metadata-removal
6 cases: 1 pass, 4 partial, 1 rejected, 0 failed, 0 unsupported.
Empirical research & benchmarks
Privacy labs: these pages measure files, not a universal app rule
Reproducible tests of browser-based privacy and creator tools. We publish our test protocols, controlled datasets, and exact failure rates where available.
Do these lab pages measure an app’s upload, or the EXIF and GPS inside a file on this device?
These lab pages measure EXIF, GPS, and provenance marks in files. They do not treat every app as the same behavior. One page’s comparison does not become another app’s rule. Clean the copy in this browser before sending. The file stays on this device and is not uploaded to this site.
Active Research
Published benchmark suites: 2 active · Platform lab tests: 17 tracked
Featured Empirical Benchmarks
Release v1.0
Tested: September 20, 2026
OCR benchmark: which fixture languages passed key fields in September 2026?
Evaluates in-browser Tesseract.js 5.1.1 across 10 controlled multilingual document scenes (Latin, CJK, Devanagari, Arabic). German printed text passed (100% key fields); photographed scene text in Arabic and Hindi failed. Includes character error rates (CER), numeric exactness, failure taxonomy, and raw downloadable JSON/CSV datasets.
Fixtures
10 scenes
Passed
1 / 10
Mean Key Fields
54.1%
Numeric Exact
60.8%
Release v1.0
Tested: September 23, 2026
Metadata Removal Product & Engine Benchmark
Evaluates client-side metadata sanitization across 8 controlled fixtures. Dual execution path: browser product UI for images and documents, plus engine-only regression tests for video container atoms. Documents honest boundaries: 6 PASS (4 browser product + 2 engine-only video regression), 2 PARTIAL (PDF visible page text and JPEG pixel watermark limitations), and zero cloud upload.
Fixtures
8 fixtures
Passed
6 / 8
Partial
2 (limitations)
Failed
0
Browser tool reports
Captured . Counts are the cases published on each report.
Method: actual-browser-product
video-compression
1 cases: 1 pass, 0 partial, 0 rejected, 0 failed, 0 unsupported.
video-upscaling
2 cases: 1 pass, 1 partial, 0 rejected, 0 failed, 0 unsupported.
Platform Privacy & Metadata Inspections
View category →Controlled checks of what metadata survives an upload, export, or AI-image download on social and creator platforms.
The index exists so a JPEG question does not get answered with a Telegram button, and a missing C2PA read does not get called a camera proof.
Integrity Policy
Direct answer: start with the file you are about to send. One page’s comparison does not become another app’s rule.
- How the pages split: Format pages say where fields live. Platform pages describe that send path. Provenance pages say what a hit or a miss can mean.
- What that does not prove: Viewer and cleaner comparisons show whether a field can come off before the file leaves the device.
- What you can do first: Clean the copy in this browser before the file leaves the device. Nothing is uploaded to this site.
🟢 Measured on this machine · Checked November 2026 · Local JPEG and PNG samples
Discord Image Metadata
local sampleThe 2026-11-01 page records the local viewer and cleaner. A Discord upload was not part of that run.
View protocol & test details →Telegram Image Metadata
local sampleThe 2026-11-01 page records the local viewer and cleaner. A Telegram upload was not part of that run.
View protocol & test details →See also: Labs platform methodology and Platform guides hub.
Cite this benchmark
Empirical research published by Privacy labs: these pages measure files, not a universal app rule is freely citeable with attribution under CC BY 4.0.
APA / Text Format
Privacy labs: these pages measure files, not a universal app rule. (2026). Privacy labs: these pages measure files, not a universal app rule Research & Benchmark Infrastructure (Version 1.0) [Data set]. CreatorPrivacyKit. https://creatorprivacykit.com/labs/View BibTeX entry
@misc{creatorprivacykit_2026_ocr_benchmark,
title = {Privacy labs: these pages measure files, not a universal app rule Research & Benchmark Infrastructure},
author = {{Privacy labs: these pages measure files, not a universal app rule}},
year = {2026},
version = {1.0},
howpublished = {\url{https://creatorprivacykit.com/labs/}},
note = {Tested 2026-09-20. In-browser Tesseract.js 5.1.1 multilingual evaluation}
}