Resize JPG, PNG, and WebP images by pixels or percentage instantly in your browser.
Resize photos by custom dimensions, percentages, or social media presets.
Quickly scale your JPG, PNG, and WebP images to the exact dimensions you need. ToolLok’s Image Resizer offers pixel-perfect control, bulk image resizing capabilities, and built-in aspect ratio locking. Everything runs locally in your browser to guarantee zero upload times, secure photo resizing, and 100% privacy.
Don't want your images squished? Lock the aspect ratio, or use the advanced Fit Modes to automatically pad your image (Contain) or cleanly crop it to fill a specific box (Cover) without distorting the subject.
Stop guessing banner sizes. Choose from pre-configured dimensional templates for YouTube thumbnails, Instagram Posts, Facebook, X (Twitter), and LinkedIn to perfectly format your marketing assets in one click.
To prevent distortion, make sure the "Lock Aspect Ratio" button is activated when entering custom pixel dimensions. Alternatively, open Advanced Settings and change the Image Fit Mode to "Contain" or "Cover" to automatically crop or pad your photo safely.
Yes, generally reducing the pixel dimensions (width and height) of a high-resolution image will significantly lower its file size in kilobytes (KB). You can also adjust the "Export Quality" slider to compress the image further for web optimization.
Absolutely. You can upload dozens of photos at once, set your target width, height, or percentage scale, and click "Resize Images". The tool will process the entire bulk image queue instantly in your browser and allow you to download them as a single ZIP file.
Yes, it is completely secure. The ToolLok image dimension changer utilizes HTML5 Canvas processing, meaning your personal and corporate images are resized entirely on your local device. No files are ever sent to our servers.
