Hackathon Finder
Find 500+ hackathons worldwide. Filter by date, location, theme, and prizes.
A curated collection of free, privacy-focused online tools for developers, designers, and marketers. No signup required – just open and use.
Find 500+ hackathons worldwide. Filter by date, location, theme, and prizes.
Create short links with a fun flag-guessing game. Perfect for sharing links with friends.
Create QR codes for URLs, WiFi, contacts, emails, and more. Customize colors and add logos.
Format, validate, and transform JSON with syntax highlighting, tree view, and conversion tools.
Write Markdown with live preview and print/export to PDF. Split-view editing with formatting toolbar.
Generate secure passwords and passphrases with customizable options and strength meter.
Compress images up to 90% smaller. Batch process multiple files with drag-and-drop.
Generate harmonious color palettes with accessibility checker and image color extraction.
Convert documents, images, and data files. Word to PDF, PNG to JPG, JSON to CSV, and 25+ more conversions.
Create QR codes for URLs, WiFi, contacts, emails, and more. Customize colors and add logos.
Format, validate, and transform JSON with syntax highlighting, tree view, and conversion tools.
Encode and decode Base64 strings and files with URL-safe options and file support.
Convert Unix timestamps to dates and vice versa. Support for timezones and duration calculations.
Write Markdown with live preview and print/export to PDF. Split-view editing with formatting toolbar.
Generate placeholder text in various styles including classic, hipster, corporate, and tech.
Generate secure passwords and passphrases with customizable options and strength meter.
Compress images up to 90% smaller. Batch process multiple files with drag-and-drop.
Generate harmonious color palettes with accessibility checker and image color extraction.
Generate SEO meta tags, OpenGraph, Twitter cards, and JSON-LD structured data.
Create QR codes for URLs, WiFi, contacts, emails, and more. Customize colors and add logos.
Format, validate, and transform JSON with syntax highlighting, tree view, and conversion tools.
Write Markdown with live preview and print/export to PDF. Split-view editing with formatting toolbar.
Generate secure passwords and passphrases with customizable options and strength meter.
Compress images up to 90% smaller. Batch process multiple files with drag-and-drop.
Generate harmonious color palettes with accessibility checker and image color extraction.
Find 500+ hackathons worldwide. Filter by date, location, theme, and prizes.
Create short links with a fun flag-guessing game. Perfect for sharing links with friends.
Generate custom fonts using AI for your creative projects.
Transform complex data into stunning interactive visualizations.
Convert documents, images, and data files. Word to PDF, PNG to JPG, JSON to CSV, and 25+ more conversions.
Generate SEO meta tags, OpenGraph, Twitter cards, and JSON-LD structured data.
Encode and decode Base64 strings and files with URL-safe options and file support.
Convert Unix timestamps to dates and vice versa. Support for timezones and duration calculations.
Generate placeholder text in various styles including classic, hipster, corporate, and tech.
Explore relationships between global statistics with scatter plots and regression analysis.
All processing happens in your browser. Your data never leaves your device.
No server round-trips means instant results. Tools load quickly and work offline.
No subscriptions, no limits, no watermarks. Professional tools available to everyone.
Yes, all tools on Maptheory are 100% free to use. There are no hidden costs, no premium tiers, no watermarks, and no usage limits. We believe everyone should have access to high-quality productivity tools without barriers.
No account or signup is required. Simply open any tool and start using it immediately. Your work is processed entirely in your browser, so there's no need to authenticate or store your data on our servers.
Absolutely. All our tools process data entirely in your browser using client-side JavaScript. Your files, passwords, and other sensitive information never leave your device. This is true for all tools including the password generator, image compressor, and QR code generator.
Yes! Since our tools run entirely in your browser, they can work offline once the page is loaded. You can even install Maptheory as a Progressive Web App (PWA) for offline access. This is especially useful for the password generator, JSON formatter, and other text-processing tools.
We offer a diverse collection of productivity tools across several categories: Developer Tools (QR code generator, JSON formatter, Base64 encoder, timestamp converter), Text & Content Tools (Markdown editor, Lorem ipsum generator, password generator), Image Tools (image compressor, color palette generator), SEO & Marketing Tools (meta tag generator), and Data Tools (correlation analysis, hackathon finder).
Yes, all our tools are fully responsive and work great on mobile devices, tablets, and desktops. The interfaces adapt to your screen size, and touch interactions are fully supported. You can even install the Maptheory app on your home screen for quick access.
Tools are organized into intuitive categories: Developer Tools for coding and programming utilities, Text & Content for writing and text manipulation, Image Tools for visual content, SEO & Marketing for search optimization, Data & Analytics for data exploration, and Other Tools for miscellaneous utilities. You can filter and search to find exactly what you need.
We love hearing from our users! If you have a tool suggestion, you can email us at batikanor@gmail.com with your idea. We regularly add new tools based on user feedback and common developer/designer needs.
We're constantly adding new tools. Let us know what you'd like to see next!
Suggest a ToolPart of Maptheory – Geography Games & World Statistics