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Interchangerfor Mac and Windows
Interchanger moves full sessions between Pro Tools (.ptx), REAPER (.rpp), Cubase (.cpr) and Nuendo (.npr), any format to any other.
Trial converts like the full version, limited to 2 minutes from the first clip on the timeline. $199 — introductory price, will rise to $399.
Also in the Mac App Store and the Microsoft Store. Spot, Import PTX and adding your own plug-ins are only in the Mac Direct version download.
Pick a .ptx, .rpp, .cpr or .npr file. The format is detected automatically, with no Pro Tools, REAPER, Cubase or Nuendo installation required. Then choose the target.
Review session stats, format incompatibilities and missing audio. Relink files before converting.
Click Convert and open the new session in the target DAW. The report lists anything that didn't transfer.
Surround panning up to 7.1.2, panner automation, sends, routing, groups, and VCA faders and track groups within the destination's controls.
Clips, clip gain and its envelopes, fades and crossfades with shape mapping, markers, the video track.
Multi-point tempo maps and meter, musical (tick-based) tempo, and MIDI with its notes and controllers.
It reads and writes the DAWs' native session files directly. There's no DAW to install or license for the conversion, and no Wine, CrossOver or emulation. A native app on Mac and on Windows 11.
The Track Data filter lets you leave things behind on purpose: automation, playlists, markers, clip gain, colours.
Link to source media and reference files where they are, or Copy media into a self-contained bundle to hand over.
Pro Tools Playlists become REAPER Takes & Lanes and Cubase / Nuendo Track Versions & Lanes, and back again.
Every edition · Beta
Supported plug-ins are placed on the destination track. Where supported, their settings and automation transfer too, along with bypass, inactive states and side-chain routing.
Beta
Built-in assistants let you add plug-ins and create mappings for conversion.
The app does the whole conversion on its own. The Mac Direct download also includes two optional extensions that live inside REAPER. They are not in the Mac App Store or Windows editions.
REAPER extension
Spot the clips you selected straight into the other running DAW, both ways. Both apps open, no export, no file dialog. Clips arrive with clip gain, automation and fades; the destination routing stays untouched.
"Spot from Pro Tools" saves your open Pro Tools session before reading it.
REAPER extension
Open a .ptx straight into REAPER, without exporting an .rpp from the app first. Requires macOS 26 or later.
Read and write support for all four formats. The report covers your own session.
Any of the four formats converts to any other: Pro Tools ↔ Reaper ↔ Cubase ↔ Nuendo. Hover or tap the i on any row for the detail behind it.
| Feature | Pro Tools | Reaper | Cubase | Nuendo |
|---|---|---|---|---|
| Session sample rate / bit depthiSession sample rate drives media resampling on every write path. | RW | RW | RW | RW |
| Frame rateiMapped between each DAW's rate tables. | RW | RW | RW | RW |
| Session start timecodeiSession start timecode converts between all four formats, including NTSC pull-down rates (23.976 / 29.97 / drop / 59.94), so positions match frame-exactly. | RW | RW | RW | RW |
| Tempo map (multi-point)iThe full tempo map, not just the first tempo, including ramps where the target supports them. | RW | RW | RW | RW |
| Time signaturesiBar-anchored meter changes. | RW | RW | RW | RW |
| MarkersiNames, positions and supported colours transfer; target palette mapping can change exact colours. Musical (Bars|Beats) marker timebase and range/selection markers are now preserved where the target supports them. PT Memory Locations cap at 999. | RW | RW | RW⚠ | RW⚠ |
| Video track + clipsiNow reads and writes video across all four formats, including .cpr/.npr, including several video sources and switching the active video track or playlist. Up to two video tracks transfer to Cubase/Nuendo, with supported Track Versions retained; additional tracks are left out; offline video keeps its declared path. Video links by absolute path (their pool convention); Standalone + “Copy video files” copies into the bundle. A mixed audio + video Reaper track splits cleanly into separate Video and Audio tracks. | RW | RW | RW⚠ | RW⚠ |
| Feature | Pro Tools | Reaper | Cubase | Nuendo |
|---|---|---|---|---|
| Audio tracks + formatsiUp to 7.1.2. Both targets get genuine 7.1 / 7.0.2 / 7.1.2 bus + panner chains; Cubase 10/11 display height formats as 5.1 (data preserved, native from Cubase Pro 12; Nuendo throughout). | RW | RW | RW⚠ | RW |
| Summing groupsiCubase Group Channels ↔ PT Routing Folders / summing Auxes ↔ Reaper folder buses. Group width taken from the source bus format; routing follows. Cubase/Nuendo Groups also nest the tracks routed to them inside a Reaper folder (Group-into-Group → nested folders). | RW | RW | RW | RW |
| FX-return tracksiSend-fed buses are detected as FX returns; the destination Group or FX type is chosen for the source routing role, and native UI types can differ between DAWs. | RW | RW | RW⚠ | RW⚠ |
| Output buses (surround & hardware)iCreated in Audio Connections with correct widths, main mix selected; ports arrive Not Connected (device names are machine-local). | RW | RW | RW | RW |
| Track sendsiLevel / pan / pre-post / on-off; PT slots A–J, Cubase/Nuendo 8 slots. Reaper track-to-track sends convert in both directions. Send routing and panning are mapped to the destination layout where supported; the report identifies anything that doesn't transfer. | RW | RW | RW | RW |
| Master fader leveliReaper master (incl. automation to PT) → Cubase/Nuendo Output channel level (level only, no automation). | RW | RW | W⚠ | W⚠ |
| Track solo / notesiNotepad ↔ track notes. | RW | RW | RW | RW |
| Track mute / colouriTrack colour — audio and MIDI — maps through the project's Event Colors palette (nearest slot on write, the project's own palette on read); PT ↔ Reaper stay full 24-bit RGB. Track mute transfers on every route. | RW | RW | RW⚠ | RW⚠ |
| Inactive / disabled tracksiCubase/Nuendo disabled tracks supported. Reaper has no “inactive” — arrives muted; optional skip toggles. | RW | ⚠ | RW | RW |
| Hidden tracks | RW | RW | RW | RW |
| Folder (visual-only) tracksiPurely-organizational (non-summing) folder tracks now convert both ways across all four formats — Pro Tools basic folders, Reaper folders and Cubase/Nuendo folder tracks — preserving nesting, open/closed state and folder solo & mute. Summing/routing folders convert separately as Groups (see Summing groups). | RW | RW | RW | RW |
| Plug-ins + plug-in automation (Beta) — listiSupported plug-ins only: AAX ↔ VST3 and supported VST2 / AU sources → AAX / VST3. ID, settings and automation vary by plug-in and direction — see the compatibility list. ReaSurroundPan is interpreted as a panner, not carried as a plug-in. | ⚠ | ⚠ | ⚠ | ⚠ |
| Feature | Pro Tools | Reaper | Cubase | Nuendo |
|---|---|---|---|---|
| Clip position / length / source offsetiSample-accurate positions, lengths and source offsets on every write path. | RW | RW | RW | RW |
| Clip gain: static | RW | RW | RW | RW |
| Clip gain: envelopes | RW | RW | RW | RW |
| Clip mute / names | RW | RW | RW | RW |
| Clip coloursiFull 24-bit RGB between PT and Reaper; Cubase/Nuendo map through the Event Colors palette (nearest of 16 on write, the project's own palette — including customised ones — on read). | RW | RW | RW⚠ | RW⚠ |
| Fade in / out + shapesiFade shapes map between each DAW's shape families so curves sound the same on both sides. | RW | RW | RW | RW |
| Crossfades + shapes + midpointiSame-file and cross-file crossfades, including inside inactive Track Versions. | RW | RW | RW | RW |
| Loop-source clipsiMIDI loop repetitions transfer as finite placements where their source geometry is known. Audio-loop repetition remains a limitation. | RW | RW | —⚠ | —⚠ |
| Playlists / takes / lanes / VersionsiFull triangle: active version = playing content; audio and MIDI; fades and gain on clips inside inactive Versions included. | RW | RW | RW | RW |
| Feature | Pro Tools | Reaper | Cubase | Nuendo |
|---|---|---|---|---|
| Volume / pan / mute lanesiStereo pan is never written onto a surround-format Cubase track (Cubase doesn't allow it). | RW | RW | RW | RW |
| Surround panner: positionsiIndependent left and right channel positions convert to and from the Cubase MultiPanner, and back to ReaSurroundPan or the Pro Tools panner. | RW | RW | RW | RW |
| Surround: divergencesiDivergence and Size convert between the Pro Tools panner and the Cubase MultiPanner. Untouched panners stay untouched. | RW | RW | RW | RW |
| Surround: Center % / LFEiLFE in true dB. | RW | RW | RW | RW |
| Height (Z)iCubase 10/11 display height formats as 5.1 (data preserved; native from Cubase Pro 12). | RW | RW | RW⚠ | RW |
| Panner automationiMoving independent dots become synchronised x / y / rotation / width lanes — and read back as moving ReaSurroundPan / PT lanes. | RW | RW | RW | RW |
| Feature | Pro Tools | Reaper | Cubase | Nuendo |
|---|---|---|---|---|
| Notes / velocities / durations | RW | RW | RW | RW |
| CC / pitch bend / program change / aftertouch | RW | RW | RW | RW |
| SysExiMIDI SysEx transfers on supported PTX, RPP, CPR and NPR routes. Not every legacy Pro Tools session format is covered. | RW⚠ | RW⚠ | RW⚠ | RW⚠ |
| Per-track MIDI channeliPT has no per-track channel. | — | RW | RW | RW |
| Clip (part) mute | RW | RW | RW | RW |
| Shared / ghost partsiShared / alias / ghost MIDI now stays linked, so cross-track, cross-playlist and 3-way sharing is preserved where the target supports it. Pro Tools has no alias concept, so on the PT side shared parts become independent copies. | ⚠ | RW | RW⚠ | RW⚠ |
| MIDI playlists / lanes / VersionsiSame triangle as audio. | RW | RW | RW | RW |
| Instrument tracksiInstrument tracks transfer their MIDI and supported mixer and insert data; REAPER represents them on its general track type. The hosted instrument and its settings don't transfer, and an Instrument track's own colour isn't yet written to Cubase/Nuendo. | RW⚠ | RW | RW⚠ | RW⚠ |
| Media | How it converts |
|---|---|
| Split-mono .L/.R pairs | Merged to one interleaved WAV on every write path that needs it (PT keeps split-mono natively). |
| FLAC / OGG / MP3 / WavPack / M4A / AAC / AIFF sources | Decoded to WAV for targets that need it (PT, Cubase/Nuendo); Reaper plays them natively. |
| Sample-rate mismatches | Resampled to the session rate for PT and Cubase/Nuendo targets (Cubase plays mismatched pool files transposed). Reaper needs no resample. |
| Link vs Standalone | Link references media in place by absolute path (multi-folder / multi-disk supported); Standalone builds a self-contained bundle. Offline files keep their paths for relinking; a Relink dialog runs before conversion. |
| RF64 / >4 GB WAV | Supported. |
| Format | How it converts |
|---|---|
| .ptx | Reads supported legacy and current PTX session formats. Current native verification uses Pro Tools 2026.4 Ultimate. |
| .rpp | REAPER RPP sessions; current verification uses REAPER 7. |
| .cpr / .npr — read | Standard projects and the large-project format used by Cubase/Nuendo 13+. |
| .cpr / .npr — write | Standard project format — verified opening in Cubase 15 and Nuendo 15. Projects too large for it (≈1.5 GB) are flagged in preflight. |
Interchanger is always evolving and improving. Moving sessions between DAWs is a complex task, so occasionally something may not transfer as expected — or may not transfer at all. Please try converting your own sessions with the trial version before purchasing.
If something goes wrong, please send me a report through the Support section in the app — it's available in the trial version too. I'll look into the issue. Your reports help make Interchanger more reliable — thank you!
— Alex Breitburg, developer of Interchanger
| Feature | Mac Directfrom this site | Windows Directfrom this site | Mac App Storefrom Apple | Microsoft Storefrom Microsoft |
|---|---|---|---|---|
| Session conversion, all four formats | Yes | Yes | Yes | Yes |
| Conversion of supported plug-ins (Beta) | Yes | Yes | Yes | Yes |
| Built-in plug-in library and ready-made mappings | Yes | Yes | Yes | Yes |
| Add your own plug-ins and create mappings | Beta | — | — | — |
| Spot to & from Pro Tools (REAPER extension) | Yes | — | — | — |
| Import PTX (REAPER extension) | Yes | — | — | — |
(Recommended)
Downloaded and bought on this site. One license activates up to two computers, Mac (Intel & Apple Silicon, macOS 14+) or Windows 11 x64, in any mix.
$199
$199 — introductory price, will rise to $399
Free trial: 2 minutes from the first clip on the timeline.
Bought and updated through Apple.
Free download for Windows 11 x64, updated through Microsoft. The license key is bought on this site.
Before paying anywhere: the trial converts like the full version, limited to 2 minutes from the first clip on the timeline. User Manual (PDF · English) · Plug-in list · Changelog
No. Interchanger reads and writes the session files itself, so neither DAW has to be installed or licensed for the conversion. You'll need the destination DAW to open the result. Spot is the exception: both REAPER and Pro Tools must be running.
It converts like the full version, limited to 2 minutes from the first clip on the timeline. So you can check fades, panning and playlists on your own material. In-app Support works in the trial, and the developer answers personally.
AAF is a separate interchange format between your sessions. Interchanger works with the native session files, which is how supported playlists, takes, Track Versions and panner automation stay in the session. For AAF or OMF from a picture editor, we recommend Vordio.
Supported plug-ins will (Beta). The destination plug-in has to be installed and licensed: plug-ins and their licences are not included with Interchanger. AU is a macOS format. Whether settings and automation transfer depends on the plug-in and direction. See the public list. Anything that can't convert is named in the report.
The Mac direct download (not the App Store or Windows editions), macOS 26 or later, and REAPER and Pro Tools both open. Spot runs as a REAPER extension. "Spot from Pro Tools" saves your open Pro Tools session before reading it.
Interchanger reads your session and writes a new one. If a file already exists at the output path you choose, it can be replaced, so check where you're saving.
Yes, for Windows 11 x64, on the same conversion engine as the Mac app. Download it from this site, or get it from the Microsoft Store. Both are free to try; the license key is bought on this site, also for the Microsoft Store version. One license activates up to two computers, Mac or Windows, and app updates keep your activation, so there is no need to re-enter your key. Spot, Import PTX and adding your own plug-ins are only in the Mac Direct version.
Open License in the app’s sidebar. Under Account, “Your license key” shows a key that also activates the Direct version. Save that key somewhere safe. Then download the Direct version from this site and activate it with the key.
No. $199 one-time, with all future updates included and a 14-day money-back guarantee. $199 — introductory price, will rise to $399.
Yes. Payment and VAT are handled by Paddle, our payment provider and merchant of record. The field is easy to miss: it is not on the first checkout screen, which only asks for your email and country. Continue to the payment step and look at the order summary on the left: directly under the VAT line there is a link to add a VAT number. Enter your company’s VAT or tax ID there, before paying.
If you are a VAT-registered business and your purchase is cross-border, entering a valid VAT ID at checkout means Paddle does not charge VAT on it. In other cases VAT is applied according to your country’s rules; Paddle calculates it and shows the final amount before you pay.
Your invoice is emailed automatically once the order completes. It comes from Paddle, not from filmsound.ai, so search your mailbox for “Paddle” if you can’t find it, and check your spam folder.
Forgot to enter your details? Write to [email protected] and we can reissue the invoice with your company name, VAT number and address. Paddle allows this correction only once per order, so please send all three together.
Send a report from the Support section in the app; it’s available in the trial version too. Describe what went wrong and attach the session file (.ptx, .rpp, .cpr or .npr) so I can reproduce it; you’ll see my replies right there in the app. If you can’t open the app, email [email protected].