Colorize Photo is a free web tool that adds color to black-and-white pictures using an on-device neural network. Auto mode predicts colors with the ECCV 2016 “Colorful Image Colorization” model, which downloads once at about 39 MB. Users can choose from eight tonal palettes or make touch-ups with a manual brush. The tool supports batch processing without a stated photo-count limit and allows the batch to be downloaded together. It accepts JPG, PNG, WebP, and other formats the browser can open, and exports JPEG, PNG, or WebP with adjustable quality and size controls. The longest side can be up to 4096 px, and each photo has 15 undo steps. Users can paste images from the clipboard and copy colorized results as PNG. Processing runs in the browser using Canvas API and WebAssembly; the maker says photos are not uploaded, stored, or tracked. The tool requires no installation or signup and has no watermark.
Who it is for
Colorize Photo suits people who want to colorize black-and-white images in a browser, including users processing batches. Its local processing may appeal to people who do not want photos uploaded, stored, or tracked by the maker.
What is good
- Offers eight tonal palettes and a manual touch-up brush
- Processes any number of photos in batches
- Exports JPEG, PNG, and WebP
- Supports images up to 4096 px on the longest side
- Runs locally in the browser with no signup or watermark
What to know first
- Auto mode downloads a model of about 39 MB
- Each photo has 15 undo steps
Verdict
Colorize Photo pairs automatic colorization with palette choices, brush edits, and batch export. Its stated 4096 px maximum and one-time model download are useful limits to note.
Get started with Colorize Photo
- Open Colorize Photo in a web browser.
- Load JPG, PNG, WebP, or another image format your browser can open, or paste an image from the clipboard.
- Choose Auto mode or a tonal palette and make any touch-ups with the brush.
- Export the result as JPEG, PNG, or WebP, or copy it as a PNG.
What the free plan stops at
The free plan caps the longest image side at 4096 px and provides 15 undo steps per photo. It has no stated limit on the number of photos.
Questions about Colorize Photo
Is Colorize Photo free?
Yes. Its Free plan is free and has no signup, watermark, or photo-count limit.
Does it require installation or signup?
No. It runs in a browser and requires no installation or signup.
Which image formats does it support?
It accepts JPG, PNG, WebP, and other formats the browser can open. It exports JPEG, PNG, or WebP.
Where does image processing happen?
Processing runs locally in the browser using Canvas API and WebAssembly. The maker says photos are not uploaded, stored, or tracked.
What is the maximum image resolution?
The longest side can be up to 4096 px.
Can I colorize multiple photos at once?
Yes. The tool can process any number of photos and download the batch together.
Colorize Photo plans and pricing
All plansCompared on AI image colorizers
- Free plan
- Yes
- Maximum resolution
- 4,096 px
- Batch processing
- Yes
- Image upload formats
- JPG, PNG, WebP, and other browser-supported image formats
- Output formats
- JPEG, WebP, PNG
- Processing mode
- local
