Bulk Duotone Image Effect Free
Runs 100% in your browser — your files never leave your device.
Give a whole gallery a unified two-tone brand look, restyle a set of photos to match a palette, or create consistent editorial art. Your shadow and highlight colors are applied to every image, and all the processing 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
Apply duotone 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 duotone workflows
Give a whole gallery one two-color brand treatment, restyle a set of campaign photos to a strict palette, or produce a consistent editorial series where every image shares the same two inks. Brand teams use exactly this to keep photo sets on-palette. For one image at a time, the single-image duotone tool does the same job.
One setting, every file
One shadow and highlight colors drives the whole batch: set it once and every image receives the identical duotone 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 duotone tool?
Yes — every file runs through the same duotone pipeline as the single-image version. One setting drives all of them; nothing is averaged or compromised across the batch.
Do both colors apply to every file in the batch?
Yes — shadows map to your first color and highlights to your second across the whole set, so a mixed batch of photos comes out as one visually unified series.