Free Online Tools
Convert, generate, calculate—all in your browser. No uploads, no signup.
AI-Powered Tools
View all AI tools →Popular Tools
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Validators
Validate JSON, XML, YAML syntax, test regular expressions, verify credit cards, IBANs, emails, and check security credentials.
Formatters
Beautify and format JSON, XML, SQL, JavaScript, CSS, HTML, and YAML code. Clean up messy code with proper indentation.
File Viewers
View ZIP, 7z, ISO archives, CAD files (DXF, STL), medical images (DICOM), spreadsheets, and specialized formats without installing software.
Calculators
Calculate percentages, aspect ratios, RAID storage capacity, reading time, word frequency, and gaming stats.
Why Use ToolsDock?
Unlike traditional online tools that upload your files to remote servers, ToolsDock processes everything directly in your web browser using modern JavaScript APIs. Your sensitive documents, images, and data never leave your device.
- Privacy-First Architecture: All file processing uses client-side JavaScript. No server uploads, no data collection, no tracking.
- Works Offline: Most tools continue working even without an internet connection after initial page load.
- No Account Required: Use any tool immediately without creating an account, verifying email, or providing personal information.
- No File Size Limits: Process files as large as your browser can handle—typically hundreds of megabytes.
- Open Standards: Built on Web APIs like Canvas, File API, Web Workers, and WebAssembly for maximum compatibility.
How Browser-Based Tools Work
- You select a file from your computer using the file picker
- JavaScript reads the file directly from your local storage
- Processing happens entirely in your browser's memory
- The result is generated and made available for download
- No data is ever transmitted to any server
Technical note: ToolsDock uses the File API, Canvas API, and Web Workers for heavy computations.
Common Use Cases
Web Developers
Format JSON and XML responses, convert images for web optimization, generate UUIDs for database records, encode/decode Base64 strings, and minify CSS/JavaScript for production.
Explore formatters →Designers
Convert between image formats, generate color codes, resize images for social media, create QR codes for marketing materials, and extract colors from images.
Explore image tools →Content Creators
Merge PDFs, convert images to PDF, calculate reading time, generate thumbnails, create social media cards, and convert markdown to HTML.
Explore PDF tools →Gamers
Create guild emblems for MMORPGs like Ragnarok Online, MU Online, Lineage 2, Flyff, and ROSE Online. Calculate DPS, damage, and experience points.
Explore gaming tools →Frequently Asked Questions
Ready to Get Started?
Search for a tool above or browse our categories to find exactly what you need.