<p>This paper presents experimental and probabilistic analysis of jute geotextiles filters. Experiments were conducted to study the compatibility of four samples of jute geotextiles as filter medium in soil through one-dimensional flow test following ASTM D5101. The long-term flow tests were conducted to study the variation in the gradient ratio over time, which is an indicator of the soil-filter compatibility. Among the four samples, the 627 gsm woven jute geotextile exhibited the lowest gradient ratio due to its higher apparent opening size, making it the most suitable as a filter medium for the tested soil. The effect of bitumen coating on the filter behaviour was also analysed, revealing that the bitumen coating increased the gradient ratio by reducing the geotextile’s opening area. Probabilistic analysis was performed to assess the impact of variability in soil particle size and geotextile apparent opening size on the failure probability of the filter. The influence of the deterministic factor of safety on the failure probability of the filter was assessed based on the retention and clogging criteria. A factor of safety of 1.6 is proposed for filters based on the target failure probability of 0.001. Using this factor, allowable ranges of the base soil’s particle sizes (<i>d</i>_<i>15</i> and <i>d</i>_<i>85</i>) has been calculated for the four jute geotextile samples. The probabilistic findings are applicable to both natural and synthetic geotextile filters, providing a broader relevance to geotechnical filter design.</p>