Tech riderRev. 19 Sept 2026
  1. 1Runs onMac
  2. 2Platform coveragemacos
  3. 3Scan locationsUser-selected folders and nested subfolders
  4. 4Match methodsFile size, SHA-256, byte-by-byte comparison, filename, media duration, file kind, and file extension
  5. 5File previewYes
  6. 6Automatic selectionYes
  7. 7Recycle Bin / TrashYes
7 lines stated Written from the maker's own pages: github.com
The Doppel homepage

Overview

Doppel is ranked #38 of 38 in duplicate file finders on Specifiction. It runs on macOS.

Compared on duplicate file finders

Platform coverage
macosgithub.com
Scan locations
User-selected folders and nested subfoldersgithub.com
Match methods
File size, SHA-256, byte-by-byte comparison, filename, media duration, file kind, and file extensiongithub.com
File preview
Yesgithub.com
Automatic selection
Yesgithub.com
Recycle Bin / Trash
Yesgithub.com

Facts

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.github.com · 11 Oct 2026
What it does
File Foundry is a native Apple Silicon macOS app with local first tools for finding exact duplicates, organizing media, and converting files with FFmpeg.github.com · 11 Oct 2026
Duplicate detection
Duplicate Finder verifies exact duplicates byte for byte and moves selected copies to Trash without permanently deleting files.github.com · 11 Oct 2026
Media organization
Media Organizer scans selected media folders, plans a dated library, and creates verified copies while preserving originals.github.com · 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.github.com · 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.github.com · 11 Oct 2026
Update network access
The updater contacts GitHub Releases only after the user explicitly asks to check for updates.github.com · 11 Oct 2026
Platform requirement
Available builds are arm64 only and require macOS 14 or later.github.com · 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.github.com · 11 Oct 2026
FFmpeg requirement
Using Converter requires FFmpeg installed locally, and the page gives brew install ffmpeg as the install command.github.com · 11 Oct 2026
No integrations listed
The repository identifies local FFmpeg as a dependency but lists no external product integrations.github.com · 11 Oct 2026
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.github.com · 11 Oct 2026
Maker location
The maker's GitHub profile lists Brazil.github.com · 11 Oct 2026

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Sources