About Fixit

Fixit is a collection of free, easy-to-use web tools designed to help developers, students, and professionals with their daily text processing and data conversion needs. Our mission is to provide useful utilities that are fast, reliable, and respect your privacy.

Our Mission

We believe that essential web tools should be:

Free: No registration, no subscription fees, completely free to use
Private: No personal information stored - your data stays private with enterprise-grade security
Fast: Optimized for speed and efficiency with server-side processing
Simple: Clean, intuitive interfaces that anyone can use
Reliable: Available whenever you need them

Our Tools

JSON Parser

JavaScript JSON.parse() + Custom Validator

Implements recursive JSON validation with syntax tree parsing, error line detection, and pretty-printing with configurable indentation.

Base64 Encoder/Decoder

Native Web APIs + Binary Processing

Uses btoa/atob functions with ArrayBuffer for handling binary data, supporting UTF-8 encoding and large file processing.

Color Tools

HSL/RGB/HEX Algorithms

Advanced color space conversion algorithms, palette generation using color theory, and accessibility contrast calculations.

Markdown Editor

Real-time Parsing Engine

Custom markdown parser with live AST generation, syntax highlighting via Prism.js, and HTML sanitization.

Regex Tester

JavaScript RegExp Engine

Real-time pattern compilation with match highlighting, capture group extraction, and performance optimization for large texts.

Hash Generator

Web Crypto API + Custom Algorithms

Implements SHA-256, MD5, SHA-1 using SubtleCrypto for security, with streaming support for large file hashing.

Case Converter

String Manipulation Algorithms

Unicode-aware case conversion with support for camelCase, snake_case, kebab-case, and locale-specific transformations.

URL Encoder/Decoder

RFC 3986 Implementation

Standards-compliant URL encoding with percent-encoding, query parameter parsing, and internationalized domain support.

Lorem Generator

Pseudo-random Text Generation

Markov chain-based text generation with customizable word patterns, paragraph structure, and Latin vocabulary database.

Text Diff Checker

Myers' Diff Algorithm

Implements longest common subsequence algorithm for efficient text comparison with word-level and character-level diff visualization.

QR Code Generator

Reed-Solomon Error Correction

QR Code specification implementation with configurable error correction levels, custom logos, and vector/raster output formats.

Text Statistics

NLP-based Text Analysis

Advanced text metrics including readability scores, keyword density, sentiment analysis, and reading time estimation algorithms.

HTML Entity Converter

HTML5 Entity Reference

Complete HTML5 entity mapping with numeric character references, named entities, and XSS prevention through proper escaping.

Unicode Converter

UTF-8/16 Encoding Standards

Unicode transformation with code point conversion, normalization forms (NFC, NFD, NFKC, NFKD), and bidirectional text support.

Data Format Converter

Multi-format Parsing Engines

Cross-format conversion using dedicated parsers for JSON, XML, YAML, CSV with schema validation and data type preservation.

Why Choose Fixit?

Privacy-First Approach: We don't require user accounts or store personal information. Most tools process data directly in your browser or on secure servers without permanent storage.

Developer-Friendly: Built by developers, for developers. All tools are designed with real-world use cases in mind, from API testing to code formatting.

Constantly Improving: We regularly add new tools and improve existing ones based on user feedback and emerging needs in the development community.

Modern Technology: Built with the latest web technologies for optimal performance, security, and user experience.