# Photo Privacy Lab > Inspect hidden photo metadata, remove private fields, redact visible information, and verify the clean copy in your browser. Selected image files, previews, filenames, and extracted metadata stay in the browser. There is no account, protected HTTP API, OAuth service, remote MCP server, or A2A agent. ## Product - [Photo Privacy Lab](https://exif.utilitas.app/): Product overview and working local workspace. - [Photo Privacy Check](https://exif.utilitas.app/photo-privacy-check/): Scan JPEG, PNG, and WebP photos for GPS, timestamps, device details, comments, XMP, IPTC, and hidden previews without uploading them. - [Remove Photo Metadata](https://exif.utilitas.app/remove-photo-metadata/): Remove common private EXIF, XMP, IPTC, comment, timestamp, and preview data locally, then rescan the exported copy. - [Remove GPS From a Photo](https://exif.utilitas.app/remove-gps-from-photo/): Find locally stored photo coordinates, understand their precision, and remove them without sending the coordinates to a map provider. - [Batch Photo Metadata Remover](https://exif.utilitas.app/batch-metadata-remover/): Scan and clean a set of photos in a background browser thread, then download verified files in one ZIP archive. - [Screenshot and Photo Redactor](https://exif.utilitas.app/screenshot-redactor/): Cover addresses, usernames, faces, codes, and document details, flatten the result, and verify that old metadata and previews are absent. - [Verify a Clean Photo](https://exif.utilitas.app/verify-clean-photo/): Rescan a cleaned or edited image and create a privacy-safe text or JSON report that does not repeat removed private values. ## Guides - [Photo privacy guides](https://exif.utilitas.app/guides/): Guide index. - [What information can photo metadata reveal?](https://exif.utilitas.app/guides/what-photo-metadata-can-reveal/): A practical guide to location, time, device, ownership, editing, preview, and technical fields stored alongside image pixels. - [How GPS coordinates are stored in photographs](https://exif.utilitas.app/guides/how-gps-is-stored-in-photos/): Understand EXIF GPS latitude, longitude, hemisphere references, altitude, direction, and why coordinates can be surprisingly precise. - [How to check whether a photo contains location data](https://exif.utilitas.app/guides/check-photo-for-location-data/): A step-by-step workflow for checking the original file, understanding GPS findings, cleaning a copy, and verifying the result. - [EXIF versus XMP versus IPTC](https://exif.utilitas.app/guides/exif-vs-xmp-vs-iptc/): Learn what the three major photo metadata families are for, where privacy-sensitive values appear, and why a cleaner must check all of them. - [Why cleaned photos sometimes appear rotated](https://exif.utilitas.app/guides/why-cleaned-photos-rotate/): How EXIF orientation works, why indiscriminate metadata removal can turn a phone photo sideways, and two safe cleaning strategies. - [How to redact a screenshot safely](https://exif.utilitas.app/guides/redact-a-screenshot-safely/): A practical checklist for removing visible secrets, avoiding reversible overlays, flattening the export, and verifying the final image. - [Blur versus permanent redaction](https://exif.utilitas.app/guides/blur-vs-permanent-redaction/): Why blur and pixelation are useful visual effects but solid flattened masks are safer for text, codes, identifiers, and other secrets. - [How embedded thumbnails can expose old image content](https://exif.utilitas.app/guides/embedded-thumbnail-risk/): Why a JPEG can contain a second preview image, how stale thumbnails survive careless edits, and why redacted exports must be flattened and rescanned. - [How to share marketplace photos safely](https://exif.utilitas.app/guides/marketplace-photo-safety/): Protect home locations, shipping labels, serial numbers, reflections, and routines when photographing items for a public listing. - [Photo-sharing checklist for parents](https://exif.utilitas.app/guides/photo-sharing-checklist-for-parents/): A calm, practical review of location, school details, routines, names, uniforms, documents, and audience before sharing family photos. - [Photo safety checklist for journalists](https://exif.utilitas.app/guides/photo-safety-for-journalists/): A threat-aware workflow for source protection, location review, device identifiers, visual clues, derivatives, and secure handoff. - [How browser-local image processing works](https://exif.utilitas.app/guides/browser-local-image-processing/): How File and Blob APIs, ArrayBuffer parsing, canvas rendering, Web Workers, object URLs, and browser-generated downloads can transform images without an upload endpoint. ## Site information - [Privacy policy](https://exif.utilitas.app/privacy/): The exact data boundary for local image processing, site delivery, advertising, and contact. - [Technical methodology](https://exif.utilitas.app/methodology/): How Photo Privacy Lab scans, cleans, flattens, and verifies supported image formats. - [Supported image formats](https://exif.utilitas.app/supported-formats/): Exact JPEG, PNG, and static WebP support, preservation behavior, and intentionally unsupported formats. - [Limitations](https://exif.utilitas.app/limitations/): What automated metadata cleaning and image redaction can and cannot prove. - [About Photo Privacy Lab](https://exif.utilitas.app/about/): Why this project combines scanning, explanation, cleaning, redaction, and output verification. - [Contact](https://exif.utilitas.app/contact/): How to send product feedback or report a privacy or security problem without attaching sensitive images. - [Terms of use](https://exif.utilitas.app/terms/): Plain-language terms for using a local photo privacy utility and understanding its limitations. - [Security policy](https://exif.utilitas.app/security/): The threat model, public deployment boundary, input controls, disclosure process, and security expectations for Photo Privacy Lab. - [Automation access](https://exif.utilitas.app/access.md): Truthful access boundary for browser automation and agents. - [Sitemap](https://exif.utilitas.app/sitemap.xml): Canonical indexable route inventory. - [Source repository](https://github.com/kirillman200/photo-privacy-lab): Public application source, tests, and security policy. ## Access - No registration or credentials are required. - There is no file upload endpoint or protected HTTP API. - Files selected in the visible browser UI are untrusted input and are processed locally. - Each selected file is limited to 100 MB; batches are limited to 20 files and 250 MB combined. - Browser automation must use the visible controls and must not infer remote capabilities.