The Image Resizer is a free online tool from BulkConverters that lets you resize images to exact pixels or by percentage. Use it one file at a time, or switch to bulk mode to process many files in a single job — with live progress, a stop-and-keep-finished control, and automatic filename versioning so nothing is ever overwritten. Like every tool in our Image Tools collection, it is processed by a hardened image pipeline (libvips/sharp) inside a sandboxed worker.
What the Image Resizer does
Resize images to exact pixels or by percentage. Whether you found this page searching for "image resizer" or "resize image", the tool above is built to do exactly that — quickly, accurately and without sign-up for the free tier. BulkConverters keeps the interface deliberately simple: the controls you see are the only ones you need, and sensible defaults are filled in for you.
How to use it
Add your input above, choose any options, then run the tool and copy or download the result. Results are shown right on this page, and where a file is produced you can download it with a single click.
Privacy, retention and security
Your input is processed in a network-isolated, time-limited environment. On the free tier, outputs are short-lived and are not saved to your account; paid plans add one-month history and file retention. Files are encrypted at rest and in transit, and uploads auto-expire — see our retention policy for the specifics. We never sell your data, and conversions are isolated so one task can never see another's files.
Converting in bulk
Need to process a whole folder? Bulk mode queues every file as one job and shows you a live progress bar with elapsed time, an estimated time remaining and a projected finish time. You can stop the job at any point and still keep everything that has already completed, and if two outputs would share a name we version them automatically (for example, "result (1)") rather than overwriting. The same job is available through our REST API for automation.
Frequently asked questions
Is the Image Resizer free?
Yes. The Image Resizer is free to use on our ad-supported tier. Upgrading removes ads and raises file-size and batch limits, and adds API access on higher plans.
Do I need an account?
No account is required for free, single use. You only need to sign in if you want saved history, larger limits, bulk at scale, or API access.