A batch job without installing software
For a folder of exports at one size, add everything and run once. Where you need per-file renaming rules or format presets, a desktop tool still goes further.
FastStone Photo Resizer is a desktop batch converter; this page is the browser equivalent for the same job — a queue of photos, one set of target dimensions, and an output per file. Nothing installs and nothing leaves the machine, which is what makes it usable on a computer you cannot administer.
Not from its own developers. This page does the same resizing in the browser, without the batch renaming and format rules the desktop program carries.
No. Files are read and processed by this browser tab, which is why the job runs on the same machine as the images.
The result is downloaded as a separate file. Keep your original until you have checked the Batch photo output.
Open the Batch photo output in the application that consumes it and spot-check the parts that matter to you; the original file stays untouched if you need to re-run with different options.
For a folder of exports at one size, add everything and run once. Where you need per-file renaming rules or format presets, a desktop tool still goes further.
Open the Batch photo output next to the original at full size and check text edges, faces, and flat backgrounds; re-encoding softens detail long before it looks wrong in a thumbnail.
Whether you are preparing web graphics, print assets, or social posts, the FastStone Photo Resizer gives you pixel-level control over width, height, and output quality.
Everything runs locally in your browser—files never leave your device. There is no account or watermark, and you can run multiple sessions without a daily quota. Open the page, upload, and download a ready-to-use image in seconds.
Supported formats depend on the page and are shown in its upload control; the standard resizer accepts JPG, PNG, and WEBP. You can lock aspect ratio, pick a preset, or type exact pixel values. Output quality is adjustable so you balance file size against sharpness before saving.
Tip: Start from the highest-resolution source you have. Downscaling preserves more detail than upscaling a small file.
For repeated tasks, bookmark the page or add it to your home screen on mobile. Settings stay visible so you can run the same dimensions on the next file without re-entering numbers.
These options load instantly because processing uses your device CPU rather than a remote queue. That keeps the tool responsive on shared Wi‑Fi and avoids upload timeouts on large originals.
Whenever everyday photo workflows is the goal, a browser resizer saves a trip through desktop editing software. You can enter the required dimensions directly, and each row redraws at the size that was written.
Save a copy of your original file before resizing. Re-export from the source if you need a different size later instead of upscaling an already shrunk image.
When sharing resized images by email or chat, confirm the recipient app does not re-compress attachments. Check the downloaded dimensions and file size before sending, because recipient apps may apply another compression pass.
Bookmark this page for repeat jobs—settings stay on screen between uploads, which speeds up daily workflows for teams that resize images in batches.
No. The FastStone Photo Resizer runs in your browser with no install step—upload, set dimensions, and download in under a minute. It is ideal when you only need correct size and format, not full photo editing.
Yes. It is free with no trial period, watermark, or hidden export fee. You can run multiple sessions for personal or commercial projects without signing in; each page shows its batch limit.
No. Processing happens in your browser using client-side JavaScript. Your files stay on your device, which makes it suitable for confidential documents, unreleased products, and personal photos.
Supported input formats depend on the page and are shown in its upload control. The standard browser resizer accepts JPG, PNG, and WEBP and exports JPG, PNG, or WEBP with adjustable quality.
Downscaling generally preserves sharpness because pixels are merged intelligently. Upscaling a tiny source will look soft—that is a limitation of any resizer. For best results, start with the largest original you have and scale down from there.
Yes. The interface is responsive on iOS and Android browsers. Upload from your camera roll, set dimensions, and save the processed image back to your gallery without installing an app.