🔧 Developer Tools 21
🔐 Base64 Encode/Decode
Encode text to Base64 or decode Base64 back to text. Unicode-safe, URL-safe mode, file support.
chmod Calculator
Compute Unix file permissions: toggle read/write/execute for user, group, others. Get numeric, symbolic, and full chmod commands.
Cron Expression Explainer
Parse any cron expression into a human-readable schedule and preview upcoming run times.
Curl → Code
Convert curl commands to Python, JavaScript, and Go code.
Diff Checker
Compare two pieces of text line by line with word-level highlighting. Shows additions, deletions, and similarity.
Hash Generator
Generate SHA-1, SHA-256, SHA-384, SHA-512 hashes via Web Crypto API.
HTML Entity Encoder
Encode and decode HTML entities. Convert special characters.
HTTP Status Codes
Searchable reference for all HTTP status codes (1xx–5xx). Filter by category, copy responses, see usage examples.
JSON → TypeScript
Generate TypeScript interfaces from JSON. Paste JSON, get typed interfaces.
JSON Formatter
Format, validate, minify and escape JSON. Real-time as you type.
JWT Debugger
Decode and inspect JSON Web Tokens. View header and payload.
Markdown Preview
Live Markdown preview with GitHub-style rendering. Type on the left, see the result on the right.
Number Base Converter
Convert numbers between binary, octal, decimal, and hexadecimal. Real-time conversion.
Regex Tester
Test regular expressions with live highlighting, capture groups, replace mode, and common pattern presets.
Slug Generator
Convert titles to clean URL slugs. Unicode-aware, multi-line batch mode, custom separators.
SQL Formatter
Format and beautify SQL queries. Supports keywords, joins, subqueries.
Timestamp Converter
Convert Unix timestamps to human-readable dates and vice versa. Supports seconds and milliseconds.
URL Encoder / Decoder
Encode and decode URLs, URI components, and query strings. Supports encodeURIComponent, encodeURI, and base64.
URL Parser
Parse any URL into its components: protocol, host, path, query params, hash.
UUID Generator
Generate random UUIDs (v4) and timestamp-based UUIDs (v7).
YAML ↔ JSON
Convert between YAML and JSON formats. Real-time conversion.
🌐 Domain & Network 6
DNS Lookup
Look up DNS records: A, AAAA, MX, NS, TXT, CNAME, SOA.
Domain Brainstorm
Describe your project. Get creative domain names. Check availability instantly via DNS.
HTTP Headers Checker
View HTTP response headers for any URL.
IP Address Lookup
Geolocate IP addresses. Find country, city, ISP, and more.
SSL Certificate Checker
Check SSL certificate details for any domain.
WHOIS Checker
Check domain registration and availability via RDAP.
🔐 Security 2
✏️ Text & Data 5
Case Converter
Convert text between camelCase, PascalCase, snake_case, kebab-case, CONSTANT_CASE and more.
CSV ↔ JSON Converter
Convert CSV to JSON and JSON to CSV. Supports headers, custom delimiters, and nested objects.
Fake Data Generator
Generate realistic test data: names, emails, phones, addresses, UUIDs.
Lorem Ipsum Generator
Generate Lorem Ipsum placeholder text. Words, sentences, or paragraphs.
Word Counter
Count words, characters, sentences, reading time, keyword frequency, and readability score. Live as you type.
🎨 Design 7
Box Shadow Generator
Create beautiful CSS box shadows with a visual editor. Copy the CSS in one click.
Color Contrast Checker
Check WCAG color contrast ratios for accessibility compliance (AA, AAA).
Color Palette
Extract dominant colors from any image. Get hex, RGB, and HSL values.
CSS Flexbox Generator
Visually design flexbox layouts. Adjust direction, alignment, wrap, gap, and item count — copy the CSS in one click.
CSS Gradient Generator
Create beautiful CSS gradients with a visual editor. Linear, radial, and conic. Copy CSS in one click.
CSS Grid Generator
Visually build CSS Grid layouts. Set columns, rows, gaps, and item placement — copy production-ready CSS in one click.
Favicon Generator
Create favicons from emoji, letters, or text. Export PNG (16/32/48/64/180px) and ICO.