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Batch image conversion

Batch converter

Convert multiple image files in one run and collect the results in a single ZIP download.

✓ No account✓ Files stay in this tab during conversion✓ No watermarks

Batch convert → Download ZIP

Apply one output setup to a group of still images and collect the results in one archive.

Drop many images here

Limit: 200 files per batch. Large files may still exceed device memory; use smaller groups when needed.

Accepted: image/png, image/jpeg, image/webp, image/bmp, image/gif, image/avif, image/tiff, image/x-icon · Multiple files supported

Create ZIP

0 files • 0 B

Batch settings

Same controls as raster conversion tabs.

Output format

Resize

Off = keep original size.

Advanced quality

Resampling

Sharpen after resize0%

Image enhancement

Optional tone, softening, sharpening, and resize adjustments.

Auto tone balancing

Applies a fixed baseline for contrast, colour, and exposure.

Downscale strength65%

File naming patternUse {name} + {ext}

About this conversion

What this tool does

Batch conversion applies one shared output setup to a group of still images and places the results in a ZIP. It is useful when a collection needs the same format and maximum dimensions, while the dedicated converters remain better for one-off files that need individual attention.

Instructions

How to convert your file

1
Add a representative subset first and remove any file that does not preview correctly.
2
Choose PNG, JPG, or WebP and set the shared dimensions and quality.
3
Check the naming pattern so files will remain distinguishable inside the ZIP.
4
Create the ZIP, keep the tab open, and inspect several outputs before processing the full collection.

Settings

Choose the right export settings

Shared settings: Every file receives the same output format, quality, maximum dimensions, and appearance adjustments.
File limit: The interface accepts up to 200 items, but practical capacity also depends on pixel dimensions and available memory.
Naming: Use the original base name or a pattern containing {name}; a fixed name can create collisions inside a batch.
ZIP output: Packaging avoids a separate download prompt for every converted image.
Batch check: Count the ZIP entries and compare that count with the successful inputs. Check for duplicate names, then open samples from the largest, smallest, portrait, landscape, and transparency-sensitive sources.

Example workflow

Example: preparing a folder of article images

Test five varied files, set a maximum width that matches the site's largest content column, and export WebP at a visually checked quality. Confirm that portraits, landscapes, transparency, and filenames behave as expected before adding the rest of the folder.

Compare PNG, JPG and WebP with our test card →

Limitations

Before you download

Large batches and high-resolution sources can exceed browser memory even when the item count is below 200.
One settings profile is applied to every file; mixed requirements should be split into separate batches.
Animated files are treated as still images and browser-dependent input formats can fail to decode.

FAQ

Questions about Batch ZIP

Can each image use different settings?

No. Split the files into separate batches or use a dedicated converter for individual treatment.

Why can a batch slow down?

Each source must be decoded, rendered, encoded, and held for ZIP packaging in the same browser session.

Are the source images added to the ZIP?

No. The archive contains the converted outputs created by the selected settings.