Bulk Invert Image Colors Free
Runs 100% in your browser — your files never leave your device.
Process a folder of scanned negatives, invert a set of screenshots, or generate color-negative versions of many images in one go. Each file is flipped to its complementary colors individually, and every conversion stays on your device.
How it works
- 1
Add your images
Drop one or more JPG, PNG, or WebP files into the box. Nothing is uploaded.
- 2
Invert the batch
Set the control once — it is applied to every file in the batch.
- 3
Download the results
Process the batch, then download each edited image individually.
About this tool
Batch color inversion workflows
Process a whole folder of scanned negatives into positives, invert a set of dark screenshots for a printed report, or generate color-negative versions of many images for a design series. Archivists batch-invert by the folder; one pass replaces dozens of manual flips. For one image at a time, the single-image color inversion tool does the same job.
One setting, every file
One inversion drives the whole batch: set it once and every image receives the identical color inversion treatment — the same pipeline the single-image version runs, applied to each file in turn. Nothing is uploaded: the batch is processed on your device, originals are never modified, and you download each finished image individually in its original format.
Frequently asked questions
How many images can the batch handle?
As many as your browser can hold in memory — dozens of typical photos are routine. Very large batches simply take proportionally longer, and every file is processed on your own device.
Is the batch result identical to the single-image color inversion tool?
Yes — every file runs through the same color inversion pipeline as the single-image version. One setting drives all of them; nothing is averaged or compromised across the batch.
Will transparency survive the batch inversion?
Yes — every file keeps its alpha channel. Only colors flip, so logos and graphics with transparent backgrounds come out inverted but still cleanly transparent.