BitMatch

A free, open source alternative to ShotPut Pro, Silverstack, and Hedge. Offload camera cards to multiple drives, verify every byte with SHA-256, generate reports. For indie filmmakers, YouTubers, and small productions that don't want a $300/year subscription to copy files.

Download

Signed and notarized macOS build on the Releases page.

Requires macOS 15.5 or newer. For iPad, build from source (see below).

How It Works

📷 Camera Card
       │
       ▼
   BitMatch
    │    │
    ▼    ▼
  💾 A   💾 B

Plug in your card and drives. BitMatch figures out which is which (1TB+ are destinations, 512GB and under are sources). Hit copy. It writes to both backups at once, verifies with checksums, and generates a report.

What It Does

• Multi destination copy with SHA-256 verification
• Four verification modes: Quick (copy only, no checksum verification), Standard (SHA-256, the default), Thorough (multiple checksums), Paranoid (byte by byte plus MHL files)
• Camera detection for Sony, Canon, ARRI, RED, Blackmagic, Panasonic, Fujifilm, GoPro, DJI, Insta360, generic DCIM. Names backup folders after the camera. Autosorts A/B/C
• Folder compare for stuff you already copied
• PDF reports for producers who want documentation
• Safe by default: never modifies the source, never overwrites destination conflicts, copies through temp files and verifies by default with SHA-256

Why It's Safe (probably)

• 🚫 No cloud, no servers, no uploads
• 🔒 Verification happens locally
• ✅ Source card is never modified
• 🛑 Existing destination files are never overwritten. In checksum modes, matching files can be reused only after local verification
• 📁 Hidden files and empty folders included (camera sidecar data matters)

Heads up though. I think it's safe. I've used it on my own jobs. But I haven't shot every camera on every drive on every macOS version, and this is a one person project. It's open source so you can read the code and decide for yourself. Test it on throwaway files first. Don't trust irreplaceable footage to it until you've shaken it out on a few jobs.

Who It's For

YouTube creators, short film folks, web commercials, Instagram ads, anyone who doesn't want to pay $300/year to copy files.

Not for big budget shows or union shoots with a full DIT cart. Use the enterprise tools, you can afford them.

License (MIT, but read this)

MIT licensed, do what you want. The spirit:

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. If you redistribute commercially, actually do something with it.

I might eventually put a compiled version on the App Store for the price of a coffee. Source stays here either way.

Building

Requirements: Xcode 16+, macOS 15.5+ for the Mac app. The iPad target currently builds for iPadOS 18.5+.

1. Open BitMatch.xcodeproj
2. Pick the BitMatch scheme for Mac or BitMatch-iPad for iOS
3. For iOS, set your development team in Signing and Capabilities
4. Build and run

Tests:

bash test.sh

FAQ

Does it generate MHL files? Yes, in Paranoid mode.

Will it work with my camera? Probably. I personally shoot Sony, so that's the path I've beaten on. The other brands should work. Open an issue if they don't.

Does it work on iPad? Yes. It uses the Files app for external SSDs.

Why open source? So you can trust it. The code is here. Read it before you trust your footage to it.

Contributing

PRs welcome. If you contribute, build both the Mac and iPad schemes before submitting. Shared code means changes can break one platform silently.

---

Built over six months of "I'll just add one more feature." MIT License, be a good person. See LICENSE for the legal text.