Developer Tools

Developer tools for JSON processing, encoding conversion, code formatting, UUID generation, timestamp conversion, network testing, and SSL checks. Useful for API debugging, frontend and backend development, server administration, data processing, and software testing.

All Categories

JSON Tools
JSON online tools for formatting, minifying, validating, escaping, converting, and processing structured data. Quickly organize and check JSON for API debugging, frontend and backend development, data exchange, and everyday development tasks.
9 tools
Encoding Conversion
Online encoding and decoding tools supporting common formats such as Base64, URL, HTML, Unicode, and Hex. Easily encode and decode text, parameters, API data, and network content for development, debugging, and data processing.
3 tools
Code Formatter & Converter
Online code formatting and conversion tools for HTML, CSS, JavaScript, XML, JSON, and other common code or structured data formats. Format, beautify, and compress code to improve readability, debugging, and maintenance.
13 tools
Password & Hash
Online password and hash tools supporting MD5, SHA-1, SHA-256, SHA-512, SHA-3, HMAC, bcrypt, and Argon2 for data integrity checks, password security testing, and development.
8 tools
Regex Tools
Free online regular expression tools for regex testing, text matching, content extraction, replacement, and rule validation. Quickly write, debug, and verify regular expressions for JavaScript, PHP, Python, and other development scenarios.
3 tools
Unique Identifier Tools
Unique identifier tools for generating, parsing, and validating UUID, GUID, ULID, Nano ID, Snowflake ID, MongoDB ObjectId, and other common identifiers for databases, APIs, and distributed systems.
6 tools
Time Tools
Online time tools for current time, Unix timestamp conversion, date and time conversion, time differences, countdowns, age calculation, and time zones. Useful for development, API debugging, log processing, office work, and everyday date calculations.
7 tools
Network Tools
Network tools for IP lookup, TCP port checking, HTTP status checks, Ping testing, Whois, DNS, and reverse IP lookup. Useful for developers and system administrators to monitor websites, diagnose networks, check servers, and troubleshoot issues.
13 tools
SSL Tools
SSL tools for certificate checking, expiration lookup, HTTPS and TLS testing, certificate parsing, CSR generation, and PEM, DER, and PFX certificate format handling.
8 tools
Other Tools
Other useful tools from NZ Tools, including APK analysis and independent or cross-category online utilities. Use them directly in your browser without registration for temporary tasks and specific small-scale data processing needs.
2 tools
Encryption & Decryption
Online encryption and decryption tools supporting common algorithms such as AES, RSA, DES, 3DES, ChaCha20, and ECC. Useful for encryption, decryption, algorithm testing, and development debugging. Do not use real sensitive data for online testing.
8 tools

Popular Developer Tools

IP Reverse Lookup

Free online IP reverse lookup tool that uses reverse DNS (PTR) records to find domains associated with an IP address.......

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IP Address Lookup

Free online IP address lookup tool that automatically detects your current public IP and lets you look up IPv4 and IP......

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APK Analyzer

Online APK analysis tool that quickly parses APK files in the browser and displays application information, Android p......

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UUID Generator

Free online UUID generator supporting v1, v3, v4, v5 and v7. Generate UUIDs in batches, format, parse and validate th......

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Countdown Calculator

Online countdown calculator that shows the remaining days, hours, minutes, and seconds until a target date and time. ......

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Current Time

Free online current time tool showing the current date, time, weekday, Unix timestamps in seconds and milliseconds, U......

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Snowflake ID Generator

Free online Snowflake ID generator for creating distributed unique IDs. Supports batch generation, Worker ID, Process......

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Developer Tools

This section brings together common online tools for programmers and web developers, covering JSON processing, encoding conversion, code formatting, unique identifiers, time tools, network diagnostics, SSL, and password-related development tasks.

What categories are included?

  • JSON tools: Format, minify, parse, and validate JSON.
  • Encoding tools: Convert Base64, URL, Unicode, and other encodings.
  • Code tools: Format HTML, CSS, JavaScript, and other supported code.
  • ID tools: Generate UUID, ULID, Nano ID, Snowflake, and other identifiers.
  • Time tools: Convert timestamps, dates, time differences, and time zones.
  • Network tools: Check IP, ports, HTTP, DNS, Ping, and Whois information.
  • SSL tools: Check HTTPS, certificates, and TLS-related configurations.

When are developer tools useful?

Developer tools are useful for API debugging, frontend development, backend development, server operations, data processing, software testing, and technical learning. For temporary tasks, many conversions and checks can be completed directly in a browser.