Free Online Tools

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JSON to CSV Converter

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Convert JSON data to CSV format. Supports arrays of objects with automatic header detection. Handles nested objects and arrays

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PDF Redactor

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Permanently redact (black out) sensitive text in PDF files. Uses pdf-lib to create a new PDF with redacted content - not just visual overlays

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URL Encoder & Decoder

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Encode URLs to percent-encoded format or decode percent-encoded URLs. Fixes messy URLs with special characters

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Word & Character Counter

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Count words, characters, sentences, paragraphs, and estimate reading time. Perfect for writers, bloggers, and content creators

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Regex Tester

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Test regular expressions against text. See matches highlighted in real-time with detailed match information

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Lorem Ipsum Generator

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Generate placeholder text in Lorem Ipsum format. Perfect for design mockups, testing layouts, and content placeholders

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JWT Debugger

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Decode and inspect JSON Web Tokens (JWT). View header and payload without needing the secret key

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Base64 Encoder & Decoder

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Encode text or decode base64 strings. Supports text encoding/decoding with UTF-8 support

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Secure Password Generator

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Generate strong, secure passwords with customizable length and character sets

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File Encryptor & Decryptor

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Encrypt and decrypt files securely in your browser using AES-GCM. Your files never leave your device - perfect for private document protection

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SQL Formatter

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Beautify and format SQL queries. Makes unreadable SQL code clean and properly indented

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Mortgage Calculator

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Estimate monthly mortgage payments (principal & interest) and add optional property tax, homeowners insurance, HOA fees, and extra payments.

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Case Converter

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Convert text between different case formats: UPPERCASE, lowercase, Title Case, camelCase, snake_case, kebab-case, and more

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SSH Key Generator

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Generate secure SSH public/private key pairs in your browser. Keys are generated using Web Crypto API and never leave your device

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Markdown to HTML Converter

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Convert Markdown text to HTML with live preview. Supports headers, lists, links, code blocks, and more

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Chmod Calculator

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Calculate Linux/Unix file permissions. Visual calculator for read, write, and execute permissions (777, 644, etc.)

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Document Scanner & OCR

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Extract text from images using Optical Character Recognition. Converts scanned documents, photos, and images to searchable text. Uses Tesseract.js for browser-based OCR

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Remove Duplicate Lines

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Remove duplicate lines from text while preserving order. Perfect for cleaning up lists, data, and text files

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JSON Formatter & Validator

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Format and validate JSON data with syntax highlighting and error detection

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CSV to JSON Converter

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Convert CSV files to JSON format. Handles large files efficiently with streaming support. Perfect for data processing and API integration

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