01
Metadata evidence
AICheck examines XMP, EXIF, PNG text, and filename patterns associated with known image-generation tools.
私密的设备端信号检查
免费 AI 检测器
本地信号检查
无需上传文件
在浏览器中运行 AICheck 元数据、水印和 C2PA 证据检查。结果会给出数字证据置信分，但不能作为确定结论或真实性证明。
Drop an image here, or choose a file
PNG, JPEG, or WebP · maximum 20 MB · you can also paste an image
Checking supported file signals…
This work happens locally in your browser.
01 Validate the image file signature
02 Run AICheck metadata detectors
03 Verify embedded C2PA credentials locally
04 Run AICheck pixel detectors
Local signal report
Evidence confidence score
0/100
AICheck grade: None
Calculating…
No specific generation source identified
Preview views are exploratory only and do not affect the evidence score.
Evidence found by AICheck
Detection uses SugarCube's browser adaptation of MatrixA/aicheck. The modified source, change record, and full license are available below under AGPL-3.0-or-later.
SugarCube adapter source and modifications MatrixA/aicheck upstream source Full AGPL-3.0 license
What this local check actually examines
The check uses a small, explainable set of file clues. Each clue has limits, so uncertainty stays visible.
02
C2PA credentials
The official browser SDK parses embedded manifests and validates their assertions locally. Invalid status is shown as a warning, not AI evidence.
03
Pixel patterns
AICheck's image-only watermark detectors examine pixel patterns. Heuristic findings can be wrong and never prove origin by themselves.
How to interpret the result
Use this report to guide a closer look, not to make a high-stakes authenticity decision.
| Question | What this check can say | What it cannot say |
|---|---|---|
| Image handling | The selected file is read in this browser tab. | The image is not uploaded for a server or model analysis. |
| Score inputs | AICheck combines provenance, metadata, filename, and pixel-pattern evidence. | The score is an evidence scale, not a statistical probability, and does not measure how much of an image is AI-generated. |
| No evidence | No currently supported evidence was found. | It does not prove the image is authentic, original, or camera-made. |
| Important decisions | Check the original source, publishing context, and provenance. | Do not rely on this automated report alone. |
AI image signal check FAQ
Does SugarCube upload my image?
No. This page reads the selected file in your browser and does not send its image contents to SugarCube.
Can a low score prove an image is real?
No. A low score only means this check found weak or no currently supported evidence.
Does this verify C2PA Content Credentials?
Yes, when an embedded manifest is present. The official C2PA browser SDK parses and validates it locally; validation warnings are shown separately.
Do the color and edge views detect AI generation?
No. They are local visual aids and do not contribute to the evidence score.