About Batch image resizer
Free in-browser batch image resizer. Resize up to 50 PNG, JPEG, WebP, AVIF or GIF images by width, height, percentage or preset — avatar, social post, product detail or cover — with the aspect ratio locked or stretched, then download them all as a ZIP. Files already at the target size are copied, not re-encoded. Nothing is uploaded.
How to use Batch image resizer
- 1Open Batch image resizer, add a supported media file, and check the processing notice shown in the tool.
- 2Choose the settings and review the preview, waveform or analysis before processing.
- 3Start processing, then download the finished file when it is ready.
How your file is processed
Batch image resizer tells you where processing happens. Browser-only operations keep the file on your device; transcription and server processing upload only the media they need and apply the account limits shown in the tool.
Frequently asked questions
Is Batch image resizer free?
The tool shows its access rules before processing. Browser-only operations are free and need no account; transcription and server processing can require an account and use the limits of your plan.
Are my files uploaded anywhere?
It depends on the operation. Browser-only tools keep the file on your device. Auto subtitles uploads only detected speech segments, while server processing uploads the selected file; each tool states this before you start.
Which formats does Batch image resizer accept?
The upload field and output selector show the formats available for that operation. Browser support and the selected codec can affect which output formats are enabled.
Does Batch image resizer work on a phone or tablet?
Yes, on a current version of Chrome, Safari or Edge. Speed depends on the device, so a long clip takes longer on a phone than on a laptop — the tool tells you its limits up front rather than failing part way through.
Why can processing change the file?
Edits that change picture or sound require decoding and re-encoding. A container change or fast keyframe trim may copy packets instead. The tool states which path it uses, because re-encoding can change quality, size or metadata.