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Web Tools & Utilities

Free online tools for everyday tasks. Simple, fast, secure and easy to use. Works entirely in your browser – your data stays with you.

Data Comparison Tool

Compare datasets side by side to identify additions, removals, and changes between versions

Features
Excel/CSV file importInteractive column mappingKey-based row matchingHighlighted differencesFiltering and sortingExport to Excel/CSV
Categories
DataBusinessUtility

Mermaid Diagram Editor

Online Mermaid diagram editor with real-time preview for flowcharts, sequence diagrams, and more

Features
Real-time diagram previewMultiple diagram typesExport as SVG/PNGShare diagramsDark mode supportSample templates
Categories
DevelopmentDesignDevOps

World Time Zone Converter

Convert and compare times across multiple time zones with visual timeline

Features
Multi-Timezone ComparisonBusiness Hours VisualizationDST Smart DetectionTime Travel SliderSmart Timezone SearchShare & Export
Categories
BusinessUtility

Julia Editor

Online Julia editor with real-time execution and scientific computing support

Features
Julia ExecutionStandard LibrariesMultiple DispatchError AnalysisScientific ComputingCode Sharing
Categories
CodeDevelopment

Lua Editor

Online Lua editor with real-time execution and game scripting support

Features
Lua ExecutionConsole OutputStandard LibraryError HandlingMetatable SupportCode Sharing
Categories
CodeDevelopment

Go Editor

Online Go editor with real-time execution and concurrency support

Features
Go ExecutionStandard LibraryConcurrencyError HandlingPackage SupportCode Sharing
Categories
CodeDevelopment

Ruby Editor

Online Ruby editor with real-time execution and object-oriented programming support

Features
Ruby ExecutionConsole OutputStandard LibraryError DetectionGem SupportCode Sharing
Categories
CodeDevelopment

C/C++ Editor

Online C/C++ editor with real-time compilation and execution

Features
Code ExecutionConsole OutputStandard LibraryError DetectionMemory SafetyCode Sharing
Categories
CodeDevelopment

SQL Editor

Online SQL editor with query execution and database tools

Features
SQL ExecutionQuery ResultsSyntax HighlightingError DetectionSample DatabasesQuery History
Categories
DataCode

PHP Editor

Online PHP editor with real-time execution and web integration

Features
PHP ExecutionWeb IntegrationError HandlingConsole OutputCode SharingFile Import/Export
Categories
CodeWeb

Python Editor

Online Python editor with real-time execution and standard library support

Features
Python ExecutionConsole OutputStandard LibraryError HandlingCode SharingFile Import/Export
Categories
CodeDevelopment

TypeScript Editor

Online TypeScript editor with real-time compilation and type checking

Features
Real-time compilationType checkingWeb integrationError detectionES6+ supportDOM type safety
Categories
CodeWeb

Cron Expression Generator

Visual crontab generator with real-time preview and plain English descriptions.

Features
Visual schedule builderReal-time previewPlain English translationsCommon schedule templates
Categories
DevOpsUtility

YAML Editor

Online YAML editor with schema validation and multi-document support

Features
Schema validationMulti-documentJSON conversionReal-time validation
Categories
DataDevOps

Markdown Editor

Online Markdown editor with live preview

Features
Live previewGitHub flavoredExport options
Categories
TextDevelopment

JSON Editor

Online JSON editor with formatter and validator

Features
FormatValidateTree view
Categories
DataDevelopment

HTML/CSS/JS Playground

Online code playground for web development

Features
Live previewMultiple panesConsole output
Categories
WebDevelopmentCode

More tools coming soon!

We're constantly adding new tools and utilities to help streamline your workflow. Check back regularly for updates.