Photo filters online on Android can be applied locally in a browser to JPG, PNG, or WebP files up to 25 MiB, with grayscale, sepia, invert, warm, cool, and original options.
This is a still-image workflow rather than a live camera or webcam filter. From the browser, select a photo already on the device, choose one transformation, set its strength, inspect the rendered result, and download a PNG. The Image Filter Effects page processes the image in the current browser tab; source pixels, filter choices, and result files are not posted to Lizely, and the source file stays unchanged.
The exported PNG keeps the source width and height and preserves every pixel's existing alpha value. It is intended for quick, clearly defined visual treatments rather than a large collection of unexplained presets. The Original option can also serve as a check of the local decode and export path.
Choose the effect before adjusting strength
Start with the visual change you want, then use the intensity setting to control how far the effect moves from the source. Each option operates on the red, green, and blue channels. Transparency is handled separately and remains unchanged by every filter.
| Effect | Defined behavior | What to check |
|---|---|---|
| Grayscale | Converts RGB using weights of 0.2126 for red, 0.7152 for green, and 0.0722 for blue. | Check text contrast and any meaning communicated through color. |
| Sepia | Applies the W3C three-by-three sepia color matrix. | Produces a brown-toned result, but it does not authenticate the image's age. |
| Invert | Replaces each RGB channel with its complement at full strength. | Review the legibility of text, faces, and graphics after inversion. |
| Warm | At full strength, adds up to 30 red levels and 10 green levels while subtracting up to 20 blue levels. | Use it as a creative warm shift, not as a measured white-balance correction. |
| Cool | At full strength, subtracts up to 20 red levels while adding up to 5 green levels and 30 blue levels. | Use it as a creative cool shift, not as a calibrated color-temperature adjustment. |
| Original | Leaves RGB values unchanged. | Useful for checking the local decode and export path. |
The grayscale calculation follows the W3C Filter Effects specification. Its coefficients make green contribute more to the resulting channel value than red or blue. Sepia uses the specification's three-by-three matrix, while full-strength invert substitutes the complement of each channel.
Intensity runs from 0% to 100%. At 0%, the transformed RGB channels equal the source channels; at 100%, the full effect is applied. For an intermediate setting, the tool calculates the full-strength target in floating point, blends it linearly with the source, and then rounds and clamps once to an 8-bit value. It does not round the full-strength target before blending. Alpha is not blended and remains unchanged. Warm and Cool are deliberately simple creative channel shifts; they do not calculate Kelvin values, camera white balance, ICC profiles, or chromatic adaptation.
Apply photo filters online on Android
Use the following sequence in the browser on an Android device:
- Open the tool in your Android browser and use its file picker to choose a local JPG, PNG, or WebP. Keep the compressed file at 25 MiB or less. After decoding, the image must be no more than 16 megapixels, with neither edge exceeding 12,000 pixels.
- Select Grayscale, Sepia, Invert, Warm, Cool, or Original. Choose the effect before generating the result so the preview reflects the intended channel transformation.
- Set the intensity from 0% to 100%. Start lower when you want a restrained change; use 100% only when the full defined effect is appropriate.
- Choose Apply filter. Processing does not start until this control is selected, so changing the effect or intensity alone does not create a new export.
- Wait for the PNG preview at the source image's original width and height. The page displays the selected effect, intensity, dimensions, file size, and result preview. Inspect important colors and transparent areas before continuing.
- Choose the download control and keep the generated PNG. The download name includes the chosen effect, while the output retains the source image's dimensions.
If you replace the file or change the settings, any older export is invalidated. Select Apply filter again to generate a result from the new choices. The downloaded PNG can then be used in another app, while the original file remains untouched.
What the browser changes locally
After Apply filter is selected, the source is decoded to an in-memory canvas. Its RGBA buffer is transformed with the selected function, and a new PNG Blob is created in the current browser tab. The webpage is accessed online, but the pixel transformation itself runs locally rather than being sent to Lizely for processing.
| Item | Result |
|---|---|
| Source file | Remains unchanged. |
| Dimensions | The output keeps the source width and height. |
| RGB channels | Change according to the selected effect and intensity. |
| Alpha channel | Every pixel's existing alpha value is preserved. |
| Output format | PNG, regardless of whether the source was JPG, PNG, or WebP. |
| Processing location | The current browser tab; no source pixels, filter selections, or result files are posted to Lizely. |
Transparent pixels remain transparent even though their hidden RGB values may be transformed. That differs from flattening an image onto an opaque background. If the browser cannot decode the selected file, the tool presents a clear error instead of producing a blank result.
Inspect the processed image before downloading
Review the full PNG preview rather than relying on the effect name alone. Filters can change readability, skin tones, brand colors, and the meaning of scientific or documentary images. A grayscale treatment does not automatically create strong text contrast, and a sepia treatment does not prove that a photograph is old. Warm and Cool may also move colors away from the appearance you intended, so compare the preview with the original.
PNG is used for the export because it preserves transparency and avoids making an implicit JPEG-quality decision. If the final delivery requires another format, convert the reviewed PNG separately after checking the filtered result. Do not treat the PNG preview as proof that a different format will look identical once lossy compression is applied.
For color-critical print, medical, scientific, archival, or professional photographic work, use a color-managed application with the required profiles and calibration. This browser workflow is a fast, local, explicitly defined pixel transformer rather than a calibrated color system.
Limits and unsupported editing tasks
The tool handles color transformations, not a full mobile photo-editing workflow. It does not crop, resize, rotate, sharpen, blur, denoise, detect faces, isolate subjects, or choose a filter automatically. It also begins with a selected still image rather than a live camera or webcam stream. Output dimensions therefore stay fixed in this workflow.
The 25 MiB file-size limit is measured before decoding, while the 16-megapixel and 12,000-pixel-per-edge limits apply to the decoded image. Decoded pixel buffers can occupy much more memory than the compressed file suggests. These limits protect browser memory and reduce long main-thread work, and an image outside the supported range cannot be processed as a valid input.
For an existing Android photo that needs a quick visual treatment, adjustable strength, preserved transparency, or same-dimension PNG output, the supported workflow is straightforward: choose a file, select an effect, set the intensity, apply the filter, inspect the preview, and download. Complex layout changes or color-critical editing require a different tool.
If you're weighing options, Image Too Large Photo: Flip or Compress? covers this in detail.