Calculate width, height, and area from diagonal screen size and aspect ratio. Everything runs locally in your browser — nothing is uploaded.
Calculate markup percentage, selling price, and gross profit from cost. Essential for retail pricing and margin analysis.
Calculate area, perimeter, and volume for shapes including circle, square, triangle, rectangle, sphere, cylinder, cone, and cube.
Expression evaluator with keypad and history, ETA calculator with distance and speed, and a stopwatch/chronometer with lap recording.
Calculate the aspect ratio from width and height dimensions. Find the simplified W:H ratio for images, videos, and screens.
Calculate pixels per inch from diagonal resolution and screen size. Determine screen sharpness and pixel density.
Screen Size Calculator lets you calculate width, height, and area from diagonal screen size and aspect ratio. Everything runs locally in your browser — nothing is uploaded.. It works on any device with a modern web browser.
Calculate width, height, and area from diagonal screen size and aspect ratio. Everything runs locally in your browser — nothing is uploaded. It runs entirely in your browser — no software installation or data uploads required.
Direct text entry, file upload, or URL-based input — depending on the tool. Common file formats are supported for upload-based tools.
Yes. After the initial page load, Screen Size Calculator runs entirely on your device with no internet connection needed. All processing is done locally.
Yes, this tool is completely free with no usage limits, registration, or credit card required.
All processing happens locally in your browser. Your data is never uploaded to any server.
Yes. After the initial page load, the tool runs entirely offline without requiring an internet connection.
No. You can use this tool unlimited times with no quotas or restrictions.
Any modern web browser (Chrome, Firefox, Safari, Edge) on desktop or mobile. No installation needed.
Privacy Cleaner
Scans and clears browser cookies, localStorage, sessionStorage, and cached data for the current site.
Speed Test
Measures your internet connection’s download speed and latency by downloading a test file from a CDN. Upload speed is not currently measured.
Wheel of Names
Displays an animated spinning wheel that randomly selects one entry from a customizable list of names or options.
QR Code Generator
Renders a scannable QR code from any text or URL using a client-side Reed-Solomon encoder. Download as PNG.
Random Number Generator
Generates cryptographically secure random integers or decimals within a user-defined min-max range with optional repetition filtering.
Resume Builder
Provides a structured, form-based interface for entering work history, education, and skills, then renders a professionally formatted PDF resume.