Developer Tools

Browser-only utilities for JSON, code formatting, encoding, text, regex, security, colors, network, dates, generators, and SVG workflows.

Browse Developer

• JSON Formatter — Pretty-print JSON with indentation and validation.
• JSON Validator — Validate JSON and show clear parse errors.
• JSON Viewer — Inspect JSON as a readable tree-style outline.
• JSON Minifier — Remove whitespace from JSON safely.
• JSON to CSV — Convert arrays of JSON objects into CSV.
• JSON to XML — Convert JSON objects into simple XML.
• JSON Escape / Unescape — Escape text for JSON strings or unescape JSON string values.
• HTML Formatter — Format HTML syntax locally without executing it.
• CSS Formatter — Format CSS syntax locally without executing it.
• JavaScript Formatter — Format JavaScript syntax locally without executing it.
• SQL Formatter — Format common SQL syntax locally without executing or validating a database dialect.
• XML Formatter — Format XML syntax locally without executing it.
• YAML Formatter — Format YAML syntax locally without executing it.
• Base64 Encode/Decode — Encode and decode Base64 text.
• Base64 Image Encoder — Upload an image and convert it to a data URI.
• URL Encode/Decode — Encode and decode URL-safe strings.
• HTML Encode/Decode — Convert HTML-sensitive characters to entities and back.
• Unicode Converter — Convert text to Unicode escape sequences and back.
• Hex Converter — Convert text to hexadecimal and decode hex back to text.
• Binary Converter — Convert text to binary and binary back to text.
• Case Converter — Generate upper, lower, title, camel, pascal, snake and kebab case.
• Word Counter — Count words and estimate reading time.
• Character Counter — Count characters with and without spaces.
• Line Counter — Count total, empty, and non-empty lines.
• Remove Duplicate Lines — Remove repeated lines while preserving order.
• Sort Lines — Sort lines alphabetically.
• Reverse Text — Reverse characters and line order.
• Slug Generator — Create SEO-friendly URL slugs.
• Lorem Ipsum Generator — Generate placeholder copy instantly.
• Diff Checker — Compare two text blocks line by line.
• Regex Tester — Test regular expressions against sample text with a browser timeout.
• Password Generator — Generate passwords locally with unbiased Web Crypto sampling.
• UUID Generator — Generate browser-native UUID v4 values.
• Hash Generator — Generate SHA-1, SHA-256 and SHA-512 digests in the browser using Web Crypto.
• BCrypt Generator — Explain browser bcrypt limitations and avoid fake password hashes.
• JWT Decoder — Decode JWT header and payload locally without verification.
• Color Picker — Pick a color and copy HEX/RGB/HSL values.
• Color Converter — Convert HEX colors to RGB and HSL.
• Color Palette Generator — Generate tints and shades from a base color.
• CSS Gradient Generator — Build copy-ready CSS gradients.
• Box Shadow Generator — Generate premium CSS box shadows.
• IP Lookup — Parse IP address type and local metadata without external APIs.
• CIDR Calculator — Calculate network range, mask, and usable hosts.
• DNS Lookup Helper — Validate a hostname and build a DNS-over-HTTPS query URL without sending it.
• User Agent Parser — Parse browser, OS, and device hints from a user agent.
• HTTP Header Parser — Parse raw HTTP headers into key-value pairs.
• Unix Timestamp Converter — Convert explicitly selected Unix seconds, milliseconds, or date text.
• Time Zone Converter — Compare a time across common global time zones.
• Cron Expression Builder — Describe and build common cron expressions.
• QR Code Generator — Generate standards-compliant QR codes as PNG or SVG.
• Barcode Generator — Generate validated CODE128, EAN-13, and UPC-A barcodes as PNG or SVG.
• Fake User Generator — Generate realistic test user data.
• Random String Generator — Generate secure random strings.
• Random Number Generator — Generate random numbers and ranges.
• CSS Minifier — Minify CSS in the browser.
• HTML Minifier — Minify HTML in the browser.
• JavaScript Minifier — Minify JavaScript in the browser.
• SVG Optimizer — Remove comments and extra whitespace from SVG.
• SVG Viewer — Preview raw SVG markup safely.
• SVG to PNG — Preview SVG and download a browser-rendered PNG.
• Image to Base64 — Convert uploaded images to Base64 data URIs.
• Favicon Generator — Generate a simple SVG favicon from initials and colors.