Tool StudioA growing toolkit for PDFs, images, video, and code — no sign-up, no cost, no catch.
50+
Tools
10+
Categories
Create a tool
Describe it and we'll help build it
Favorites
Quick access to your saved tools
All tools
Browse the complete catalog
Free, always
No paywalls, no premium tiers, no catch.
No sign-up needed
Open a tool and start using it immediately.
Privacy-first
Plenty of tools process entirely in your browser.
Built to last
Reliable tools you can come back to anytime.
Upload multiple images, arrange them in any order with intuitive drag-and-drop, and convert to a single PDF document. Perfect for creating photo albums, organizing scanned documents, compiling receipts, or preparing presentations. Features unlimited image uploads, drag-and-drop reordering, live preview with position numbers, support for JPG, PNG, GIF, WebP, and BMP formats, quality preservation in PDF output, individual image deletion, instant PDF generation and download, and automatic cleanup for privacy. Each image becomes a full page in your PDF with maintained aspect ratio. Ideal for creating photo albums from vacation pictures, organizing receipts and invoices, compiling scanned documents, preparing visual presentations, creating image-based reports, and archiving photos in PDF format. No file size limits, fast server-side processing, and completely secure with automatic file deletion after conversion.
Convert Microsoft Office documents to PDF format instantly. Supports Word documents (DOC, DOCX), PowerPoint presentations (PPT, PPTX), and Excel spreadsheets (XLS, XLSX). Features fast server-side conversion using LibreOffice, preserves original formatting and layout, drag-and-drop file upload, instant download of converted PDF, and supports batch processing. Perfect for creating universal document formats, archiving documents, sharing presentations, converting spreadsheets for printing, and ensuring document compatibility across platforms. All conversions are processed securely on our server with automatic file cleanup after conversion.
Interactive sorting algorithm visualizer to watch and learn how different sorting algorithms work in real-time. Visualize Bubble Sort, Selection Sort, Insertion Sort, Merge Sort, Quick Sort, and Heap Sort with step-by-step animations. Perfect for computer science students, developers preparing for interviews, and anyone learning data structures and algorithms. Features 6 different sorting algorithms with live visualizations, adjustable speed control from very slow to very fast, variable array size from 10 to 150 elements, real-time statistics showing comparisons and swaps, color-coded visualization with different colors for comparing (yellow), swapping (red), pivot (orange), and sorted (green) elements, live timer tracking execution time, responsive design that works on desktop, tablet, and mobile, dark and light theme support, and educational complexity information for each algorithm showing best, average, worst, and space complexity. Watch every comparison and swap as it happens with smooth animations. Generate new random arrays instantly. Stop and restart sorting at any time. Learn algorithm efficiency by comparing different sorting methods on the same data. Understand time complexity differences between O(n²) and O(n log n) algorithms visually. See how divide-and-conquer algorithms like Merge Sort and Quick Sort partition and solve sub-problems. Observe the heap building process in Heap Sort. All processing happens entirely in your browser with no data sent to servers. Perfect for visual learners, interview preparation, classroom teaching, algorithm comparison, and self-paced education.
Comprehensive token tool to decode, verify, and generate JWT (JSON Web Tokens) and PASETO (Platform-Agnostic SEcurity TOkens) instantly. View header, payload, and signature sections with syntax-highlighted JSON. Generate new tokens with custom payloads. Perfect for developers debugging authentication tokens, API tokens, and bearer tokens. Features instant real-time decoding as you type, support for both JWT and PASETO token formats, token generation with custom algorithms (HS256, HS384, HS512), three-part visualization showing header/version, payload, and signature/footer separately, color-coded JSON syntax highlighting for easy reading, one-click copy to clipboard for each section, and complete client-side processing for maximum security. All token processing happens entirely in your browser - tokens are never transmitted to any server, ensuring complete privacy and security. Supports all standard JWT formats and PASETO v2/v4. Ideal for debugging authentication flows, inspecting API tokens, generating test tokens, understanding token structure, validating token claims, and learning about modern authentication. No installation or registration required.
Soon you'll be able to describe a tool and have it built for you automatically.
Get started