AI Photo Colorizer Online for Black and White Photos

Convert black and white, grayscale, sepia and faded old photos to natural-looking color in your browser, compare Original vs Colorized, fine-tune colour strength, and download high-quality JPG, PNG or WebP images.

Photo and colour settings

Choose one image, adjust the result, and process it locally.

Drop a black and white photo here

Choose JPEG, PNG, WebP or AVIF. The image stays in your browser and is never uploaded by this tool.

Choose Photo

The first colorization prepares an optimized on-device colour model. The page checks CorrectionCopy-hosted files first and uses verified fallbacks when needed. Processing stays in the browser with no website-imposed photo or output limit.

Colour appearance

Colour strength

100%

Lower values are restrained; higher values increase saturation.

Warmth

Neutral

Preserve original luminance detail for sharper faces, texture and grain

Download format and quality

Output format

Maximum dimension

Image quality

92%

Processing and privacy details

Your files are protected and safe; we never collect or share your data. The photo is decoded, colorized and exported locally. Only the processing files are downloaded. The page first checks CorrectionCopy-hosted assets and then uses verified delivery fallbacks when local assets are not present.

Predicted colours are creative estimates, not verified historical facts. The output is newly encoded and does not intentionally copy the source photo’s metadata.

Choose a photo to begin.

Before and after preview

Move the slider to inspect the estimated colour result.

Ready

Original vs Colorized preview

Choose a black and white photo, then select Colorize Photo. The vertical comparison divider will appear after processing.

Source—

Output—

Format—

File size—

Convert black and white, grayscale and sepia photos to natural-looking color

This online AI photo colorizer works as a black and white to color converter for old family photos, historical images, monochrome portraits, scanned prints and faded photographs. It combines estimated colour with the source image’s luminance detail so faces, edges, texture and film grain remain clearer in the downloadable colorized photo.

Automatic colour estimation

Recognises visual context and predicts believable colours for people, sky, landscapes, buildings, clothing and everyday objects.

Private local processing

The selected photo remains in the browser. No source image or generated result is uploaded by this tool for processing or storage.

Interactive comparison

Use a before-and-after slider to inspect faces, objects, edges and uncertain areas before saving the result.

Adjustable colour strength

Create subtle documentary colour, a balanced natural look or stronger saturation without re-running the entire model.

Detail-preserving finish

Retain the original luminance structure to avoid a soft, low-resolution appearance after the predicted colour is enlarged.

Flexible image downloads

Export PNG, JPEG or WebP with quality and maximum-dimension controls and a safe CorrectionCopy-prefixed filename.

How to colorize a black and white photo online

Follow the same workflow on a phone, tablet, laptop or desktop browser.

Choose a black and white photoSelect or drag a JPEG, PNG, WebP or supported AVIF image into the upload area.
Set the colour styleChoose colour strength, warmth and whether to preserve the original luminance detail.
Choose output settingsSelect PNG, JPEG or WebP, adjust quality when available, and keep the original dimensions or choose an optional maximum output dimension.
Colorize the photoStart local processing and keep the page open while the required colour model prepares and creates the result.
Compare and downloadMove the comparison slider, review uncertain colours, then download the CorrectionCopy-prefixed result.

Supported photo inputs and downloadable formats

The browser must be able to decode the selected source and encode the chosen output. Availability can differ by browser, operating system and device.

Format	Upload	Download	Important notes
JPEG / JPG	Yes	Yes	Widely compatible; output uses adjustable lossy compression.
PNG	Yes	Yes	Lossless output; files may be larger and transparency is preserved where applicable.
WebP	Yes	When supported	Efficient compression; availability depends on the browser encoder.
AVIF	When supported	No direct AVIF option	The browser must decode the input; export as PNG, JPEG or WebP.
GIF, SVG, HEIC, TIFF and RAW	No	No	Convert these files to JPEG, PNG, WebP or supported AVIF first.

Colour accuracy, photo restoration and historical limitations

What the result can do well

Add convincing colour to common portraits and outdoor scenes
Preserve source luminance, texture and photographic grain
Create a useful starting point for family archives and creative projects
Produce a new shareable image without altering the original

What the result cannot know

The real colour of a particular uniform, dress, car or building
Historically documented colours that are not visible in grayscale
Whether skin, hair or eye colour belongs to a specific person
Missing visual details hidden by damage, blur or overexposure

For historically important photographs

Treat the generated image as an interpretation. Keep the original scan, preserve archival records, compare documented references and label the result as colorized when publishing it.

For damaged or low-quality scans

Crop borders, correct rotation, improve exposure and remove severe stains before colorization. Scratches, tears and missing details require separate restoration work.

Private on-device photo colorization and safe file handling

Your photo stays local

Your files are protected and safe; we never collect or share your data. The selected image is read from your device, processed in browser memory and exported as a local download. No server-side photo processing or temporary upload directory is used.

External processing files

The page downloads the browser processing code and a large colour model after you start. Those requests do not contain the selected image, filename or generated photo. Network access is required when the files are not already cached.

Temporary browser resources

Preview URLs, canvases and generated image data exist only in the current browser tab. Resetting, replacing the photo or closing the page releases those temporary resources where supported.

Metadata and visible privacy

The new image does not intentionally copy embedded location or camera metadata. However, faces, addresses, signs, documents and landmarks visible in the picture can still reveal personal information.

Troubleshooting photo colorization, loading and downloads

The colour model does not load

Check the connection, disable network filtering for the page and retry. A hard refresh can clear an incomplete cached download. For the most reliable production deployment, host the required processing files and model on CorrectionCopy’s own domain.

The browser runs out of memory

Close other tabs, select a smaller maximum dimension, use a lower-resolution source or retry on a device with more available memory.

The result is too grey

Increase Colour Strength. Very faded images and unusual subjects may still receive limited colour when the model is uncertain.

The result is too saturated

Lower Colour Strength and return Warmth to neutral. Subtle settings are usually better for documentary and archival photographs.

Faces look soft

Keep Preserve original detail enabled and avoid enlarging a very small scan far beyond its source dimensions.

The download button is unavailable

Wait for a successful result. If export fails, choose PNG or JPEG, reduce the maximum dimension and process the photo again.

Frequently asked questions about black and white photo colorization

Answers about colour accuracy, privacy, supported images, local processing, performance and downloadable results.

What does an AI photo colorizer do?

A photo colorizer estimates plausible colours for a black and white image. It analyses visual patterns such as faces, clothing, sky, vegetation and objects, then creates a new colour version while keeping the original photo unchanged.

How do I colorize a black and white photo online?

Choose or drop a supported photo, review the preview, select colour strength and output settings, then choose Colorize Photo. Compare the result with the original and download the new image as PNG, JPG or WebP.

Are the generated colours historically accurate?

Not necessarily. The tool predicts believable colours from learned visual patterns, but it cannot know the true historical colours of clothes, vehicles, buildings or personal items. Use documented references when historical accuracy matters.

Are my photos uploaded to a server?

No photo content is uploaded by this tool. The selected image, processing and export remain in the browser. The page downloads the processing components and colour model, but your image is not sent with those requests.

Why is there a model download before the first result?

The colour model must be available on the device before local processing can begin. The browser downloads it once for the current session and may reuse its network cache later. The initial download is much larger than an ordinary page asset.

Which image formats can I upload?

The tool accepts JPEG, PNG, WebP and AVIF images when the browser can decode them. Animated images, SVG files and unsupported camera formats are not accepted. Format support can vary by browser and operating system.

Which formats can I download?

You can download PNG, JPEG or WebP when the browser supports that encoder. PNG is lossless and may be larger. JPEG and WebP provide adjustable quality and generally create smaller files.

Does colorization change the original photo?

No. The original file stays unchanged on your device. The tool creates a separate colourized copy for preview and download.

Can I colorize a sepia or faded photograph?

Yes. The tool converts the source to a neutral luminance image for analysis, so sepia and faded photographs can be processed. Strong stains, colour casts, scratches and severe fading may still affect the prediction.

Will faces and skin tones always look correct?

No. Skin, hair, eyes and clothing are estimates and may be uneven or incorrect, especially in damaged, low-resolution, overexposed or unusual photographs. Adjust colour strength or edit the downloaded result when needed.

Why are some areas left grey or given the wrong colour?

The model may be uncertain about small objects, uncommon materials, shadows, damaged regions or ambiguous scenes. Increasing colour strength can make colours more visible, but manual editing may be required for precise local corrections.

Does the tool restore scratches, blur or missing details?

No. It adds estimated colour but does not reconstruct missing faces, remove scratches, sharpen severe blur or repair torn areas. Use a dedicated restoration or image editor for those tasks.

What does Preserve original detail do?

This option uses the original image luminance as the fine-detail layer and applies the predicted colour over it. It usually keeps faces, texture, grain and edges sharper than simply enlarging the low-resolution model output.

Can I adjust how strong the colours look?

Yes. Colour Strength controls how much predicted colour is applied. Lower values create a restrained or partially colourized appearance, while higher values increase saturation and visual intensity.

Can I use the photo colorizer on Android, iPhone, iPad or desktop?

Yes, on current browsers with local file access, canvas export, WebAssembly and enough memory. Performance varies considerably by device. Older phones and memory-limited browsers may take longer or fail with very large photos.

Why does colorization take a long time?

The first run includes downloading and preparing a large on-device colour model. Processing speed then depends on the device processor, browser, available memory and image dimensions. Keep the page active while the browser completes local processing. The model analyses a compact working image, while the selected output can retain the original dimensions.

Is there a file-size or usage limit?

CorrectionCopy does not impose an artificial number of uses. Practical limits come from browser decoding, canvas dimensions, available memory and processing time. Very large files or extremely high pixel counts may need to be resized first.

Why is the downloaded file smaller or larger than the original?

The result is newly encoded using the selected format, quality and maximum dimensions. Compression, colour complexity and resizing can make it smaller or larger than the source even when the visible dimensions are similar.

Does the downloaded image keep the original metadata?

The colourized output is newly created from rendered pixels and does not intentionally copy the original EXIF, GPS, XMP or IPTC blocks. Browsers may still add basic structural information required by the image format.

Can I cancel a colorization?

You can cancel component or model loading and prevent an in-progress result from being displayed. Once device computation has already started, the underlying browser operation may need to finish internally before its resources are released.

Can I convert a grayscale image to color?

Yes. A grayscale, monochrome or black and white image can be processed as long as the browser can decode its JPEG, PNG, WebP or AVIF file. The result is an estimated color version that can be adjusted and downloaded separately.

What photos work best with an old photo colorizer?

Clear portraits, family photos, street scenes, landscapes and scanned prints with visible subjects usually work best. Heavy blur, missing detail, extreme fading, scratches and unusual historical objects can reduce color accuracy.