Free
Free
FFTW homepage describes the library as free software with downloads from the official site.
- Access
- FFTW homepage describes the library as free software with downloads from the official site.
FFTW pricing
● Identity checkedCode · Vendor site 2026-10-04
FFTW is a free C library for computing discrete Fourier transforms in one or more dimensions on arbitrary input sizes, including real, complex, and DCT/DST variants. It targets high-performance FFT routines with official releases and documentation maintained on fftw.org.
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- Code
- Free access
- FFTW homepage describes the library as free software with downloads from the official site.
- API access
- Not confirmed
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