Filament
Filament: A focused MIDI host for routing, revoicing and orchestrating instruments in a DAW. Ranked #39 of 40 in Audio Plugins by our editors (4.7/10); pricing: Paid; best for keyboardists routing instruments and MIDI in a DAW.
At a glance
- Editor score4.7 / 10
- PricingPaid
- Best forKeyboardists routing instruments and MIDI in a DAW
- Free planNo
- Paid from£149 one-time
- License modelPerpetual
- Facts checked23 Sep 2026
Where it wins
- Hosts up to 64 AU/VST3 instruments within a single DAW track
- Routes up to 8 input voices to 64 output rows with per-connection transpose
- Includes chord revoicing, arpeggiation, clip launching and MIDI output
Where it doesn't
- Paid license starts at £149 as a one-time purchase
- Focused on MIDI and instrument orchestration, not general audio effects
- Available only on macOS and Windows
Our verdict on Filament
Filament is a MIDI orchestration plugin and standalone application for composers, producers and sound designers who want to route instruments and generated MIDI from a keyboard. It hosts up to 64 AU or VST3 instruments in a single DAW track, and routes up to 8 input voices to as many as 64 output rows. Per-connection transpose controls, chord revoicing and keyswitch-based configuration switching support more involved instrument setups. That focus makes it relevant to keyboardists managing multiple sounds or articulations, rather than users looking for a general-purpose audio-effects plugin.
Its feature set extends beyond routing: Filament includes a phrase arpeggiator, MIDI clip launcher, smart modifier and articulation trigger, along with a mixer, macros and presets. Generated MIDI can go to a DAW, external ports, recordings or MuseScore. The standalone app offers an option outside the AU/VST3 plugin formats, while MuseScore is the named integration. The breadth suits workflows centered on shaping and directing MIDI; buyers seeking a broad ecosystem of integrations or audio processing should look elsewhere.
According to the vendor's pricing information, Filament costs £149 as a one-time purchase, with a full license for up to 3 machine activations and a 14-day money-back guarantee. It is available for macOS and Windows, with email and documentation support. There is no free plan, so the purchase is best considered by people who need its specialized hosting and orchestration tools. Keyboardists who can make use of voice routing, revoicing, articulation controls or MIDI output may find the single-purpose design a fit; those needing a general effects suite or a free starting point should choose an alternative.
Your product? Our editors can test Filament in depth and publish a review, labelled as paid · from $149/mo →
Filament pricing
All 1 Filament plans and prices →
Filament fact sheet
| Free plan | No |
|---|---|
| Paid from | £149 one-time |
| Plugin formats | AU, VST3 |
| Effect types | Not verified |
| License model | Perpetual |
| External sidechain | Not verified |
| Oversampling | Not verified |
| Surround support | Not verified |
| Product scope | Single |
| Money-back guarantee | 14 days |
| Deployment | Desktop |
| Platforms | macOS, Windows |
| Support | Email, Docs |
| Built for | Solo, Small business (editorial estimate) |
| Integrations | 1 integrations: MuseScore |
| Pricing | Paid (source) |
| Website | formalabsaudio.com |
| Facts checked | 23 Sep 2026 |
Filament integrations
Filament lists 1 integrations on its own site.
- MuseScore
Alternatives to Filament
- UAD Plug-InsA flexible plugin suite with native and hardware-DSP options, plus free and paid access.9.4
- Waves UltimateA broad, regularly updated plugin suite for production, mixing, mastering and sound design.9.2
- iZotope OzoneAI-assisted mastering with reference tools and tiered, one-time editions.9.1
See all Filament alternatives →
Used Filament? Be the first to review it
The editor score above is our own research. What this page doesn't have yet is a reader's view — what you used Filament for, what worked and what didn't. No stars are seeded and no review is paid for; an editor reads every one before it appears.
Write a reviewTwo minutes · verified accounts only · read by an editor before it appears
Featured on iTechGuides
Filament is listed in our Audio Plugins directory. Add the badge to your site — it links back to this page.
<a href="https://www.itechguides.com/products/filament/"><img src="https://www.itechguides.com/best/badge/filament.svg" alt="Featured on iTechGuides" width="230" height="46"></a>
Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
Advertiser disclosure: iTechGuides is reader-supported. Vendors can pay for top positions in our rankings and for a place on other products' pages, and we may earn a commission when you click some links. Bought places stand at the number bought; this page and our disclosure say so. Paying vendors may get a fuller, more detailed review from our editors, and that review can change their score. How we rank.
Last updated · How we research and update