes).

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