Linu

A collection of free, browser-based utilities for PDF manipulation, image processing, text editing, and developer tasks. It solves the problem of needing to install software or upload sensitive files to third-party servers. The tools are aimed at developers, data professionals, and general users who need quick, private, and offline-capable utilities. It is positioned as a privacy-focused alternative to online tools, with all processing done client-side, no accounts, and no tracking.

Key features

• Merge multiple PDFs with drag-to-reorder
• Split PDF by page range or extract pages
• Extract images from PDFs
• Convert PDF to grayscale for printing
• Add text watermark to PDF pages
• Create 2-up booklet layout for printing
• Compress images to WebP or AVIF
• Resize images in bulk with aspect ratio
• Crop images for social media ratios
• Remove EXIF metadata from photos
• Generate favicons from text or emoji
• Convert SVG to PNG at any resolution
• Count words, characters, and reading time
• Convert text case (camelCase, snake_case, etc.)
• Clean and sort lists, remove duplicates
• Markdown editor with live preview and HTML export
• Diff checker for text or code
• Generate lorem ipsum placeholder text
• Format and validate JSON with tree view