Privacy-first tools that run entirely in your browser. No data is ever sent to a server.
Combine PNG images into one PDF with page previews, reordering and paper settings
Convert AVIF images to PNG locally, with transparency and batch ZIP downloads
Convert PNG images to WebP with lossless or lossy compression and transparency
Count words, characters, sentences, and paragraphs. Estimate reading time instantly.
Format, validate and explore JSON. Open a local file, browse a collapsible tree, and copy or download the result.
Compare two JSON documents and list every difference with its path
Format, beautify, and minify valid or broken HTML
Paste HTML or open a file to see its rendered output
Write HTML, CSS and JavaScript with a live preview
Write JSX and preview React components instantly
Build responsive grid layouts visually and export HTML and CSS
Convert HEX colors to RGB, HSL, and CSS values
Pick colors visually and get HEX, RGB, HSL, contrast, and CSS
Convert WebP images to PNG in your browser, one file or a whole batch
Convert WebP images to JPG with quality control, a background color and batch ZIP downloads
Turn an image into website icons with previews and ready-to-copy HTML
Pick exact colors and extract a CSS or JSON palette from a local image
Test foreground and background colors against WCAG contrast thresholds
Generate harmonies and export CSS, Tailwind values, or design tokens
Convert timestamps to dates and vice versa
Encode and decode text to Base64 format. Supports UTF-8 characters.
Generate placeholder text for designs
Encode and decode URLs and components
Generate random UUIDs/GUIDs
Generate MD5 and SHA hashes from text
Convert between Word documents and Markdown
View and preview Markdown and .md files, rendered like GitHub
Convert Markdown and .md files to clean PDFs, privately
Convert text between upper, lower, title and code cases
Decode, verify, and generate JWT tokens
Write Markdown with live preview, diagrams, and PDF export