DPI Checker (yamada-tools.jp)
Free online tool to check the DPI (resolution) of an image. Displays pixel size, file size, and recommended print size automatically. Supports JPG, PNG, WebP, BMP, and GIF formats. All processing is done in the browser.
Flip Image (yamada-tools.jp)
Free online tool to flip images horizontally or vertically. Useful for correcting mirrored selfies and reversing design assets. Supports JPG, PNG, WebP, BMP, and GIF formats. Processed entirely in the browser for privacy.
Image Format Converter (yamada-tools.jp)
Free online image format converter supporting mutual conversion between JPG, PNG, WebP, GIF, and BMP. Supports batch processing of up to 20 files (max 20MB each) with automatic file deletion after 60 minutes.
GIF Maker (yamada-tools.jp)
Free online tool to create animated GIFs from multiple images. Supports 2–20 frames with adjustable frame intervals from 100ms to 2000ms. Automatically resizes images to match the first frame. All processing is done in the browser.
Grid Split (yamada-tools.jp)
Free online image splitter that divides a single image into grid sections. Supports presets such as 2×2, 3×3, and 4×4 as well as custom layouts. Download each section individually or all at once as a ZIP file. All processing is done in the browser.
Image Overlay (yamada-tools.jp)
A free tool to overlay two images. Ideal for adding logos, inserting watermarks, and compositing images. Adjust transparency, position, and size. Processed entirely in the browser for privacy.
Monochrome Converter (yamada-tools.jp)
Free online tool to convert color images to monochrome or grayscale. Supports JPG, PNG, WebP, BMP, and GIF formats with adjustable intensity to control how much color is retained. Processed entirely in the browser for privacy.
Mosaic (yamada-tools.jp)
Apply mosaic effects to images to conceal faces and sensitive information. Adjustable intensity (2–50 levels). Processed entirely in the browser with no registration required. Output in PNG format.
Noise Reduction (yamada-tools.jp)
Free online tool to remove noise and reduce graininess from images. Supports adjustable intensity settings and before/after comparison. Processed entirely in the browser for privacy.
QR Code Generator (yamada-tools.jp)
Free online tool to generate QR codes from URLs, plain text, email addresses, phone numbers, and WiFi credentials. Supports customizable colors and sizes, and allows export in PNG or SVG format. Runs entirely in the browser with no registration required.
Image Resize (yamada-tools.jp)
Resize images by specifying pixel or percentage values. Supports batch processing of multiple images with aspect ratio lock, and presets for SNS. Compatible with JPEG, PNG, WebP, and GIF formats.
Rotate Image (yamada-tools.jp)
Free online tool to rotate images by 90, 180, or 270 degrees. Supports batch processing of up to 20 files. Useful for fixing the orientation of photos taken on a smartphone. Supports JPG, PNG, WebP, GIF, and BMP formats.