IPv4 subnet calculator, IP address converter (decimal/binary/hex), IP range expander, and IPv6 ULA generator. All in one networking tool.
NATO phonetic alphabet converter, ASCII binary converter, Unicode code point viewer, Roman numeral converter, and string obfuscator with leet speak, ROT13, Base64, and shuffle.
Network tools (port number lookup with 25+ services, user-agent parser, query string parser), formatters (SSE event formatter, rate limit header parser, pricing tier builder), crypto/security (TOTP generator with SHA-1, SSH key generator RSA/ECDSA/Ed25519), and time tools (timestamp to date, time zone converter with 14 zones, world clock).
Encoders (Base32, Base64→JSON, Hex, SVG→Base64), text tools (character encoding, Unicode converter, Markdown→Slack, PX↔REM), HMAC generator (SHA-1/256/384/512), SVG optimizer, and unit converters (speed, power, pressure). (Base64 encode/decode has its own dedicated page.)
Hex to RGB Converter parses hex color codes and outputs the corresponding RGB and RGBA values.
Convert decimal numbers to binary and binary back to decimal. Essential for understanding how computers store data.
Network Toolkit lets you iPv4 subnet calculator, IP address converter (decimal/binary/hex), IP range expander, and IPv6 ULA generator. All in one networking tool.. Everything runs inside your browser — nothing is uploaded to a server. It works on any device with a modern web browser.
IPv4 subnet calculator, IP address converter (decimal/binary/hex), IP range expander, and IPv6 ULA generator. All in one networking tool. It's ideal for developers, designers, and anyone who needs to ipv4 subnet calculator, ip address converter (decimal/binary/hex), ip range expander, and ipv6 ula generator without installing software or sending data to external servers.
Direct text entry, file upload, or URL-based input — depending on the tool. Common file formats are supported for upload-based tools.
Yes. After the initial page load, Network Toolkit runs entirely on your device with no internet connection needed. All processing is done locally.
Tools cover JavaScript, CSS, HTML, SQL, Python, JSON, XML, CSV, and more. Check individual tool descriptions for specifics.
No. All code processing — formatting, minification, conversion, hashing — runs locally in your browser.
Yes. Since processing is local, performance depends on your device. Most operations handle large files without issue.
Yes. SQL uses sql-formatter, JSON uses native JSON.parse, and other formatters follow widely adopted formatting rules.
Yes. All developer tools work fully offline after the initial page load.
Time Converter
Convert between time units including seconds, minutes, hours, days, weeks, months, and years with precise decimal results.
Diff Checker
Compares two input texts side-by-side, highlighting inserted, deleted, and changed lines with distinct background colors.
Regex Tester
Provides an interactive environment where users can write a regular expression pattern, test it against sample strings, and view real-time match.
JSON Formatter
Pretty-prints raw JSON with configurable indent width, key sorting, and bracket collapsing options while flagging syntax errors with exact.
JS Minifier
Strips comments, whitespace, and shortens local variable names in JavaScript source without altering execution semantics.
Base64 Encode/Decode
Encodes text or small files into Base64 strings and decodes them back with automatic MIME-type detection for binary safety.