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jayb.it bit by bit
🍎 macOS β€’ Closed Beta β€’ Jaybit Copy

Copy your cards and cameras to disk.
Checksum-verified, never duplicated.

A macOS app for offloading SD cards, cameras, drones, action cams, and USB drives to your disk. Every copied file is checksum-verified, and cards you've already imported are recognized automatically so nothing is copied twice.

πŸ§ͺ In closed beta on macOS (Apple Silicon). Version 1.0 follows once the beta wraps up.

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Checksum Verification

Every copied file is verified against its source with a checksum (BLAKE3, XxHash3, SHA-256, or CRC32) before it's marked as done.

πŸ—‚οΈ

Recognizes Your Cards

Identifies cards and cameras it has seen before by hardware identity and file hash, so already-copied content isn't re-imported.

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Source Left Untouched Until Verified

Nothing is removed from the card until every destination copy has passed its checksum check β€” clearing space is always optional and manual.

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No Account, No Cloud

Runs entirely on your Mac. No sign-up, no upload β€” files go straight from card to disk.

Smart Import & Smart Copy

Designed from the ground up for photographers, video creators, drone operators, and anyone who needs a reliable file transfer with checksums to back it up.

01. DASHBOARD & HARDWARE DETECTION

Plug in a card β€” see everything in an instant

Jaybit Copy automatically detects connected SD readers, USB drives, cameras, action cams (GoPro, DJI), drones, and audio players based on their hardware identity.

  • Media breakdown into Photos / Video / Audio on clear device cards.
  • Single-click Import All button for full card offloading.
  • Quick preview of the last 5 tasks with direct access to full History.
Jaybit Copy Dashboard showing connected devices
02. SMART IMPORT

Intelligent status filtering & 5 clear file states

The thumbnail grid with filter tabs lets you examine your files before transferring. The app accurately distinguishes between already imported files and missing target copies.

Status Meaning
New File has never been imported from this device before.
Duplicate Identical content already exists in the destination folder.
Imported File was previously copied successfully.
Missing Copy History records import, but target copy was deleted manually.
Import screen with thumbnail grid and settings
03. NAMING TEMPLATES

Your custom folder hierarchy built from metadata blocks

Stop manually creating `2026-08-11_Wedding` directories. Build reusable templates once, and Jaybit Copy automatically organizes your files.

{Year}-{Month}-{Day} {CameraModel} {Lens} {ISO} {VideoResolution} {FPS} {AudioArtist} {DeviceName}
  • Separate templates for Photos, Video, and Audio.
  • Save naming presets under custom names for easy reuse.
  • Optional "Delete from source after verification" toggle to free SD space safely.
Selecting default destination folder
04. INTEGRITY & CONFLICT RESOLUTION

Pause, automatic retries & smart conflict handling

Transferring 128 GB of footage doesn't have to be stressful. Corrupted card sectors are retried automatically without breaking the entire queue.

  • Checksum algorithms: BLAKE3 (recommended, ultra-fast), XxHash3, SHA-256, CRC32.
  • Conflict resolution: Overwrite / Skip / Rename / Overwrite if newer with "Apply to all".
  • Preserves original creation and modification file timestamps.
File name conflict resolution panel
05. LIVE QUEUE

Real-time progress & post-import reports

Track active transfers: live MB/s speed, completed/failed counter, and exact estimated completion time (e.g., 14:32 completion, not just "5 mins left").

  • Export comprehensive reports (HTML / CSV / TXT).
  • Test button β€” re-verify copied files on target disk using checksums.
  • Unified conflict banner collecting file prompts in one place.
Active transfer queue showing live progress
06. PROFILES & AUTO-IMPORT

Automation for trusted hardware

Assign a custom profile to any SD card or camera. Turn on Auto-import, and the copy process starts automatically as soon as the card is inserted!

  • Smart Copy β€” folder-to-folder copying mode with missing file synchronization.
  • Full History log with single-file retry capability.
  • System menu bar / tray icons with live task status.
Device profiles and auto-import settings
07. SMART COPY (FOLDER TO FOLDER)

Fast folder-to-folder synchronization

Need to sync project files or backups between two SSDs? Smart Copy compares source and target directory structures, copying only missing or modified files.

  • Choose "Copy All" or "Sync Missing Files".
  • Preserves original file timestamps and metadata.
  • Optionally generates checksum manifest files right in the target directory.
Smart Copy comparing source and target directories
08. PRIVACY & DIAGNOSTICS

Full transparency β€” telemetry you control

We respect your privacy. The app never sends your file contents, file names or paths β€” ever. It reports anonymous crash diagnostics and transfer summaries so we can fix what actually breaks; a persistent installation identifier is attached only if you opt in. Everything can be switched off in Settings β†’ Diagnostics. If you hit a problem, the built-in diagnostic report generator lets you preview every character before sending.

  • App Sandbox on macOS (full system security compliance).
  • Optionally attach up to 3 screenshots to report submissions.
  • All application history and config stored in a single local database file on your disk.
Diagnostic report window with full content preview

Application Settings Overview

Seven focused tabs providing total control over app behavior and transfer parameters.

βš™οΈ General
Theme (Light/Dark/System), Language (EN, PL, ES, DE, FR, JA), autostart, menu bar icon mode, and native notification settings.
⚑ Copying
Checksum algorithm selection, buffer size adjustment, and default conflict resolution actions.
πŸ“‚ Import
Default folder templates, automatic duplicate skipping, RAW+JPG grouping, and post-verification source cleaning.
⏏️ After Completion
Automatic SD/USB volume ejection, post-task power actions (Sleep / Shutdown), and custom post-import executable scripts.
πŸ”§ Advanced
Database path location, full config export/import (backup), and checksum manifest generation.
🩺 Diagnostics
Debug logging mode, diagnostic bundle export, log folder access, plus telemetry controls and your installation identifier.
πŸ”‘ License
License key activation, trial period status, offline operation, and device license transfer.