All Developer Tools
Useful browser-based utilities for developers, including JSON, encoding, validation and code-related tools. Open a tool, enter your data and get the result without unnecessary signup.
All Developer Tools
Choose a utility below and start immediately.
JSON Formatter + Validator
Format JSON with readable indentation and validate its syntax.
JSON Minifier
Minify valid JSON by removing unnecessary whitespace.
Base64 Encoder/Decoder
Encode text as Base64 or decode Base64 back to readable text.
URL Encoder/Decoder
Encode or decode URL components safely.
QR Code Generator
Generate a downloadable QR code from text, URLs or other short data.
Password Generator
Generate a strong random password with configurable length and character sets.
UUID Generator
Generate one or more random UUID v4 identifiers.
Unix Timestamp Converter
Convert dates to Unix timestamps and timestamps back to readable dates.
HEX/RGB/HSL Color Converter
Convert HEX and RGB colors and view the equivalent HSL value.
CSS Gradient Generator
Build a two-color CSS linear gradient and copy the CSS code.
Password Strength Checker
Check password strength locally using length, variety and pattern analysis.
File Hash Generator
Generate SHA-256, SHA-384 or SHA-512 checksums for a local file.
Regex Tester
Test JavaScript regular expressions with flags, matches and capture groups.
CSV to JSON Converter
Convert CSV to formatted JSON with quoted-field and delimiter support.
JSON to CSV Converter
Convert an array of JSON objects to standards-friendly CSV.
XML Formatter & Validator
Format, validate or minify well-formed XML without executing it.
SQL Formatter
Format or compact common SQL syntax without executing queries.
Markdown Previewer
Write Markdown and preview common formatting in a safe responsive layout.
UTM Builder
Build a properly encoded campaign URL with standard UTM parameters.
YAML ↔ JSON Converter
Convert YAML to JSON or JSON to YAML with safe parsing and clear errors.
HTML Formatter & Minifier
Beautify or compact HTML without executing it.
CSS Formatter & Minifier
Format CSS or create a compact minified version.
JavaScript Formatter & Minifier
Format JavaScript and minify it without executing user code.
JWT Decoder
Decode JWT header and payload locally without claiming signature verification.
JSON ↔ XML Converter
Convert flat and nested JSON to XML or XML to JSON.
Developer Tools
Useful browser-based utilities for developers, including JSON, encoding, validation and code-related tools. NexterHub keeps these utilities in one consistent responsive interface with clear validation and useful internal links.