Tool Collection

Simple tools for everyday use that run entirely in your browser.

Measure your device's computing performance in the browser and evaluate with scores and ranks.

Lighten and convert images to WebP format in the browser. Supports batch processing and EXIF removal.

Generate QR codes from URLs or text. Supports logo embedding, Wi-Fi setup, and calendar event creation.

Upload a QR code image to decode the embedded string. URLs can be opened directly. All processing is done in the browser.

Extract, merge, or convert PDF pages to images. Select specific pages with previews. Runs safely in the browser.

Automatically detect and convert character encodings (UTF-8, Shift_JIS, etc.) while simulating the target file size. Supports pasting text.

Read photo metadata like shooting date, camera info, and GPS. Photos are processed locally for safety.

Create passwords with specific conditions. Settings are included in the URL for easy sharing. Runs safely in the browser.

A place to temporarily save text. Saved text is stored in your browser's local storage.

Displays screen size and user agent information for your current device.

Compare two texts or files and visually highlight differences. Supports multiple file uploads and various comparison modes.

Calculate the difference between two dates. Supports various date input formats.

Easily draw from an entered list. Features include removing drawn items and saving history.

Convert uploaded Markdown files or directly entered text into text-selectable and searchable PDFs right in your browser.