Bulk resize images in one run: drop a folder of photos or a ZIP, set one maximum dimension, such as 1600 px for a gallery or 1080 px for socials, and every image is resized with high-quality resampling and comes back in a single ZIP. Images already smaller than the limit keep their size rather than being upscaled. It is a free batch image resizer that runs in your browser, so a few hundred photos are resized without any of them being uploaded.
How it works
- Drop an image, or many, or a ZIP, for a batch.
- Pick the format and either a quality level, a maximum dimension, or an exact target file size.
- Convert & download. The panel shows the real output size and dimensions.
Questions
- How many files can one batch take?
- Up to 500 files or 2 GB of input per run, dropped as loose files or a single ZIP. Items process one at a time on your device, nothing is uploaded, and the progress strip shows a per-item ETA. Bigger jobs: split into two drops.
- What do I get back?
- One ZIP: every processed file, named exactly like the single-file download would be, plus _report.txt and _report.json listing each input and what happened to it, including any that failed and why. A cancelled batch still downloads the items finished so far, with the report saying so.
- Does my file get uploaded?
- No. The models and all processing run inside your browser on your own device. You can verify this yourself: open your browser’s DevTools, watch the Network tab, and process a file: there are no uploads. After the first visit most tools also work fully offline.
- How does "compress to target size" work?
- The tool searches the quality setting until the output lands under your target at the highest quality that fits, using at most a handful of encode passes, all local. If even the lowest quality overshoots, it steps the resolution down and says so.
- Why is AVIF not offered?
- Browsers can decode AVIF but cannot encode it from a canvas today. Rather than shipping a broken option, it is not offered; WebP typically gets most of the size benefit.
- Does converting remove metadata?
- Yes. Re-encoding drops EXIF and GPS data as a side effect, and the panel says so. For lossless metadata removal that keeps the original pixels, use the metadata remover instead.