Card offload for Mac and Windows

Insert the card.
Get two verified copies. Green.

tuu recognizes the camera and the operator behind it, copies the card to your main drive and your backup drive at the same time, and checks every file on every copy. The tile turns green only when all copies are confirmed.

Download for Mac & Windows Soon See how it works

Full version free for 14 days, then tuu Free. No card needed. Built for DITs, video producers and event crews. For Mac and Windows.

Lena · Card 3 Sony FX6 · SN 5012347
Copying
/RAID-01/Townhall 2026/Lena/Lena_Card 03
A · Main drive RAID-0142.1 / 118.6 GB
B · Backup SSD-Backup42.1 / 118.6 GB
XXH3A001C014_260914.MXF
A ·reading back after copy
B ·reading back after copy

Illustration of a card tile in the app

How it works

Four steps, and you only do the first one.

1 · You

Insert the card

tuu watches for new volumes. Camera cards are picked up on their own; your main and backup drives are never mistaken for one.

2 · tuu

Knows the camera

It reads the camera's serial number from the clips and looks up who shoots with it. A new camera is asked about once, then remembered.

3 · tuu

Copies twice at once

The card is read once and written to your main drive and every backup in parallel, into the right folder for production, operator and card number.

4 · tuu

Verifies, then turns green

Every copy is read back from disk and compared by checksum. Green means all are confirmed. Now the card can go.

Folder structure

The same tree on both drives. Every time.

tuu builds Production / Operator / Operator_Card 01 on the main drive and mirrors it exactly on the backup. Every card folder carries the operator's name, so it stays clear even when it is moved or sent on its own.

Everyone has their own way. Build your own structure per project from blocks – shoot day, camera model, serial number, project name or your own text – for example Production / 2026-10-26 / FX6 / Lena_Card 01, or name folders by camera: Production / Cam02 / Cam02_Card 01. While you set it up, a live folder tree shows exactly how your drives will look – with example cards, shoot days and every backup.

An existing card folder is never overwritten. If a folder name is already taken, tuu moves on to the next free card number.

Name / Card{name}/{name}_Card {card}
RAID-01/
└─ Townhall 2026/
   ├─ Lena/
   │  ├─ Lena_Card 01/   ✓ verified
   │  ├─ Lena_Card 02/   ✓ verified
   │  └─ Lena_Card 03/   ✓ verified
   └─ Nils/
      ├─ Nils_Card 01/   ✓ verified
      └─ Nils_Card 02/   ✓ verified

SSD-Backup/
└─ Townhall 2026/   identical
Safety rules

Rules tuu never breaks.

  • Green means every copy is verifiedNot copied, not mostly done. Every copy read back and matched.
  • Every copy on its own disktuu refuses a setup where two targets sit on the same physical drive.
  • Existing card folders are never overwrittenIf a folder name is already taken, tuu moves on to the next free card number.
  • Your drives are never treated as cardsMain and backup volumes are excluded from detection.
  • Space is checked firstA card that will not fit on every drive does not start copying.
  • Same card, same production: no second copyDuplicates are flagged by fingerprint instead of copied again.
Cameras and recorders

Made for the cards you actually shoot on.

tuu reads standard camera card layouts, the clip folders of cinema camera magazines, clip metadata and the Broadcast WAV metadata of audio recorders. Every file is copied and verified, whatever the format. Serial number support depends on what each model writes into its files.

ARRIALEXA 35, ALEXA Mini and Mini LF – ARRIRAW and ProRes in reel folders, each camera recognized by its camera ID
REDDigital magazines with RDM and RDC clip folders, R3D
SonyVENICE, XDCAM and XAVC – X-OCN, MXF and MP4 with XML sidecars
CanonCinema EOS and EOS, MP4, Cinema RAW Light (CRM), RMF, CR3
BlackmagicCameras and HyperDeck recorders, MOV and BRAW
GoProMP4 and LRV proxies
DJIDrones and gimbals, MP4 and MOV
Phantom and CodexCINE high-speed takes and Codex HDE (ARX)
Nikon and Insta360N-RAW (NEV) and INSV
Audio recordersSound Devices, Zoom, Tascam and more – Broadcast WAV with bext and iXML

Clip formats: MP4 · MOV · MXF · ARRIRAW (ARI) · ARX · R3D · BRAW · CRM · RMF · CINE · NEV · CinemaDNG · CR3 · INSV · LRV

Frame sequences such as ARRIRAW and CinemaDNG show up in the client report as one clip per folder, with their frame count.

Audio formats: WAV · BWF · RF64 · W64 · AIFF · FLAC · MP3

Features

Everything a card offload needs, and nothing you have to babysit.

DETECT

Automatic card detection

Plug in a card reader and tuu starts. Camera folder structures (DCIM, PRIVATE, CONTENTS, XDROOT, M4ROOT), clips in the card root and audio recorder cards with Broadcast WAV files are recognized.

IDENTIFY

Operator or camera, by serial number

Serial numbers come from clip metadata via exiftool or from Sony and Canon XML sidecars. Each camera is linked once to its operator, or to a camera name like Cam02 or FX6 if you prefer folders per camera. Audio recorders work the same way: model and serial from the WAV metadata, linked once to the sound mixer.

FALLBACK

Works without a serial, too

Recorders and drones that write no serial number are recognized by their folder and file pattern, such as a HyperDeck's device name.

COPY

Dual copy in one pass

One read of the card, one write per drive. Free space on every drive is checked before the first byte moves.

VERIFY

Checksums from disk, ASC MHL

Every file is hashed with XXH3 while copying, then both copies are read back from the drives and compared. Each card folder gets an ASC MHL manifest, the industry-standard chain of custody.

ORGANIZE

Your folder structure

Production, operator, card number – or your own layout per project from blocks like shoot day, camera model and serial, with a live folder tree as you build it. Numbering runs per operator and per production and continues where it left off.

PROJECTS

Every project at a glance

tuu opens on your projects, each with its own drives, cards, data and last backup. Insert a card on the overview and tuu asks which project it belongs to.

DUPLICATES

Knows a card it has seen

Each card gets a fingerprint. Insert the same card again in the same production and tuu tells you it is already backed up instead of copying it twice. Kept shooting on it without formatting? tuu spots the new clips and asks: only the new clips as the next card, or the whole card again. A verified card folder is never touched.

REPORT

Client report in three formats

A designed PDF report, saved straight from the app in one click (on Windows via your browser), plus an Excel sheet and a CSV. Proof for every card: verified copies, checksums, ASC MHL, paths and timestamps.

CLEAN

No system clutter

Hidden system files like .Spotlight-V100, .fseventsd, ._ files and Windows’ System Volume Information are left out of the copy and the fingerprint.

MULTI

As many backups as you need

Add a second or third backup drive. tuu writes every card to all of them in one pass and verifies each copy. Each drive must be its own disk.

SYNC

Backup sync for everything else

Someone drops graphics or audio into the production folder without tuu? tuu copies it to every backup and verifies it. Nothing on a backup is ever overwritten or deleted.

NOTIFY

Notifications

Turn them on when you set up a project. tuu tells you when a card is verified, a new camera needs an operator, or something goes wrong.

EJECT

Ejects the card when it's green

Turn it on and tuu ejects each card as soon as it's verified on the main drive and every backup. Pull it, format it in the camera, keep shooting. Cards saved without a backup stay mounted.

SPACE

Know how many cards still fit

tuu learns your average card size and shows how many more cards fit on the fullest drive, main or backup, before you run out on set.

RECHECK

Check drives months later

Check drive reads every file back and compares it with its ASC MHL checksum. Changed or missing files are listed, and every passed check is added to the MHL history.

ADD FOLDER

Footage that's already on a drive

Drop card folders or any data from another drive into tuu. Everything is copied to your main drive and every backup and verified like a card. An existing ASC MHL is checked file by file and its history continues.

CLIPS

Every clip in the report

Thumbnail, duration, resolution, frame rate, codec and timecode for each clip – for audio files sample rate, bit depth, channels and start timecode – card by card, in the PDF report and in an extra Excel sheet.

RUNTIME

Footage totals per operator

The report adds up the runtime of every card and every operator, so you know at a glance how much was shot today.

HANDOFF

Final Cut Pro, Premiere Pro and DaVinci Resolve

After each green card, tuu passes the clips on, sorted by operator and card: an event in Final Cut, an XML with bins and a sequence for Premiere and Resolve. Clips stay on the main drive. Included in the subscription, $29 (29 €) add-on for the license.

FRAME.IO · SOON

Straight to Frame.io

With the subscription, tuu will upload the clips of every verified card to your Frame.io project, in the same folder structure as on your drives, so the edit can start while you shoot. Every clip will carry operator, camera, card and verification as Frame.io metadata: filter by them in Frame.io, or ask an AI assistant connected to Frame.io for “all verified clips from Lena’s card 3”.

Client report

Hand over proof, not promises.

At the end of the shoot, export the log for your client. Every card, who shot it, on which camera, how much data, where every copy lives and when it was verified – by XXH3 checksum, with ASC MHL and, if you need them, MD5, SHA-1, SHA-256 or any other common checksum.

OperatorCardDeviceFilesSizeStartEndStatus
Lena1Sony FX6 · SN 50123473896.4 GB09:1209:31Verified
Lena2Sony FX6 · SN 501234741104.9 GB12:4713:08Verified
Nils1Canon EOS C70 · SN 03310072261.3 GB10:0510:17Verified
Nils2Blackmagic HyperDeck Studio Mini1177.4 MB17:3717:37Verified

Example data. The full report also lists folder, main path and backup path for every card.

What the report proves

VERIFIED

Verified means every copy matched

A card only shows Verified when every file was read back from the main drive and every backup and matched the card by checksum. A card saved without a backup or with an error is marked as such, never as verified.

COPIES

Every copy, every location

How many verified copies exist (2×, 3× …) and the exact folder on the main drive and on each backup, every one on a separate physical drive.

CHECKSUMS

A checksum for every file

The offload certificate next to each card folder lists every file with its size and XXH3 checksum, read back from disk with the cache bypassed. If a client or insurer asks for a specific checksum, add it: MD5, SHA-1, SHA-256, SHA-512, XXH32, XXH64, XXH128 or C4. tuu verifies every copy with it too, puts it on the certificate and in the ASC MHL where the standard has it, and saves a list such as .md5 or .sha256 next to the card folder.

ASC MHL

Industry-standard manifest

An ASC MHL v2.0 manifest in every card folder on every drive. Its C4 ID is printed on the certificate, so any later change to the manifest shows.

TRACE

Who, which camera, when

Operator or camera name, camera model and serial number, file count, size and the start and end time of every offload, card by card.

RE-CHECK

Check again, months later

Check drive compares every file with the ASC MHL checksums from the day of the shoot. Each passed check is added to the card's ASC MHL history.

PDF reportExcel .xlsxCSVASC MHL per cardOffload certificate per card
Editing handoff
Final Cut Pro · Premiere Pro · DaVinci Resolve

From green tile straight into your edit.

Turn on the handoff for your editing app and tuu passes every verified card on, already sorted by production, operator and card. Clips stay on your main drive, where tuu just verified them. Your editing app links to them instead of copying them a third time.

Included in the subscription. With the license, add it once for $29 (29 €).

Final Cut Pro opens by itself after each green card. Every card becomes its own event, and every clip is tagged with keywords for its operator and its card. You choose the library once.

Event per cardKeywords per operatorKeywords per card
Library: Townhall ├─ Townhall 2026 · Lena Card 01 event │ ├─ ⌗ Lena │ └─ ⌗ Lena · Card 1 38 clips ├─ Townhall 2026 · Lena Card 02 event │ ├─ ⌗ Lena │ └─ ⌗ Lena · Card 2 41 clips └─ Townhall 2026 · Nils Card 01 event ├─ ⌗ Nils └─ ⌗ Nils · Card 1 22 clips Media stays on RAID-01/Townhall 2026/
Picture and sound in sync

The sound mixer's audio, already under the picture.

Camera cards and sound cards arrive at different times, from different people. tuu matches them anyway: every clip finds its recording from the audio recorder, across all cards of the production, no matter which card comes in first.

Your editing app gets clips with picture, camera sound and recorder sound lined up. No new files are rendered, nothing is copied a third time – picture and sound stay the original files on your main drive.

Synced clips in Final Cut ProSync sequences in Premiere ProSync timelines in DaVinci Resolve0 new files

Part of the editing handoff: included in the subscription, or $29 (29 €) once with the license.

A001.MOV · Lena Card 01 · TC 10:00:12:08
T001.WAV · Tom Card 01 · Sound Devices 833 · TC 10:00:00:00
SYNCEDby timecode · offset −12.32 s · 0 new files
WAY 1 · TIMECODE

Matched by timecode

When camera and recorder share timecode, tuu compares the clip's start timecode with the recorder's (Broadcast WAV bext) on the same shoot day and picks the recording that covers the clip. Exact to the sample. Timecode tracks in MOV, MP4 and MXF are read directly.

WAY 2 · WAVEFORM

Matched by sound

No timecode on the camera, or none that matches? tuu listens instead: it compares the camera's scratch audio with every recording and finds the offset where both waveforms match, to about a millisecond. Only clear matches count, so a wrong guess never ends up in your edit.

Subscribers onlyiPhone · Apple Watch · coming soon

Your offload, on your wrist.

With the subscription, the free tuu app for iPhone and Apple Watch shows every card on every computer, live. You get a notification the moment a card turns green, or when something needs you.

  • Every card on every DIT cart, live
  • Notifications on iPhone and Apple Watch
  • Walk away from the cart, stay in the loop
Get notified at launch
Pricing

Start free. Subscribe for the best value.

Try every feature free for 14 days. After that, tuu keeps running as tuu Free, or unlock everything with a subscription or a one-time purchase. Both run on two computers, Mac or Windows, for example your editing station and your laptop on set. The subscription also includes the handoff to Final Cut Pro, Premiere Pro and DaVinci Resolve; with the license it is a $29 (29 €) add-on.

Launch offer: 25% off the license or your first subscription year with code METUU at checkout. Until December 31, 2026.

After the trial

tuu Free

$0forever

0 € in Europe

  • Detects camera and operator
  • Creates the folders
  • One copy to your main drive

No verification, no backups, no reports. Tiles never turn green.

Best value

tuu subscription

$89per year-25%

79 € a year in Europe

$7.42 a month, billed yearly
or $9.90 monthly (9.90 €)

  • All backup features
  • Final Cut Pro, Premiere Pro and DaVinci Resolve handoff
  • iPhone & Apple Watch app Subscribers only coming soon
  • All updates while subscribed
  • Cancel any time
Buy once

tuu license

$219once-25%

199 € in Europe

  • All backup features
  • 12 months of updates
  • Keeps working after that

Add-on: handoff to Final Cut Pro, Premiere Pro and DaVinci Resolve, $29 (29 €) once. More updates later: $49 (49 €) per year, optional.

Feature comparison of tuu Free, tuu subscription and tuu license
CompareFreeSubscriptionLicense
Offload
Detects camera and operator✓✓✓
Creates production, operator and card folders✓✓✓
Copy to your main drive✓✓✓
Notifications on your computer✓✓✓
Space forecast: how many cards still fit✓✓✓
Checksum verification (XXH3), read back from disk–✓✓
Backups to as many drives as you need–✓✓
Green tile when every copy is verified–✓✓
Knows cards already backed up–✓✓
Proof and handoff
ASC MHL per card–✓✓
Extra checksums: MD5, SHA-1, SHA-256, SHA-512, XXH32, XXH64, XXH128, C4–✓✓
Offload certificate per card–✓✓
Client report in PDF, Excel, CSV–✓✓
Backup sync for the production folder–✓✓
Handoff to Final Cut Pro, Premiere Pro and DaVinci Resolve–✓Add-on $29
Clip details, thumbnails and runtime in the report–✓✓
Check drive: re-verify backups against ASC MHL–✓✓
Frame.io upload–Coming soon–
iPhone & Apple Watch app (subscribers only)–Coming soon–
License
Updates–Always12 months, then $49/yr
Computers (Mac or Windows)Any22

Prices in US dollars; in Europe in euros. Checkout charges in your local currency. VAT or sales tax is added where required. Payment runs through our reseller Polar, who issues the invoice. How tuu compares to other offload tools.

FAQ

Questions crews ask.

What does "verified" mean exactly?

While copying, tuu computes an XXH3 checksum of every file on the card. After copying, it reads each file back from the main drive and from every backup and computes the checksum again. Only when all of them match for every file does the card turn green. If a client, insurer or archive asks for a specific checksum, pick it under Additional checksums in Settings: MD5, SHA-1, SHA-256, SHA-512, XXH32, XXH64, XXH128 or C4. tuu then checks every copy with it as well and saves a list such as .md5 or .sha256 next to each card folder.

Does tuu work for Netflix and studio productions?

tuu writes an ASC MHL v2.0 manifest into every card folder on every drive, with XXH3 checksums (plus MD5, SHA-1, XXH64, XXH128 or C4 if you turn them on) and a C4-identified chain file. ASC MHL is the format Netflix and major studios commonly ask for as proof of a verified offload. Next to each card folder, tuu also saves an offload certificate listing every file and its checksum. Check your production's delivery specs for their exact requirements. tuu is not affiliated with or endorsed by Netflix or the ASC.

How does tuu know who shot a card?

Most cameras write their serial number into the clips or into sidecar files. tuu reads it, and the first time it sees a camera it asks you which operator it belongs to. From then on every card from that camera goes to that person's folder automatically.

Can I name folders by camera instead of operator?

Yes. When you create a project (or later in Settings), set Name folders by to Camera. The first time tuu sees a camera, it asks for a camera name and suggests the next free number (Cam01, Cam02 …) or the model, e.g. FX6. Cards then go to Production › Cam02 › Cam02_Card 01, and the client report and the certificate label the column Camera. Existing folders stay as they are.

Can I set up my own folder structure?

Yes, per project. When you create a project, pick a preset or build your own from blocks: operator or camera name, card number, project name, shoot day, camera model and serial number, plus any text of your own. A slash starts a subfolder, so Production › 2026-10-26 › FX6 › Lena_Card 01 is as easy as the default Production › Lena › Lena_Card 01. A live folder tree shows the result on every drive before the first card. Card numbers keep counting per operator across the whole project, even with the date in the path.

Does tuu back up sound recorder cards?

Yes. Cards from audio recorders such as Sound Devices, Zoom or Tascam are recognized by their Broadcast WAV files (BWF with bext or iXML metadata). tuu reads the recorder model and serial number, asks once who records sound with it, and from then on sorts every card into that sound mixer's folder – copied to all drives, verified by checksum and listed in ASC MHL like any camera card. The report shows each audio file with sample rate, bit depth, channels and start timecode.

Can tuu sync the recorder's sound to the camera clips?

Yes, with the editing handoff. After each verified card, tuu matches video clips and audio recordings across all cards of the production – first by timecode (clip start timecode against the Broadcast WAV bext timecode, same shoot day), otherwise by comparing the camera's scratch audio with the recordings. Final Cut Pro gets synced clips, Premiere Pro and DaVinci Resolve get one sequence per clip with picture, camera sound and every recorder track. No new files are created; picture and sound stay the original files on your main drive. Clips without a clear match are left alone.

What about devices without a serial number?

Some recorders and drones write none. tuu then recognizes the device by its folder layout and file naming. ARRI cameras are told apart by the camera ID in every clip name. Two identical units of the same model without serial numbers cannot be told apart; assign those cards manually.

Is tuu an alternative to ShotPut Pro, Hedge OffShoot or Silverstack?

tuu does the core job of these offload tools: it copies camera cards to your main drive and several backups at once, verifies every copy by checksum and writes ASC MHL. On top, it recognizes the camera and the operator and sorts every card into the right folder by itself, and it starts free. tuu is independent and not affiliated with Imagine Products, Hedge or Pomfort.

Does tuu work with Final Cut Pro?

Yes. The handoff is included in the subscription and a $29 (29 €) add-on for the license. After each verified card, tuu creates an event for that card with keyword collections per operator and card, and links the clips on your main drive. Want one big event? Select the events in Final Cut and choose File › Merge Events. Final Cut asks once which library to use. BRAW and R3D footage needs the Blackmagic or RED plugin in Final Cut, as with any manual import.

Does tuu work with Premiere Pro or DaVinci Resolve?

Yes. The handoff is included in the subscription and a $29 (29 €) add-on for the license. Turn it on in Settings and tuu saves an XML for every verified card in Movies › tuu, with a bin per operator and card and a sequence of all clips. Import it in Premiere Pro (File › Import) or DaVinci Resolve (File › Import › Timeline). The clips stay on your main drive.

Can tuu back up footage that is already on a drive?

Yes. Use Add folder or drop folders into the tuu window. Card folders you saved earlier are handled like a card: tuu recognizes the camera, files them into your production and copies them to your main drive and every backup, verified. Any other data is copied as it is. If a folder already has an ASC MHL, even from another app, tuu checks every file against it and continues its history.

Can I check my backups again later?

Yes. Check drive reads every file on a drive or production back and compares it with the ASC MHL checksums tuu wrote when the card was saved. Changed or missing files are listed card by card, nothing is changed or deleted, and every passed check is recorded in the card's ASC MHL history.

Can my main and backup drive be the same disk?

No. Two folders on one disk are not a backup. tuu checks that the main drive and every backup sit on different physical drives and will not start otherwise.

What do I need to run it?

A Mac with macOS 11 or later, or a PC with Windows 10 or 11 (64-bit), and a card reader. tuu uses exiftool to read camera metadata; it comes with the app. The handoff to Final Cut Pro is Mac only; on Windows the client report opens in your browser, where you save it as PDF.

Does tuu format or erase my cards?

No. tuu only reads from the card. Formatting stays your decision, in the camera, after the tile is green.

Can I try tuu before buying?

Yes. tuu runs with every feature for 14 days from the first start, including the handoff to Final Cut Pro, Premiere Pro and DaVinci Resolve. No card, no sign-up. After the trial, tuu continues as tuu Free: it still detects the camera, creates the folders and copies each card once to your main drive, but without verification, backups, reports or ASC MHL. Enter a license any time to get everything back.

What is the difference between tuu Free and the full version?

tuu Free makes one plain copy to your main drive. It does not verify the copy, so its tiles never turn green. The full version copies to every backup, reads every copy back and checks it by checksum, writes ASC MHL and offload certificates, keeps your backups in sync, creates client reports and hands clips to Final Cut Pro.

How do I get support?

Email support@tuuapp.de. Tell us your computer (Mac or PC), the camera and what you see in tuu. The card log from tuu (CSV or Excel) helps us find the cause faster.

Coming soon

Stop babysitting progress bars. Wait for green.

tuu is in testing on real productions. The first public version follows after signing and notarization, with a free 14-day trial.

Download Soon
Merch

Two copies. One shirt.

25%off
until Nov 4

The tuu crew shirt (Stanley/Stella Creator) and hoodie (Spreadshirt Premium), both in organic cotton and printed on demand. The t² icon on the chest, a backup joke on the back. And a mug for the morning offload.

Front
Back
Organic cotton · shirt or hoodie

tuu copies

On the back: “one card. tuu copies.” The whole app in four words.

Order shirt or hoodie
Front
Back
Organic cotton · shirt or hoodie

me tuu

On the back, the drives talk. Target: “copied. verified.” Backup: “me tuu.”

Order shirt or hoodie
Panoramic mug · white with black handle

Coffee. Copy. Verify. Repeat.

The daily routine of every DIT on the back of the mug, the t² icon on the front.

Order mug

Organic cotton shirts by Stanley/Stella, premium organic hoodies by Spreadshirt and a panoramic mug, printed on demand and shipped by Spreadshirt. Sizes, colors, prices, payment and returns are handled in our Spreadshirt shop. Right now Spreadshirt takes 25% off every order, until November 4, 2026 (23:59 UTC). Not combinable with other codes.