Bulk image resizer.
Resize multiple images at once by pixels or percentage. Keep each photo’s proportions, or use an exact center crop. Preview the batch and save JPG, PNG or WebP files together.
Drop your images here.
Or choose several from your device.
Just exploring?
Up to 100 JPG, PNG or WebP images.
40 MB / 32 MP each · 256 MB per batch
Your originals stay unchanged.
Need exact pixels? Keep dimensions and increase the limit or change format. If smaller images are acceptable, retry the batch with smaller dimensions allowed.
Resize a mixed batch to 50%.
50% scales each edge and keeps proportions. File size still depends on the image and format. These original test files were processed with Jofun v1.4.0 on 16 October 2026 in desktop Chromium.
| Original test image | Saved dimensions | Actual file |
|---|---|---|
| Landscape · 1200 × 900 | 600 × 450 | JPG · 137,704 bytes |
| Rotated portrait · displayed 640 × 960 | 320 × 480 | JPG · 1,660 bytes |
| Transparent artwork · 960 × 640 | 480 × 320 | PNG · 4,319 bytes |
The PNG is larger in bytes after re-encoding. These synthetic files demonstrate dimensions and orientation, not typical compression, speed or customer results. Browser encoders may produce different byte sizes.
Bulk resize photos.
Set one width or height for a whole batch and keep proportions. Add a file-size limit when needed, then check each result’s pixels, format and bytes.
Made for a phone, too.
Choose multiple images, process them in a queue and save individually or together. No account needed.
Your files stay yours.
Processing happens in your browser. Images are not uploaded. Refreshing or closing the tab clears the batch.
How to bulk resize images online
- Add one image or a batch. Choose up to 100 still JPG, PNG or WebP files.
- Choose the task. Choose pixels or a percentage, add an optional KB limit, or convert formats while keeping dimensions.
- Preview and save. Check the result size. Save one image directly or download the batch as a ZIP.
Batch image resizer: one setting, multiple images
To resize multiple images at once, choose your files and apply one width, height or percentage to the whole batch. You can still inspect each output before saving. A failed image does not discard the successful results.
Which setting gives the size you need?
| Your goal | Choose | What stays different |
|---|---|---|
| Photos up to 1200px wide, without cropping | Fit inside; width 1200; height blank | Heights follow each photo’s proportions. Smaller originals stay small. |
| Every output exactly 800 × 800 | Center crop; width and height 800 | Edges are removed. Smaller inputs need explicit enlargement permission. |
| Make each image half as large in pixels | 50% of original size | Each edge halves; different originals still have different dimensions. |
Resize by pixels or percentage
Use Pixels for a specific width, height or exact center crop. Use Percentage to scale different-sized photos by the same proportion: 25%, 50%, 75% or your own whole percentage from 1 to 100. For example, 1200 × 900 becomes 600 × 450 at 50%.
Start a 50% batch → · Need a 100 KB or 200 KB file instead?
Check image resolution, aspect ratio and file size before resizing →
Resize, compress or convert?
Dimensions are measured in pixels; file size is measured in bytes. To reduce file size while keeping dimensions, choose a compression task. JPG and WebP support adjustable quality; PNG re-encoding may not make a file smaller.
Convert JPG, PNG and WebP
These tasks keep the original pixel dimensions, within the output limits. JPG replaces transparency with white. Converting JPG to PNG does not restore lost detail. Still images only; HEIC and animation are not supported.
A few practical details.
How do I resize many images at once?
Add your files, enter a width or height, choose a format and select Process images. Fit mode preserves proportions. Center crop requires both dimensions. Preview each result, then save single images or the automatically prepared ZIP.
Can I resize images to 100 KB or 200 KB?
Enter 100 or 200 in Maximum size. JPG and WebP quality is adjusted first while keeping the chosen dimensions. If a file still cannot fit, choose whether to keep exact pixels and edit the limit, or explicitly allow smaller dimensions and retry. PNG is lossless, so it may need smaller dimensions or another format. A result over the limit is never offered as a successful download.
Will this work on Android or iPhone?
The tool uses browser image features and is designed for mobile screens. Browser support and memory vary. Try a small batch first. Android downloads usually appear in Downloads; on iPhone, check Safari’s download list and the Files app. The three-image sample workflow and saved ZIP files have been checked on Android 15 with Chrome and iOS 18.5 with Safari. Larger batches can use more memory.
What happens to transparency and metadata?
PNG and WebP can retain transparency; JPG uses a white background. Images are rendered and re-encoded, so source EXIF, GPS and embedded metadata are not copied. Color profiles and precision may change; keep your originals for print or archival work.
Can I use HEIC or animated files?
This release supports still JPG, PNG and WebP. HEIC, GIF, animated PNG and animated WebP are not supported. Export a still JPG or PNG first.
Is it free? Are there limits?
Yes, this version is free and does not require an account. Limits protect browser memory: 100 files, 40 MB and 32 megapixels per input, 16 megapixels per output, and 128 MB of completed results. Start with fewer files on older phones.