Doppel
Doppel is associated with a repository now renamed File Foundry, whose release notes identify the published app as com.junowoz.filefoundry.
What Doppel is
Doppel is associated with a repository now renamed File Foundry, whose release notes identify the published app as com.junowoz.filefoundry. The described native Apple Silicon macOS utility combines exact duplicate finding, media organization, and file conversion. Duplicate Finder verifies byte-for-byte matches and moves selected copies to Trash instead of permanently deleting them. Media Organizer scans folders you select, plans a dated library, and creates verified copies while preserving originals. Converter processes video, audio, and image files through a local FFmpeg executable, offering presets, command previews, cancellation, and overwrite refusal. The app has no login, analytics, telemetry, tracking, or external SDKs, and accesses only selected files and folders. Builds are arm64-only and require macOS 14 or later. Converter requires local FFmpeg installation, with brew install ffmpeg listed. The repository provides DMG and ZIP installation options.
Good
- Byte-by-byte duplicate verification
- Selected duplicates move to Trash
- Original media remains preserved
- Local FFmpeg conversion workflow
- No login, analytics, or telemetry
Watch out
- Requires macOS 14 or later
- Available builds are arm64 only
- Converter requires separate FFmpeg installation
- Updater contacts GitHub only after requested checks
Who it suits
File Foundry suits Apple Silicon Mac users who want local duplicate cleanup, media-library organization, and FFmpeg-based conversion. It is also relevant to users prioritizing no-login, no-telemetry operation.
Verdict
File Foundry presents a local-first set of file tools with cautious duplicate handling and flexible media conversion. Its Apple Silicon and macOS 14 requirements, plus the separate FFmpeg dependency, define the setup.
The facts
Each one read from Doppel's own pages, with the date it was checked.
Where it runs
- Browser support
- ChatGPT browser control uses a browser extension with native-messaging registration for Chromium browsers; instances can share one browser and its tabs.checked 11 Oct 2026
- Distinct app identity
- Each instance is a real app bundle with its own bundle identifier, so macOS treats it as a separate app.checked 11 Oct 2026
- Platform requirement
- Available builds are arm64 only and require macOS 14 or later.checked 11 Oct 2026
What it does
- Current status
- The Doppel repository was renamed to File Foundry, and the release notes say its published identity changed from Doppel to com.junowoz.filefoundry.checked 11 Oct 2026
- Data removal
- Removing an instance keeps its account data unless purge is requested; purge moves eligible data to the Trash and refuses protected or shared paths.checked 11 Oct 2026
- Downloads
- The repository lists a drag to Applications DMG installer and an app bundle ZIP for manual installs or in app updates.checked 11 Oct 2026
- Duplicate detection
- Duplicate Finder verifies exact duplicates byte for byte and moves selected copies to Trash without permanently deleting files.checked 11 Oct 2026
- FFmpeg requirement
- Using Converter requires FFmpeg installed locally, and the page gives brew install ffmpeg as the install command.checked 11 Oct 2026
- File conversion
- Converter handles video, audio, and image files through a local FFmpeg executable with presets, command preview, cancellation, and overwrite refusal.checked 11 Oct 2026
- Instance management
- The menu bar app can create, launch, rebuild, rename, recolor, and remove instances, and toggle Start at Login.checked 11 Oct 2026
- Integrations
- The documented remote workflow uses Codex for iPhone and SSH; Meshnet can provide a private network address, but Doppel does not install a VPN or configure internet routing.checked 11 Oct 2026
- Intended use
- The maker describes Doppel as local and for personal use, advises against redistributing a built instance, and says it is not affiliated with or endorsed by OpenAI.checked 11 Oct 2026
- Local cloning
- Each instance is generated on the user’s Mac from their installed ChatGPT app; the project says it ships no vendor code.checked 11 Oct 2026
- Media organization
- Media Organizer scans selected media folders, plans a dated library, and creates verified copies while preserving originals.checked 11 Oct 2026
- No integrations listed
- The repository identifies local FFmpeg as a dependency but lists no external product integrations.checked 11 Oct 2026
- Privacy
- The app has no login, analytics, telemetry, tracking, or external SDKs and accesses only folders and files selected by the user.checked 11 Oct 2026
- Purpose
- Doppel creates separate ChatGPT desktop app instances with distinct accounts, data directories, names, and icons.checked 11 Oct 2026
- Remote access
- Doppel 2.0 beta supports connecting from the Codex iPhone app to a profile’s Mac listener using SSH and a private key.checked 11 Oct 2026
- Remote access limits
- Remote access requires the Mac to stay awake with the user logged in, and account separation is not an operating-system sandbox.checked 11 Oct 2026
- Security controls
- Doppel verifies OpenAI update signatures, and its own app updates are checked through a signed GitHub appcast using an embedded EdDSA public key.checked 11 Oct 2026
- Security limits
- The project describes its protection boundary as the user account rather than the operating system, and says it is intended to protect against accidents and drift, not local malware.checked 11 Oct 2026
- Shared data
- Isolation covers the Electron profile and CODEX_HOME, while notification and service app-group containers remain shared between instances and the primary app.checked 11 Oct 2026
The company
- Maker
- The maker's GitHub profile describes Doppel as an open source, local first exact duplicate finder for Apple Silicon macOS with safe Trash cleanup and no login or telemetry.checked 11 Oct 2026
- Maker location
- The maker's GitHub profile lists Brazil.checked 11 Oct 2026
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