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🗂️

Batch resize lab

Bulk Image Resizer

Batch resize JPG, PNG and WebP photos to chosen maximum dimensions. Free: 3 images per run; Pro: up to 20.

Open tool

Accepted

JPG, PNG, WebP

Limit

3 files · up to 10 MB each

Result

Images → Images

Handling

Auto cleanup after 2h

Usage

Today:

Usage unavailable.

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Select a file to begin Ready to configure and run Uploading securely… Queued for processing… Processing your file… Finished — your result is ready Processing failed — review the message below

Ready for your file

Choose a file and review the available settings for this tool. Keep the source so you can compare the result.

🗂️

Resize a whole image set with one consistent rule.

or browse files

Max file size: 10MB

Max files per run: 3

Supported formats: JPG, PNG, WebP

Upload one or more JPG, PNG, or WebP images. They will all use the resize settings you choose below. Max 10MB per file.

Smart file detection

✓ images uploaded successfully

Ready to resize

✓ 1 image uploaded successfully

Ready to process

✓ images uploaded successfully

Ready to process

✓ Resize Image input ready
Resize input preview

Ready to resize

Leave one field blank to preserve aspect ratio automatically.

Leave one field blank to preserve aspect ratio automatically.

Aspect ratio preservation: Always on.

Saved tool settings

Save your current settings and apply them with one click.

Advanced: multi-step processing (optional)

Pipeline Builder

Build a multi-step flow (compress, convert, resize, merge) and run it in one upload.

Saved presets

Sign in to save and reuse pipeline presets.

Files are uploaded and processed in the background. You will see links and previews when the run is finished.

Share the tool with a colleague — never your uploaded file. Public tool links can be opened without an account.

Your files are ready. Download:

Download all (ZIP)

Run completed. Your outputs are ready.

Open the download section below to fetch your result files.

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Input summary

PDF compression summary

Original size

Compressed size

Reduced by

Pages

No file-size reduction for this PDF. Very small or already optimized documents can become larger after reprocessing. You can download the result or keep your original file.

The processed video is larger than your original. Compression savings depend on the source codec, duration and resolution. Compare both files before sharing and keep the smaller original when possible.

Success! Your PDF pages were converted successfully.

Download your JPG images now or save them to your workspace.

Success! Your PDFs were merged successfully.

Download your merged PDF now or save it to your workspace.

Success! Your PDF was split successfully.

Download your extracted pages now or save them to your workspace.

Success! Your JPG images were combined into a PDF.

Download your output now or save it to your workspace.

CSV processing summary

Input rows

Output rows

Output files

Rows removed

Output size

⚡ Process faster with Pro

Higher limits, priority processing, longer retention, and batch uploads.

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Bigger files
Longer retention
Priority processing

⚡ Process files faster with Pro

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Share this result

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Smart next steps

Based on this run, here are two high-impact follow-up actions.

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How it works

1

Upload multiple images

Select up to 3 images on Free, or up to 20 on Pro. This tool allows up to 10 MB per file and does not accept GIF files.

2

Set your target dimensions

Set the maximum width and/or height. Larger images shrink to fit the chosen bounds without stretching or upscaling.

3

Download all resized images

Check the dimensions and download each resized image individually, or download the automatically generated ZIP when the run produces several files.

🔗 Related image tools 4 related tools

About Bulk Image Resizer

Use the CodeStorms Bulk Image Resizer to batch resize photos, product images, screenshots and website graphics with one shared size rule. Add up to 3 JPG, PNG or WebP images per conversion on Free, or up to 20 on Pro (maximum 10 MB per file for this tool). Choose a maximum width, height or both; images are scaled down proportionally to fit the configured bounds, never stretched or enlarged. The maximum height may also constrain tall photos even when you specify a width. Review each resized file before download. Out...

→ Resize a selected batch of product photos to a maximum 800px width before a CMS import. → Reduce headshots to fit within a 400 × 400px bounding box without distorting their aspect ratios. → Prepare multiple hero images to a specific theme width before developer handoff. → Reduce a set of high-resolution client photos to web-safe sizes in one step.

Related guides and workflows

📦 Supported formats 3 file types

JPG PNG WebP

❓ Frequently asked questions 5 answers

Free can resize up to 3 images in one run; Pro supports up to 20. Each input is limited to 10 MB for this tool.

Yes. Upload multiple supported images and apply the same width or height rule across the batch. This works well for bulk resizing photos, pictures, product images, screenshots, and website assets.

Yes. The tool is designed for one resize rule across multiple files, so you can resize many images in one run instead of repeating the same edit file by file.

Yes. If you set only a width, the height is calculated automatically to preserve the original aspect ratio.

JPG, PNG and WebP are supported. Each resized image keeps its source format. You can download results separately or use the automatic ZIP of all results when multiple files are produced. GIF input is not supported.