Every tool runs entirely in your browser. No uploads, no data collection, instant results. Calculate dimensions, convert units, resize images, and compress files — all client-side.
Calculate aspect ratios from pixel dimensions. Enter width/height and get the simplified ratio instantly. Includes common presets (16:9, 4:3, 1:1) and visual bounding box preview.
Bidirectional pixel-to-centimeter converter. Enter pixels and get cm (or vice versa) at any DPI. Includes presets for common DPI values (72 web, 300 print) and live conversion tables.
Convert pixels to inches and vice versa. Includes print size reference table showing common photo dimensions (4×6, 8×10, 16×20) with pixel equivalents at 150/300 DPI.
Three calculation modes: find DPI from dimensions, find required pixels from target DPI, or find print size from pixels. Includes viewing distance chart and DPI vs PPI explainer.
Client-side image resizer using Canvas API. Resize by exact pixels, percentage, or target file size. Lock/unlock aspect ratio. Export as JPEG/PNG/WebP. All processing in-browser — no server upload.
Compress images in-browser with quality slider and real-time file size preview. Supports JPEG/PNG/WebP. Side-by-side comparison. Batch mode for multiple files. Download individually or as ZIP.
Convert between HEX, RGB, RGBA, HSL, HSLA, and CMYK. Includes color picker, palette generator (complementary, triadic, analogous), and WCAG contrast checker.
Enter width and height in any unit, get CSS output in px, rem, em, vw/vh, %, and aspect-ratio property. Live preview box. Responsive container generator with breakpoints.
Enter a base design width, get recommended breakpoints for mobile/tablet/desktop. Visual strip showing where each breakpoint falls. Export as CSS, Tailwind config, or SCSS variables.
Enter width × height to get megapixel count. Or enter megapixels + aspect ratio to get dimensions. Includes camera model reference table and maximum print size calculator at various DPI.
Enter dimensions, bit depth, and format to estimate uncompressed and compressed file sizes. Quality sliders for JPEG/PNG. Batch estimator for multiple sizes. Useful for web performance budgeting.
Every tool on this page runs 100% client-side. Images and data are processed in your browser using JavaScript Canvas API and Web APIs. Nothing is uploaded to any server. No tracking, no data collection, no cookies (except localStorage for theme preference).