Free, open-source camera card offloading for Mac.
Copy to several drives, verify every file with SHA-256, and know exactly when the card is safe to erase.
A free, open source alternative to ShotPut Pro, Silverstack, and Hedge.
Download for Mac · Website · What's new · Guide · Report a problem
For indie filmmakers, YouTubers, photographers, and small productions that don't want a subscription just to copy files.
More screenshots
iPad: see what differs between two folders.
iPhone: the results for each destination, on a smaller screen.
Screenshots use sample data.
Signed and notarized macOS build on the Releases page, or with Homebrew:
brew install --cask bitmatchapp/tap/bitmatchSupports Apple Silicon and Intel Macs.
Requires macOS 15.5 or newer. For iPad and iPhone, build from source for now; they require iPadOS/iOS 18.5 or newer.
📷 Camera Card
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▼
BitMatch
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💾 A 💾 B
Plug in your card and drives, allow BitMatch to use them once, and it picks up the card as the source; you choose the destinations. Standard SHA-256 verification is the default, reading each destination drive itself; the card is only Safe to erase when every file on every destination is verified. Use One-time transfer for one card or Project transfer for a shoot with several cards and cameras.
- Multi destination copy with SHA-256 verification. Each destination gets its own results.
- Photographer jobs for shoots with several photographers, cameras, and cards. Save the setup instead of rebuilding it every time.
- Camera detection for Sony, Canon, ARRI, RED, Blackmagic, Panasonic, Fujifilm, GoPro, DJI, Insta360, and generic DCIM.
- Folder compare for stuff you already copied.
- PDF, CSV, and JSON reports for producers who want documentation, or you when you want to check what happened.
- Transfer queue and history on Mac, iPad, and iPhone. Interrupted attempts can be reviewed and retried.
- Optional SFTP backup on Mac for an off-site copy once the local one is verified.
| Mode | What it checks |
|---|---|
| Quick | Copy only; no checksum verification |
| Standard — default | SHA-256 |
| Thorough | SHA-256 and MD5 |
| Paranoid | Byte-by-byte comparison plus SHA-256 verification |
Quick means copy only; it does not prove the contents match.
This is beta software from a one-person project. I have not tested every camera, drive, filesystem, hub, or OS combination. Try it with disposable files first, keep the source card until every destination finishes cleanly, check the report, and keep another independent copy of anything you can't replace.
See the validation status and hardware testing procedure.
More detail (queue and recovery, ASC MHL, photographer jobs, SFTP, cards and drives, building and tests, FAQ): the guide.
PRs welcome. For anything big, start a thread in Discussions first so we can talk it through before you sink time into it. BitMatch is supposed to stay simple, and I'd hate for you to build something that doesn't fit.
Build both the Mac and iPad schemes before submitting. Not a coder? Testing on your own cameras, cards, readers, and drives helps just as much. So does telling me what confused you.
- Please do fork it, use it, improve it, credit me.
- Please don't slap it on the App Store unchanged and charge for it. I can't legally stop you, but it's lazy.
Built over a year of "I'll just add one more feature." MIT License, be a good person. See LICENSE for the legal text.