AlaVar: Freeware to compute the three Allan Standard Deviations of a time series.Brodgar: Program package used for estimating common trends, seasonal components and cycles in short, non-stationary multivariate time series. Based on dynamic factor analysis.CaterpillarSSA: Based on the model-free method of time series analysis Caterpillar-SSA (Singular Spectrum Analysis). The result of the Caterpillar-SSA processing is identification, analysis and forecast of additive components of time series (trends, periodicities, noise). The program can be applied to multivariate analysis/forecasting and change-point detection.DEMETRA: Free user-friendly interface to Tramo/Seats and X-12-Arima for automated applications and for detailed time series analysis.JMulTi: Time series analysis program, written in Java, to accompany book "Applied Time Series Analysis", by Helmut Lutkepohl and Markus Kratzig.kSpectra Toolkit: Using novel tools such as singular spectrum analysis and multitaper method, time series can be decomposed into noise and predictable components - trends and oscillatory modes, which can be reconstructed and forecasted.Neuro: Dynamic Time Series Analysis: Features the visualization of the multi-channel, multi-frequency digitized data, discrimination, correlation analysis, spectrum, expected density and other functions.[web:reg] [free Excel Add-Ins (Hodrick Prescott, Bandpass, ADF, ARIMA, Correlogram...)]: My programs are primarily econometrical Excel Add-Ins which are written in VBA or C++. Add-Ins have the great advantage that you can work directly from Excel.