All Tools

Crop and resize images to standard aspect ratios for social media, video, and web. Supports Cover, Contain, and Stretch fit modes with drag-to-reposition.

Add line numbers or custom prefixes to each line of text. Supports numbered formats, bullet points, custom patterns, padding, and prefix or suffix.

Convert between time units instantly. From nanoseconds to millenniums, get accurate conversions for scientific, everyday, and calendar time units.

Sort lines of text alphabetically (A-Z, Z-A), by length, numerically, randomly, or in reverse. Trim, dedupe, and clean up lists instantly.

Remove duplicate lines from text instantly. Compare by case, trim whitespace, keep the first or last occurrence, sort the result, and download it.

Find and replace text online with regex, case-sensitive, and whole-word matching. Highlight matches instantly, preview changes side by side, and replace all in one click.

Convert text between UPPERCASE, lowercase, Title Case, Sentence case, and programming styles like camelCase, snake_case, and kebab-case in real time.

Test your internet connection speed instantly. Measure download, upload, ping latency, and jitter with accurate results from global servers.

Check if your internet is working and how healthy it is. See online status in real time plus ping, jitter, and a quality rating to judge connection stability.

Check which Web APIs your browser supports. Scans 105 features across storage, graphics, audio, network, sensors, hardware, and more.

Generate and parse User Agent strings for any browser, OS, and device. Built for developers, QA testers, and SEO work, with bulk generation and side-by-side comparison.

See what browser, device, OS, and system settings you are using. Reads your User Agent, screen, GPU, and hardware locally, with a built-in UA parser and JSON export.