⚡ DeftTools.io

Encode text to Base64 or decode Base64 back to text. Unicode-safe, URL-safe mode, file support. 100% client-side.

Compute Unix file permissions: toggle read/write/execute for user, group, others. Get numeric, symbolic, and full chmod commands. 100% client-side.

Parse any cron expression into a human-readable schedule and preview upcoming run times. 100% client-side.

Convert curl commands to Python, JavaScript, and Go code.

Compare two pieces of text line by line with word-level highlighting. Shows additions, deletions, and similarity. 100% client-side.

Generate SHA-1, SHA-256, SHA-384, SHA-512 hashes. 100% client-side via Web Crypto API.

Encode and decode HTML entities. Convert special characters.

Generate TypeScript interfaces from JSON. Paste JSON, get typed interfaces.

Format, validate, minify and escape JSON. Real-time as you type. 100% client-side.

Decode and inspect JSON Web Tokens. View header and payload.

Live Markdown preview with GitHub-style rendering. Type on the left, see the result on the right. 100% client-side.

Convert numbers between binary, octal, decimal, and hexadecimal. Real-time conversion.

Test regular expressions with live highlighting, capture groups, and flags. 100% client-side.

Format and beautify SQL queries. Supports keywords, joins, subqueries.

Convert Unix timestamps to human-readable dates and vice versa. Supports seconds and milliseconds. 100% client-side.

Encode and decode URLs, URI components, and query strings. Supports encodeURIComponent, encodeURI, and base64. 100% client-side.

Parse any URL into its components: protocol, host, path, query params, hash. 100% client-side.

Generate random UUIDs (v4) and timestamp-based UUIDs (v7). 100% client-side.

Convert between YAML and JSON formats. Real-time conversion.

Describe your project. Get creative domain names. Check availability instantly.

Look up DNS records: A, AAAA, MX, NS, TXT, CNAME, SOA.

View HTTP response headers for any URL.

Geolocate IP addresses. Find country, city, ISP, and more.

Check SSL certificate details for any domain.

Check domain registration and availability via RDAP.

Generate strong, cryptographically secure passwords. Customizable length and character sets. 100% client-side.

Analyze password strength in real-time. Check entropy, common patterns.

Convert text between camelCase, PascalCase, snake_case, kebab-case, CONSTANT_CASE and more. 100% client-side.

Convert CSV to JSON and JSON to CSV. Supports headers, custom delimiters, and nested objects. 100% client-side.

Generate realistic test data: names, emails, phones, addresses, UUIDs.

Generate Lorem Ipsum placeholder text. Words, sentences, or paragraphs. 100% client-side.

Count words, characters, sentences, paragraphs, reading time and more. Live as you type. 100% client-side.

Create beautiful CSS box shadows with a visual editor. Copy the CSS in one click. 100% client-side.

Check WCAG color contrast ratios for accessibility compliance (AA, AAA). 100% client-side.

Extract dominant colors from any image. Get hex, RGB, and HSL values.

Create beautiful CSS gradients with a visual editor. Linear, radial, and conic. Copy CSS in one click. 100% client-side.

Create favicons from emoji, letters, or text. Export PNG (16/32/48/64/180px) and ICO. 100% client-side.

Resize images in your browser. Supports JPG, PNG, WebP. No upload needed.

Generate QR codes for URLs, text, WiFi, and more. Customize colors and download as PNG or SVG. 100% client-side.

Convert SVG images to PNG format. Customizable output size.

Focus timer with work/break cycles, circular progress, audio alerts, and session tracking. 100% client-side.

Convert between units: length, weight, temperature, area, volume, speed, digital storage, time, energy, pressure. Real-time, 100% client-side.

Preview & generate Open Graph and Twitter Card meta tags. See how your link looks on Facebook, X, Slack, Discord. 100% client-side.