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Complete Utility & PDF Toolkit Directory

Explore all 69 privacy-first utilities across PDF document processing, SQL & JSON formatting, image conversion, and developer workflows.

SQL Suite

1 utilities

JSON Suite

1 utilities

YAML Suite

1 utilities

PDF Suite

8 utilities

Text Suite

7 utilities

Developer Suite

37 utilities
Developer

Base64 Encoder / Decoder

Encode text to Base64 or decode Base64 strings back to text. Supports Unicode UTF-8 and URL-Safe modes.

Developer

UUID v4 / v7 Generator

Generate cryptographically secure UUID v4, time-sorted UUID v7, UUID v1, and deterministic UUID v5 in single or bulk batches.

Developer

Password Generator

Generate strong random passwords with custom length, character sets, and bit entropy meter.

Developer

Hash Generator

Generate MD5, SHA-1, SHA-256, and SHA-512 cryptographic hash digests from text or files.

Developer

CSV ↔ JSON

Convert between CSV and JSON formats with PapaParse engine. Auto-detection and dynamic typing.

Developer

QR Code Generator

Generate QR codes with custom colors, error correction levels. Download as PNG or SVG.

Developer

JWT Decoder

Decode and inspect JSON Web Tokens. View header, payload, signature, and expiration status.

Developer

Timestamp Converter

Convert between Unix timestamps and human-readable dates. Live clock with ISO 8601 and relative time.

Developer

URL Encoder / Decoder

Encode and decode URL strings with encodeURIComponent, encodeURI, and Base64URL modes.

Developer

Color Converter

Convert colors between HEX, RGB, and HSL formats with visual picker and quick presets.

Developer

Regex Tester

Test regular expressions with live match highlighting, match details, and preset patterns.

Developer

XML Formatter

Format, validate, and minify XML documents. Powered by xml-formatter for robust processing.

Developer

Cron Expression Generator

Build, validate, and understand cron expressions with human-readable descriptions and next runs.

Developer

cURL to Code Converter

Convert cURL commands into JavaScript (Fetch, Axios), Python (requests, httpx), Go, Rust, and PHP code.

Developer

HTML to React JSX

Transform raw HTML snippets into valid React JSX/TSX components. Auto-converts class to className and style objects.

Developer

HMAC Signature Generator

Generate and verify HMAC signatures (HMAC-SHA256, HMAC-SHA512) for Stripe, GitHub, Shopify, and Webhook verification.

Developer

IPv4 CIDR Calculator

Calculate network address, broadcast address, subnet mask, wildcard mask, and usable host range from CIDR notation.

Developer

Code Formatter

Format and beautify JavaScript, TypeScript, HTML, CSS, and Python code online with Prettier engine.

Developer

Code Minifier

Minify and compress JavaScript, HTML, and CSS code online with Terser engine. Reduce payload size by up to 70%.

Developer

Number Base & Bitwise Converter

Convert between Binary, Octal, Decimal, Hexadecimal, and ASCII text. Compute bitwise AND, OR, XOR, NOT operations.

Developer

Universal Unit Converter

Convert Length, Mass, Temperature, Digital Data Storage (Bytes to Terabytes), and Speed units online.

Developer

Color Palette Generator

Generate HSL color harmonies (Monochromatic, Analogous, Complementary) and Tailwind CSS 10-shade scale palettes online.

Developer

WCAG Contrast Checker

Calculate relative luminance and test WCAG 2.1 AA/AAA text accessibility contrast ratio compliance online.

Developer

JavaScript Minifier

Minify and compress JavaScript files online with Terser engine. Mangle variable names and drop console logs.

Developer

AI Token Counter & LLM Cost Calculator

Estimate BPE token counts and calculate API costs for OpenAI (GPT-4o), Anthropic (Claude 3.5), and Gemini 1.5.

Developer

JSON to TypeScript & Zod Schema Generator

Convert JSON objects into typed TypeScript interface definitions or Zod validation schemas instantly.

Developer

CSS & Tailwind Glassmorphism Studio

Design frosted glass UI cards with real-time sliders for backdrop blur, opacity, border, and box-shadow.

Developer

Bcrypt & Argon2 Password Hash Generator & Verifier

Generate cryptographically secure Bcrypt password hashes ($2b$) with custom cost rounds, or test password verification.

Developer

Google, Bing & Baidu SERP Simulator & Pixel Length Checker

Preview live search engine snippet appearances on Google, Bing (Copilot), and Baidu in desktop & mobile viewports.

Developer

JSON to SQL DDL & INSERT Statement Generator

Convert JSON objects or arrays into CREATE TABLE DDL schemas and INSERT INTO SQL statements for PostgreSQL, MySQL, SQLite, and SQL Server.

Developer

CSS Flexbox & Tailwind Layout Visual Builder

Interactive Flexbox & CSS Grid visual layout studio. Adjust flex-direction, justify-content, align-items, and gap sliders.

Developer

Smart String Escaper & Unescaper (JSON, HTML, JS, SQL, Unicode)

Bidirectional escaping and unescaping tool for JSON, HTML Entities, JavaScript, SQL strings, and Unicode characters.

Developer

OpenAPI to TypeScript & React Query Hooks Generator

Convert OpenAPI 3.0 & Swagger 2.0 (JSON & YAML) specifications into TypeScript interfaces, typed API clients, and TanStack React Query hooks.

Developer

Mock Data Generator

Generate realistic fake data for testing: JSON, CSV, SQL, XML with 50+ field types — names, emails, UUIDs, dates, addresses. Runs 100% in your browser via Web Worker.

Developer

REST API Tester

Send HTTP requests (GET, POST, PUT, DELETE) directly from your browser. View response body, headers, status codes, and timing. Export as cURL or Python. No install required.

Developer

.env File Editor

Visual editor for .env files — parse, validate, detect duplicate keys, mask secrets, and generate .env.example templates for Next.js, Django, Laravel, Rails, and more.

Developer

Database ER Diagram Builder

Design database schemas visually with drag-and-drop or DBML code. Export PostgreSQL, MySQL, and SQLite DDL scripts and download PNG/SVG diagrams. No account needed.

Media Suite

9 utilities

Finance & Business Suite

4 utilities

AI Tools Suite

1 utilities