Pricing
Not listed
Official monthly price not confirmed
- API
- Not confirmed as a hosted API; KFR ships as a C++ library with documentation and code examples.
KFR
● Identity checkedCode · Vendor site 2026-10-04
KFR is a commercial-friendly C++ digital signal processing framework offering FFT/DFT, filters, resampling, audio I/O, and math utilities optimized for SIMD on Intel, AMD, ARM, and Apple CPUs. Audio, scientific, and embedded teams embed KFR algorithms in desktop and mobile products.
- Category
- Code
- Free access
- Not confirmed;
- API access
- Not confirmed as a hosted API; KFR ships as a C++ library with documentation and code examples.
Is KFR right for you?
A good fit for
C++ developers building audio plugins, measurement tools, or performance-critical DSP pipelines who need vectorized primitives.
Before you choose
Prices and plan limits were not confirmed from the vendor; check their site before buying.
Modern C++ DSP
KFR markets a fast, vectorized C++ DSP framework with FFT, filtering, and audio utilities for professional audio and engineering software.
What it can do
Features & capabilities
Unknown is different from unavailable. Each fact carries its own evidence.
| Capability | Value | Evidence | Checked |
|---|---|---|---|
| FFT and filters | Meta description lists DFT/FFT, resampling, FIR/IIR filters, and filter design among KFR capabilities. | Facts sourced | 2026-10-04 |
| SIMD performance | Homepage emphasizes SIMD-optimized routines across major CPU architectures. | Facts sourced | 2026-10-04 |
| Industry adopters | Site showcases audio and scientific organizations using KFR in production workloads. | Facts sourced | 2026-10-04 |
Understand the total cost
KFR pricing & plans
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Frequently asked questions
What is KFR used for?
KFR is a commercial-friendly C++ digital signal processing framework offering FFT/DFT, filters, resampling, audio I/O, and math utilities optimized for SIMD on Intel, AMD, ARM, and Apple CPUs. Audio, scientific, and embedded teams embed KFR algorithms in desktop and mobile products.
Does KFR have a free plan?
Not confirmed;. This record does not confirm an ongoing free plan.
How much does KFR cost?
A listed monthly price has not been confirmed. See the plan cards for entitlements, billing commitments and seat minimums.
Can I use KFR through an API?
Not confirmed as a hosted API; KFR ships as a C++ library with documentation and code examples.. API access and subscription access may have different terms; consult the linked sources.
What should I check before choosing it?
Prices and plan limits were not confirmed from the vendor; check their site before buying.
Price history
No retained pricing changes yet. A current price alone does not establish a historical trend.
How this profile is supported
Identity and profile
Reviewed vendor source
Read original source ↗Facts apply to the named version and check date. Send a sourced correction if something changed.